Text

Change 2EC-3332 to Rev 0 to Design Analysis, 125 Vdc Battery Charger Replacement.
	ML18102A132
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Site:	Salem
Issue date:	03/15/1996
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'l . - =- 1 Pllllic sentce EleCllic & Gas C1*11111 s11om Generating Station - Unit 2 125 Vdc Banerv Charger Replacement

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~ PART 1 - ENGINEERING

' FORM NC.DE-WB.ZZ-0001-8 SECTION 3.0 CHANGE NO.:

T-MOD NO.:

PACKAGE NO.:

2EC N/A 1

3332 DESIGN ANALYSES CP REV NO.: 0 SECTION PAGE NO.: SEE PAGE 2 SECTION PAGE REV. NO.:

A.u* rP<~s ivf""

0 Original Issue ~ 1S'/1<,..

Rev Revision Preparer No. Summary and Date Page 1-Nuclear Common Page 2 of 3 Rev. 5 (Page 1 contains the instructions)

PART 1 - ENGINEERING CHANGE NO.: 2EC 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SE<:;TION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 SECTION PAGE NO. 1 2 3 4 5 6 7 8 9 10 SECTION REV. NO. 0 0 0 0 0 0 0 0 0 ('1 SECTION PAGE NO. 11 12 13 14 15 16 17 18 19 20 SECTION REV. NO. 0 0 0 0 0 0 0 0 0 I)

SECTION PAGE NO. 21 22 23 24 25 26 27 28 29 30 SECTION REV. NO. 0 0 0 0 0 0 0 0 0 0 SECTION PAGE NO. 31 32 33 34 35 36 SECTION REV. NO. 0 0 0 0 0 0 Page 2 Rev. 0 Nuclear Common Page 3 of 3 Rev. 5

PART 1 - ENGINEERING CHANG!:: NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 TABLE OF CONTENTS SECTION DESCRIPTION PAGE NO.

3.0 Design Analysis 4 3 .1 Existing Conditions 4 3.2 Problem Resolution 5 3.3 Electrical Considerations 5

3. 4 HVAC Considerations 26

. 3. 5 Civil/Structural Considerations 26 3.6 Seismic Qualification 28 3.7 AL.ARA 28 3.8 Fire Protection 28 3.9 Penetration Seals 29 3.10 Combustible Loading 30 3.11 Physical Size Considerations 30 3.12 Environmental Considerations 30 3.13 In Plant Separation Issues 31 3.14 NPRDS Search 31 3.15 Station Blackout Analysis 31 3.16 Technical Specification Change 32 3.17 List of Attachments 33 3.18 References 34 Page 3 Rev. 0 Nuclear Common Page 3 of 3 Rev. S

PART 1 - ENGINEERING CHANGE NO.: 2EC - ................

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FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/P.

SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 3.0 DESIGN ANALYSIS 3.1 EXISTING CONDITIONS Salem Unit 2 has Six (6) Safety Related, 125 VDC Battery Chargers feeding the three (3) 125 VDC safety related batteries. Each of the three batteries is powered by two chargers, which are operated as a primary and a backup charger. The two charge~s feeding a battery are powered from different 230 VAC switchgear buses so that an outage on one of the 230 volt buses would allow the bat:ery that is normally powered from that bus to be powered from an alternate bus temporarily until the normal feed has been returned to service. The supply breakers to the battery chargers are administratively controlled to allow only one charger at a time to supply the de bus to prevent inter-connection, via the 125 VDC System, of the 240 V vital buses of different divisions (Reference 27).

The existing chargers are rated 250 amperes output (DC) . They have a current limiting circuit that is set to limit current at 200 to 220 amperes [SC.MD-ST.125-000l(Q)].

The existing battery chargers were manufactured by Exide Industrial Battery Division and were originally in~talled at Salem in the early 1970's. Exide no longer manufactures safety related battery chargers and has discontinued providing replacement parts for the Model USF-130-3-250 chargers presently installed at Salem. Due to their age, required maintenance is increasing and replacement parts are becoming difficult or impossible to obtain.

The existing 125 VDC battery chargers are experiencing the following problems:

The battery chargers are displaying age related failures of various parts and components

Maintenance is becoming difficult due to the unavailability of spare parts Page 4 Rev. 0 Nuclear Common Page 3 of 3 Rev. 5

PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 3.2 PROBLEM RESOLUTION This DCP will replace the existing Unit 2 Exide 125 VDC Battery Chargers with new C&D chargers which will be installed in approximately the same location as the existi~g chargers. The new chargers are rated for 300 amperes DC (continuous) output, but their current limiting circuits will be set at 200 amperes DC (+/-5*

~-\-

tolerance) because of cable ampacity limitations of the 240 VAC cable. In conjunction with this DCP, a TechGical Specification change will be required. Licensing Change Request LCR S96-01 has been submitted to the NRC for approval of* the Technical Specification change which will reduce the minimum required continuous charge~

output capability from 200 amperes to 170 amperes. See Section~. '7 At a nominal current limit setting of 200 amperes, the minimum continuous output current will be 190 amperes. '

The replacement will resolve the existing problems (section 3.1) and will provide the following advantages:

More efficient operation

Less frequent maintenance

Readily available spare/replacement parts

Increased reliability 3.3 ELECTRICAL CONSIDERATIONS 3.3.1 Battery Charger Electrical Characteristics 3.3.1.l Charger Capacity The new C&D chargers are rated for 300 amperes DC output (continuous) with the output having been factory set to limit current to a maximum of 210 amperes (200 ampere nominal +/-5% tolerance). This setting was chosen because the maximum AC input current required to power the charger must be limited to 108 amperes due to cable ampacity. Refer to section 3.3.4.1.

Calculation ES-4.004(Q), Revision 2, "125 Volt DC Battery and Battery Charger Sizing" provides the charger sizing for Page 5 Rev. 0 Nuclear Common

Page 3 of 3 Rev. s*

PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 Salem Units 1 and 2. The calculation sizes the chargers using the guidelines provided in IEEE Std. 946-1992. It provides charger sizing based on the chargers having the ability to recharge the battery following a design duty cycle discharge and carry the normal operating load. There are two battery chargers per batterj; however, only one is normally connected at a time.

The following is taken from Calculacion ES-4.004 (Ref. 10)

The formula for determining the battery charger rating is from IEEE 946-1992 as follows:

I= L + (1.1 (Ah))/T I Minimum required charger rating in amperes L Continuous DC load in amperes 1.1 Constant that compensates for battery losses AH Ampere-hours discharged from the battery o'r the eight hour ampere-hour rating of the battery T Time in hours to recharge the battery to approximately 95% of capacity The eight (8) hour rating of the C&D LCR-33 battery to 1.75 volts per cell is 2320 A-hr. However, based on the LOOP/LOCA duty cycle (which lasts 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months ) or the Station Black Out (SBO) duty cycle (which lasts 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months ), the battery will not be completely discharged.

From Reference 10, the maximum ampere-hours that could be discharged during a LOOP/LOCA scenario is 545.92A-hrs for the 2A Battery, 617.02A-hrs for the 2B Battery, ~nd 735.34A-hrs for the 2C Battery. During the SBO scenario, the maximum discharge is 743.15A-hrs for Battery 2A, 1179.86A-hrs for Battery 2B and 1239.13A-hrs for Battery 2C. These values are used in the Calculation for the ampere-hours that need to be replaced by the battery chargers. The recharging time of the battery is chosen to be 30 "hours. The 30 hour3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months recharge time is arbitrarily selected by Reference 10, based on considerations that the optimum battery recharge time is a compromise between protecting against a too rapid recharge and minimizing DC system down time. The "continuous load" used for sizing the charger is considered the continuous load during normal plant operation.

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PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 Using the above criteria, the Calculation provides the following battery charger sizing requirements (See Reference 10)

Battery Charger Size Sattery Charger Size Battery Req'd. (LOOP/LOCA) Req' d. (SBO) 2A 107.83A 115.06A 2B 139.68A 160.32A 2C 106.53A 125.00A As can be seen, the new chargers, with a 190 ampere output at the minimum current limit rating, meet the above requirements and provide adequate capacity.

3.3.1.2 AC Input Current and Voltage The charger is rated to operate from a 240 V +/-10~, three (3) phase, 60 Hz, +/-3% system. For a nominal 240 VAC input charger, the charger should have in input voltage range of 212 to 254 VAC per Reference 25. The specification (Reference 13) requires a voltage range of 240 VAC +/- lOio, or 216 to 264 VAC. The C&D test data provided (Attachment

2) shows that the charger is capable of operating over the entire range from 212 to 264 VAC, enveloping the requirements of both documents.

Specification, S-C-125-EDS-0311, Revision 2, requires that the input current remain below 108 amperes AC for all input voltages, with a maximum DC output current of 210 amperes.

This is confirmed by test results provided by C&D from tests performed on one of the Salem chargers, Serial No.

954294. With an output current of 210 amperes at 142.2 VDC, the highest input current occurs at the maximum rated incoming voltage of 264 volts AC; the current input at this voltage is shown to be 107.5 amperes (Refer to Attachment 2). The maximum Salem equalizing voltage is currently 142.8 (Reference 23). This voltage will be revised to 139.6 *_ 139.8 in Procedure SC.MD-CM.ZZ-0009(Q) (Reference

23) by CD E520. 139.8 volts equates to 2.33 volts per cell, and is within the equalize charge range recommended by C&D for the batteries (PSBP 309448, Reference 24). This voltage is also within the range of voltages for which data was taken during the testing of the Serial Number 954294 charger.

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PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SEGTION 3.0 PACKl\_GE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 3.3.1.3 DC Output Current and Voltage The chargers are rated for 300 amperes DC output (continuous), with the output factory set to limit current to a maximum of 210 amperes (200 amps nominal +/-5~

tolerance). See Section 3.3.l.l. A range of current limit will be required to allow for d~ift and tolerances in settings. Based on information from C&D, and a requirement added to the specification the tolerance is+/- s~.

Therefore, a midpoint setting of 200 will be incorporated into procedures, with a minimum of 190 amperes and a maximum of 210 amperes.

The float voltage is specified to be 2.20 - 2.25 volts per cell and equalizing voltage to be 2.33 volts per cell (Reference 13).

3.3.1.4 Voltage Regulation The battery charger specification (Reference 13) requires that the new chargers be constructed in accordance with NEMA Standard PE 5 (Reference 25). NEMA PE 5 requires the following voltage criteria:

Over an input voltage range of 212 - 254 VAC, frequency 60 hertz, +/- 5%, and load variations 0 to 1ooi, the output float voltage deviation is specified in PE *5 not to exceed+/- 1/2%. The C&D test data provided (Attachment 2) shows that the charger meets this requirement.

Over an input voltage range of 212 - 254 VAC, frequency 60 hertz, +/- 5%, and load variations 0 to 100%, the output equalizing voltage deviation is specified in PE 5 not to exceed+/- 1%. The C&D test data provided (Attachment 2) shows that the charger meets this requirement.

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PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 3.3.1.5 Voltage Dynamic Response

Per NEMA PE 5 , during a 1 o ad var i a t ion o f 2 0 - 1 0 0 '!, or 100 - 20%, the output DC voltage should remain within a range of 94 to 106~ of the output voltage setting.

Output voltage should return to and remain within the voltage deviation limits discussed above, under 3.3.1.4, within two (2) seconds. Factory cesting, which has been specified to be performed in accordance with NEMA PE i::.,

will verify that this requirement is met.

Sudden input voltage changes within the rated value (212 to 254 VAC) should not cause the output voltage to vary by more than the deviations specified above for float voltages (+/-1/2%) and for equalizing charge voltages

( +/-1 %)

Factory testing, which has been specified to be performed in accordance with NEMA ,p£ 5, will verify that this requirement is met.

3.3.1.6 Ripple Voltage

Ripple voltage has been specified to be 35 - 40 millivolts RMS maximum. Factory testing will verify and field testing will confirm that this value is not exceeded.

3.3.1.7 Input and Output Surge

Factory testing in compliance with NEMA PE S will verify that this concern has been addressed.

3.3.2 Diesel Generator Loading The Diesel Generator Loading calculation (ES-9.002) uses the calculated DC bus loading for each DC bus, and calculutes input power to each charger using efficiency and power factor. Using the same methodology, but substituting Page 9 Rev. 0 Nuclear Common Page 3 of 3 Rev. 5

PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 the new higher efficiency and the new power factor values supplied by the manufacturer, the following applies (From CD E511)

INPUT REAL POWER (Wl CHARGERS EXISTING NEW DATA DATA USED CALCULATED 2Al; 2A2 20172 13630 281; 282 25253 16653 2Cl; 2C2 20745* 14996 The above data represents the battery chargers' input real power required to provide the largest 125 VDC power load during a LOCA, after the first minute into the event. It is based on the DC load calculated in ES-4.003(Q), Rev. 1 (Reference 11), which provides a battery load profile. As can be seen, this value has decreased from the previous charger load on all three Emergency Diesel Generators.

Therefore, the change in the loading condition on the battery chargers will not affect the conclusion of the Emergency Diesel Generator Loading Calculation, ES-9.002, Rev. 2 .

3.3.3 Transformer Loading Whereas the Diesel Generator Loading calculation is based on the calculated DC bus loading during a design basis event, for transformer loading it is necessary to base the loading on the maximum charger load since this load will occur for a period of time during an equalizing charge of the batteries after discharge. Therefore, the loading of the new charger contribution to the transformer load is based on the current limit setting, the maximum load that the charger will draw. Based on data provided by C&D from the testing performed on new Salem charger, Serial No.

954283, the load management data base will be revised by CD E506 to include the following data:

Existing Charger Load: 58.342 KVA (this number varies slightly for the different chargers - see CD E506) at .750 power factor New Charger Load (Based on 108 ampere input at 264 VAC 3<l>): 49.384 KVA, power factor= .64, eff. = .906 Page 10 Rev. 0 Nuclear Common Page 3 of 3 Rev. 5

PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV . NO.: 0

- Calculation ES-8.004 is being revised per CD E510/0 to incorporate the values used in the calculation above.

actual load tables in ES-8.004 cannot be revised until the Load Management Program has been run using the new values:

however, a manual calculation shows that the charger load The reduction is approximately 8958 va to each of the three Vital 4160-240 V transformers. This load reduction is the result of higher efficiency of the new chargers.

3.3.4 Cables Terminating in the Chargers 3.3.4.1 Cable Ampacity 230 VAC Input Power Cables The 230 VAC power cables to the chargers are cables 2Al0Y-A, 2Al4Y-A, 2Bl0Y-B, 2Bl2Y-B, 2Cl2Y-C and 2Cl0Y-C. The new chargers will have their current limit set at 200 amperes DC output (210 amperes maximum) . As discussed in section 3.3.1.1, the.maximum charger current draw is 108 amperes AC.

Engineering Evaluation S-1-230-EEE-1023, Revision 1, "Engineering Evaluation For The 230 VAC Power Feeders For The 125 VDC Battery Chargers" was prepared to assess the ampacity of the battery charger AC power feeder cables.

The 230 VAC power cables feeding the chargers are 3/C - #2 AWG cables.

The Engineering Evaluation concludes that the cable is capable of operating continuously at a maximum *current of 138 amperes. It states in the "Recommendations" Section that the 3/C #2 AWG cable is adequate for use with the new C&D battery charger provided that the circuit breaker is set to provide a maximum long time protection trip current of 138 amperes. A breaker setting meeting these requirements will be provided (See Section 3.3.5.1).

Therefore, the cable ampacity is adequate.

FSAR Section 8.1.4.2.1, Cable Ratings, states:

"Power Cable Ampacity," AIEE Pub. No. 5-135-1/IPCEA Pub.

No. P-46-426 has been explicitly used as the criteria to determine allowable cable ratings as appropriate for tray, conduit, and raceway applications.

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PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 DACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 The free air ampacity of 138 amperes would typically be derated, per IPCEA P-46-426, for installation in a cable tray, based on the number of cables in that tray. However, the Engineering Evaluation has shown ~hat this derating is not necessary due to the low tempera:~res calculated in the applicable cables. It i~ therefore concluded that the 3/C -

2, 230 VAC power cables feeding the six Unit 2 chargers are capable of carrying their full free air ampacity rating of 138 amperes.

125 VDC Output Power Cables The 125 voe power cables from the ctargers to the DC switchgear buses are cables 2ADC5-AT, 2ADC6-AT, 2BDC5-BT, 2BDC6-BT, 2CDC5-CT and 2CDC6-Ct.

DC CABLE AMPACITY Operability of the existing cable is defined in engineering calculation ES-4.005, Reference 31. The calculation uses a heat rise method to determine that the existing cable operates at 82.5°C during current limit operations. Based

on the cable's 90°C rise the circuit is considered operable.

A conservative decision has been made to replace the subject cable with a size based on Engineering Technical Standard for Power Cable Ampacity, Reference 20.

Design Inputs

Battery charger current limit will be set at 200 amperes

+/- 5%. Therefore, based on current limit, the cable must have a capacity of at least 210 amperes.

The"existing conduit is 2-l/2n rigid steel, with a one (1) hour fire wrap of 3M E50A Series mat.

The derating factor for 3M E54A fire wrap is 0.72 as developed in calculation ES-10.013, Section 7.3, Reference 29.

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PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332

..1 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A I SE~TION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0

Design Assumptions

The Power Cable Technical Standard, Reference 20, provides Table 5-3 for three cables routed in conduit.

The subject cables are 125V DC rc*'!~ed in parallel. The use of the 3/c ampacity is assumed to be conservative.

The Power Cable Technical Standard, Section 5.2.3, Reference 20, requires that paralleled circuits be derated by a factor of 0.9 to account for circuit imbalance. The circuit *1ength of the subject cables is less than 10' and the 0.9 factor is not considered.

The Salem Diversity Calculation, Reference 29, conservatively assumes that the same derating factors apply to wrapped cable trays and wrapped conduits, Section 3.5.

Arnpacity Calculation

Cable in conduit from Power Cable Arnpacity Technical Standard, Reference 20, Table 5-3:

3TOO 149 amps Paralleling of the feeders and derating for fire wrapped conduit by a factor of 0.72 yields:

3TOO (2

149

0.72) = 215 amps

Conclusion:

The paralleled #2/0 AWG rated at 215 amps is acceptable.

Conduit Fill Calculation

Ex~sting 2-1/2" Rigid Steel Conduit has a 100~ area of:

D 2.469" internal diameter A (D/2)~

IT A (1.125) ~

IT 4.79 sq. in.

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PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO. : N/A SECTION 3.0 PACKAGE NO. : ---,-1-------

DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0

Area of (4) l/c #2/0 AWG:

D 0.676" diameter A ( (0.676/2) -

IT)

4 l:o. (0.359)

4 1.436 sq. in.

Percentage fill is calculated by dividing the area of the four cables by the 100% area of the conduit:

;Fill = (1.436/4. 79)

100 Fill = 30~,

Jam ratio for multiple conductors is determined by summing the diameters of all cables in a conduit and using the formula: Jam Ratio = 1.05 D/d, Reference 30, where:

D diameter of the conduit d sum of the diameters of the cables within the conduit D = 2.469 d = 4

0.676 = 2.7 Jam Ratio 1.05 (2.469/2.7)

Jam Ratio = 0.96 A jam ratio of less than 2.8 is acceptable; therefore the jam ratio is acceptable in this installation.

As shown above, the use of 4-#2/0 AWG is acceptable.

3.3.4.2 Physical Arrangement The AC and DC power cables enter the charger cabinets from the bottom through floor penetrations. During replacement of the chargers, the AC cable will be coiled in the bottom of the cabinets and care will be taken, both during coiling and duFing charger removal/installation to prevent damage to the floor seal. Care will also be taken to ensure that the minimum cable bend radius is not violated. If a seal should get damaged for any reason, it will be repaired using an MCR, with input from the Penetration Seals Group.

As stated in Section 3.3.4.1 (above), the DC power cables will be replaced. This will require removal of the old seals and installation of new seals in the 2-1/2" conduits (See Section 3.9)

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PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO. : N/A SE6TION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 The alarm cable currently comes from an overhead tray and is routed in conduit down between the two chargers to near the bottom of the charger cabinets. A tee condulet allows the cable and jumpers between the two chargers to make up the parallel connection of the alarm contact in the two chargers. The conduit will be removed and the cable will be installed into the top of one of the chargers of each pair through a strain relief connector. The contacts in the new chargers will be connected in series to account for the different alarm operation of the new chargers' alarm relays (Refer to Section 3.3.8).

3.3.4.3 Cable Splicing Due to the different physical configuration of the new chargers, the existing 240 VAC power cables may be too short to terminate, especially in Chargers 2Al and 2Bl. As a result, Class lE Raychem splices will be installed as required. A new Class lE cable will be installed (spliced) which is the same size as is currently installed. These splices will not degrade the integrity of the installation.

Megger testing will be performed to assure the adequacy of the insulation resistance after installation of the

3.3.5 splices .

Breaker Sizing and Settings 3.3.5.1 Switchgear Breakers (230 VAC)

As discussed in Section 3.3.1, the maximum 230 VAC input current for the chargers is 108 amperes. As discussed in Section 3.3.4.1, the cable ampacity is 138 amperes. To be conservative and to allow for the tolerance of the breaker trip devices, the breaker should be set no higher than 125A (110% of 125 = 137.5 < 138).

Four of the existing 230 VAC breakers have Type OD-3, 125 ampere" trip coils. These breakers are: 2A10Y, 2B10Y, 2Cl OY and 2Cl2Y. The existing trip setting is 125 amperes and will provide adequate overload protection of the cables.

The remaining two 230 VAC breakers (2A14Y and 2B12Y) have a Type SS-SE, 150 ampere trip device. For this trip unit, the setting will be set at 0.8 times the rating, or 120 Page 15 Rev. 0 Nuclear Common Page 3 of 3 Rev. 5

PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO. : 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 amperes. lloa of 120 amperes = 132 amperes, again less than the 138 ampere rating of the cable.

For both types of trip devices, functional testing will confirm the Lrip values.

The settings chosen will provide adequate short circuit protection for the #2 AWG cables installed and will provide coordination with the upstream (main) switchgear breakers, as shown on the coordination curves provided in Calculation ES-13.006 (Ref-er to CD E512/0).

The settings do not provide a large margin between the minimum value of the trip curve tolerance and the maximum 230 VAC input current of 108 ampe~es required by the charger during maximum output (current limit). The OD-3 trip coils, which will be set at 12S amperes, have a minimum long time trip (bottom of the trip tolerance curve) equal to 12S

0.9 = 112.S amperes. The SS-SE electronic trip device, which will be set at 120 amperes, has a minimum long time trip (bottom of the trip tolerance curve) equal to 120

0.9 = 108 amperes. While a little more margin is desirable, the design criteria for this installation are extremely tight. It is necessary to protect the cable, so it is not possible to raise the long time trip setting. It is also necessary for the charger to be able to provide the maximum allowable output current.

As a result, it is necessary to attain these "tight" settings and allow less margin than desirable between the minimum trip value and the maximum load. This is acceptable for the following reasons:

The two SS-SE trip devices are installed on circuits that power standby chargers, 2A2 and 2B2. These chargers are operated as backup chargers and are restricted by the Technical Specification from being in service for more than seven (7) days consecutively.

T~eir limited use is primarily during maintenance of the primary charger and it is not expected that they will be used in current limit, except possibly during recharging of the battery after a discharge test.

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DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 For the input current to be at the maximum value (108 amperes) the current limit circuit would need to drift its maximum amount of 10 amperes, allowing 210 amps of output DC current.

The trip characteristics for the SS-SE would need to be at the minimum value given on the time-current characteristic curve.

It is very unlikely that both of the above two circumstances will occur simultaneously, which is the only case that could cause the breaker to trip.

Factory testing was performed by C&D co determine the inrush current requirements of the new chargers (See Attachment 5). This test data has been used in providing the instantaneous breaker settings, to assure that the breaker will not trip during energization of the chargers.

3.3.5.2 Battery Charger Input Breaker (230 VAC)

The charger input breaker is a Westinghouse type JDB, 250 ampere breaker. It provides a disconnecting means for the charger input power and provides overload and short circuit protection for the charger, although many of the internal circuits are also fused. There are anode fuses on the rectifier units to protect the rectifier against fault currents. The input breaker does not coordinate with the next upstream breaker, the 230 VAC Switchgear breakers.

However, this is not necessary since tripping of either breaker will trip the same load and will not trip additional loads other than the individual charger.

3.3.5.3 Battery Charger Output Breaker (125 VDC)

A 400 ampere DC circuit breaker is provided by C&D on the output of the charger. The charger output breaker has an instanraneous (magnetic only) overcurrent trip element providing short circuit protection. The charger does not provide sufficient current to trip the breaker at the factory setting (750A), therefore, coordination between this breaker and the 125 VDC bus load breakers is not an issue. Any fault on a load circuit would be cleared by the current supplied by the DC system (charger plus battery) .

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The charger replacement does not change this arrangement, therefore, the existing calculations are considered adequate.

Coordination, however, needs to be demonstrated between the charger output breaker and the main oattery fuses to clear a fault internal to the battery charger. This scenario is not addressed in the current calculation, but coordination is demonstrated by plotting the output breaker's Time/Current curve against the main battery fuse's Time/Current curve. Refer to Attachment 3.

If failure of the current limit circuit is postulated, the 230 VAC input current would increase to a level that would cause the 230 volt switchgear breake~ to trip. Since the charger output current is approximately a 2:1 ratio to the input current (i.e. 210:108) the 230 volt breaker trip curve was shifted on a plot to show the approximate DC output current versus the trip time of the 230 volt switchgear breaker. As shown, (See Attachment 3) an overload on the DC, assuming failure of the current limit circuit, would cause the 230 VAC breaker to trip.

3.3.5.4 Battery Charger Input Breaker at 125 VDC Switchgear A 400 ampere DC non-automatic circuit breaker exists at the 125 VDC incoming switchgear feed from each of the six (6)

Unit 2 battery chargers. The breaker is installed to be used as a manual disconnect. No coordination with the upstream breaker is needed in this configuration as the breakers are connected in series.

3.3.6 Incoming 240 VAC Voltage Drop Analysis The new battery chargers are rated for 240 VAC +/- 10%

(Incoming) per Specification S-C-125-EDS-0311 (Reference

13) and 212 to 254 volts per NEMA PE 5 (Reference 25).

Calculation ES-15.00B(Q), Revision 2, "Salem Units 1 & 2 De-Graded Grid Study" (Reference 21), performed a study to determine the adequacy of voltage profiles. for vital equipment in the power distribution system during de-graded grid conditions. This calculation provides the worst case voltages at the vital buses during accident and normal Page 18 Rev . 0 Nuclear Common Page 3 of 3 Rev. 5

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0 operating conditions, with the buses configured in both the normal configuration and an alternate line-up. The following voltages apply at the 230 Volt Vital Buses (based on 240 V being 1 p.u.):

Worst Case Voltage (p.u.)

Normal Line-up Alternate Line-up 230V Bus 2A 0.9009 (t=O) 0.8615 (t=O) 0.9955 (t=4 sec.) 0.9887 (t=4 sec.)

0.9346 (degraded) 0.9346 (degraded) 230V Bus 2B 0.8746 (t=O) 0.8621 (t=O) 0.9922 (t=4 sec.) 0.9907 (t=4 sec.)

0.9335 (degraded) 0.9335 (degraded) 230V Bus 2C 0.8944 (t=O) 0.9361 (t=O) 0.9940 (t=4 sec.) 1.0012 (t=4 sec.)

0.9355 (degraded) 0.9355 (degraded)

As can be seen above, the bus voltage can be below 90i during initial motor starting conditions after a LOCA.

However, the voltage recovers within 4 seconds.

The voltage drop across the cables is as follows:

v I z I '1R~ + x-R 0.21344 .Q/1000 ft.

x 0.04947 .Q/1000 ft.

z ;/(.0456) + (. 0024) z '1(.048) 0.22 .Q/1000 ft.

Ve= IZ (1'l8) (0.22 .Q/1000 ft.) (X)

X = length in 1000s ft.

Voltage Drop for each cable is calculated as follows (For conservatism, the maximum input current of 108A is considered for all cases):

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2Al0Y-A: Bus 2A to 2Al Charger: 153 V: = (108) (0.22 0./1000 ft.) (.153)

F~

= 3.64 volts 2Al4Y-A: Bus 2A to 2B2 Charger: 177 .cl... .__L

v = ( 10 8) ( 0. 22 0./1000 ft.) (.177) = 4.21 volts 2Bl0Y-B: Bus 2B to 2Bl Charger: 144 ft.

V: = (108) (0.22 0./1000 ft.) (. 14 4) = 3.42 volts 2Bl2Y-B: Bus 2B to 2C2 Charger: 143 ft.

V: = ( 108) (0.22 0./1000 ft.) (. 14 3) = 3.40 volts 2Cl0Y-C: Bus 2C to 2A2 Charger: 111 ft.

V: = ( 108) (0.22 0./ 1000 ft.) (. 111) = 2.64 volts 2Cl2Y-C: Bus 2C to 2Cl Charger: 140 ft.

v,. = ( 108) (0.22 0./1000 ft.) ( .140) = 3.33 volts Bus 2A:

From ES-15.008(Q) voltages listed above, the worst case voltage on vital Bus 2A is in the alternate line up, at T=O for a LOCA

- v = 0.8615 (240)

At T= 4 sec:

v = 0. 9887 (240) 206.8 volts 237.3 volts For simplicity and conservatism, voltages have been subtracted as scalar quantities in the following calculations.

Cable 2Al4Y-A (4.2 volts drop) 206.8 volts - 4.2 volts= 202.6 volts. This voltage is lower than the minimum operating voltage required by the Specification or by NEMA PE 5, but this low voltage will last for less than 4 seconds.

At T= 4 sec; 237.3 volts - 4.2 volts= 233.1 volts. This is within the voltage range at the charger.

At a degraded grid (94%), voltage on Bus 2A = 0.9346 (240)

= 224.3 volts. 224.3 - 4.2 = 220.l volts. This is within the voltage range at the charger. After the initial four seconds of the event, all voltages are above this value.

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DESIGN A,NAL".1.-SIS (CONTINUED) 0 Bus 2B:

From ES-15.00B(Q) voltages listed above, the worst case voltage on vital Bus 28 is in the alternate line up, at T=O for a LOCA.

v = 0.8621 (240) 206.9 volts At T = 4 sec.

v = 0.9907 (240) 237.8 volts Cable 2Bl0Y-B (3.4 volts drop) 206.9 volts - 3.4 volts= 203.5 volts. This voltage is lower than the minimum operating voltage required by the Specification or by NEMA PE 5, but this low voltage will last for less than 4 seconds.

At T=4 sec; 237.8 volts - 3.4 volts= 234.4 volts. This is within the voltage range at the charger.

At a degraded grid (94%), voltage on Bus 2B = 0.9335 (240)

= 224.0 volts. 224.0 - 3.4 = 220.6 volts. This is within the voltage range at the charger. After the initial four seconds of the event, all voltages are above this value.

Bus 2C:

From ES-15.008(Q) voltages listed above, the worst case voltage on vital Bus 2C is in the normal line up, at T=O for a LOCA.

v = 0. 8944 (240) 214.7 volts At T = 4 sec.

v = 0. 9940 (240) 238.6 volts Cable 2Cl2Y-C (3.3 volts drop) 214.7 volts - 3.3 volts= 211.4 volts. This voltage is lower than the minimum operating voltage required by the Specification or by NEMA PE 5, but this low voltage will last for less than 4 seconds.

At T= 4 sec; 238.6 volts - 3.3 volts = 235.3 volts. This is within the voltage range at the charger.

At a degraded grid (94%), voltage on Bus 2C = 0.9355 (240)

= 224.5 volts. 224.5 - 3.3 = 221.2 volts. This is within the specified voltage range at the charger. After the Page 21 Rev. 0 Nuclear Common Page 3 of 3 Rev. 5

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initial four seconds of the event, all voltages are above this value (See Reference 21).

It should be noted that these values are very conservative.

They are based on a cable at 90°C, and a charger at its maximum input current. This is an unlikely scenario.

However, should these voltage dips occur, they are over within 4 seconds, and the battery will carry the loads for this short time without affecting the DC loads.

3.3.7 DC System Short Circuit Analysis The short circuit contribution from 3 battery charger is limited by the current limiting circuitry in the charger.

As a result, the short circuit contribution is equal to the current limit setting of the charger. For the existing Exide charger, the current limit (and therefore the short circuit contribution) is set at 220 amperes.

The new C&D chargers will have their current limit set at 200 amperes (210 amperes maximum including drift) at the factory and verified during installati0n testing. As a result, they will contribute 210 amperes maximum to the available short circuit current. Calculation ES-4.003(Q) will be revised by CD E507/0 to reduce the fault current contribution as discussed above.

3.3.8 Battery Charger Alarms The existing Exide battery chargers have a "125 VDC Battery Chargers AC Power Fail" Alarm contact for each charger. The alarm contacts are normally open contacts that are open when the charger is deenergized and closed during normal operation of the charger. The primary and backup charger from each pair have their alarm contacts wired in parallel.

This results in the energized charger having a closed contact which is in parallel with an open contact in the deenergized (backup) charger. Loss of the primary charger will result in the closed contact opening and an alarm occurring at the Auxiliary Alarm Cabinet 34 printer.

The new C&D chargers have a summary alarm relay, "KS" tha.t will provide a contact change of state if any of the Page 22 Rev . 0

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following internal charger alarms occurs: 1) DC High Voltage Shutdown; 2) DC High Voltage Alarm; 3) DC Low Voltage Alarm; 4) AC Power Failure; and 5) No Charge Alarm.

This sununary alarm relay (KB) is a DC powered relay that is deenergized during normal charger operation. Any one of the five alarms discussed above causes the relay to become energized and provide an alarm. During charger shutdown (deenergized), the KB relay is energized until the 400A non-automatic breaker at the DC bus has been opened. It gets its DC power on the output side of the charger DC output breaker; tQerefore, as long as the charger is connected to the DC bus, power is available to operate the KB relay. Operations procedures S2.0P-S0.125-0001, 0002, and 0003(Q) specify that the chargers' internal breakers are first opened to take the charger out of service. Once this occurs, the summary alarm relay (KB) will operate because a loss of AC will be measured, and since DC is available to operate the KB relay, the alarm will function.

The next step in the above referenced procedures requires that the breakers at the 125 VDC panels be opened. Once this has occurred, the DC power to the KB relay will be lost and the relay will return to its shelf condition and clear the alarm condition .

The two new chargers' (per Division) alarm relays (KB) will be wired using normally closed contacts connected in series. This will result in an alarm being received if either of the chargers experiences "Trouble". The standby charger's KB relay will be in the deenergized position as discussed above. The primary charger's KB relay will also be in.the deenergized condition unless one of the five alarms listed above occurs which will energize the KB relay and cause an alarm by opening the contact in the alarm circuit.

This DCP. changes SGS, Unit 2, Control room area Auxiliary Annunciation System Terminal Cabinet 34 printer descriptions as follows:

Existing

Description:

(MD'S I7/0 and IB/0)

TBl-055 2Al and 2A2 125 VDC Battery Chargers AC power Fail Page 23 Rev. 0

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SEeTION 3.0 PACKAGE NO. : 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 TB3-174 281 and 282 125 VDC Battery Chargers AC power Fail TB8-472 2Cl and 2C2 125 VDC Battery Chargers AC power Fail New

Description:

(MD'S I 7 I 0 and I :3 I 0)

TBl-055 2Al or 2A2 125 VDC Battery Charger Trouble TB3-174 2Bl or 2B2 125 VOC Battery Charger Trouble TB8-472 2Cl or 2C2 125 VOC Battery Charger Trouble Alarm Settings The discussion below serves to discuss the rationale used in determining .the battery charger alarm settings used in the Special Test Procedure, Section 10, of this DCP.

Low Voltage Alarm The setpoint for the low voltage alarm was chosen to provide an early indication of the charger float voltage drifting below its 134 - 135 VDC setpoint. As such, a value of 132 VDC was selected which results in a range of 131 to 133 after adding a 1/2% inaccuracy and rounding to the next whole number.

High Voltage Alarm The high voltage alarm provides an early indication of an overvoltage, before the high voltage shutdown is reached.

This alarm setting was selected to be between 141 and 143 volts "(nominal 142 VDC) because the highest equalize voltage allowed by procedure is 139.8 (Reference 23).

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'j SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 High Voltage Shutdown The high voltage shutdown relay will be set to trip the AC incoming breaker when a voltage greater than 145 VDC is reached. This function is provided to shut down the charger during a malfunction of the voltage control ClrCUlt:ry.

No Charge The No Charge alarm will be set at 3 - 4 amperes output.

This setting is acceptable since Salem's operating procedures do not have any configurations where a charger will be supplying a "trickle charge" to the battery.

AC Loss of Voltage The Loss of AC relay provides an alarm indication upon loss of Incoming 230 VAC voltage.

3.3.9 Grounding The new chargers will be grounded using the same ground cables as are currently used for the existing Exide chargers. The ground cables will be connected to the new chargers to connectors supplied by C&D. C&D has provided connectors that accept wire sizes #6-250 MCM. The existing ground cable is #4/0 AWG which is within the range of the connectors provided.

3.3.10 Temporary Charger During replacement of the chargers, a temporary non-safety related charger will be connected to the batteries to maintain a float charge. The temporary charger will not degrade the batteries in any way. It is intended to assure that the batteries will be fully charged when they are returned to service.

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3.4 HVAC CONSIDERATIONS (Heat Loading)

Heat loads created by the new chargers are being provided as input for ES-50.007, "Electrical Heat Loads for Salem Unit 2, Switchgear Room, Elev. 84'-0". Heat loads (BTUs) are based on the normal operating load of the chargers since operation in the current limit mode is infrequent and of a relatively short duration. The results of the calculation are summarized below. Refer to CD E522:

New Calculated Battery Charger Heat Loads (BTU/hr.)

Switchgear Room Normal Operations 17,611]

Switchgear Room DBE Operations 14,521 These heat loads have been incorporated into S-2-CAV-MDC-0696, "Unit 2 SPAVS Cooling Load *calculation" by CD M501. The total heat load in the 480 V Switchgear Room (Elev. 84'-0") is reduced by approximately 1% during normal conditions and by approximately 1-1/2% during DBE conditions. In the 4160 V Switchgear Room (Elev. 64'-0"), there is an increase of approximately 1-1/2% during normal conditions and an increase of approximately 1% during DBE conditions. This small increase is not significant.

3.5 CIVIL/STRUCTURAL CONSIDERATIONS 3.5.1 Load Path and Rigging The load path associated involves a heaviest load of 2000 pounds {the Exide charger} transported through the Auxiliary Building Elevation 100'0" and Auxiliary Building Elevation 84'0". The live load allowance at each of these slabs is greater than the load imposed due to the transportation of the charger on a cart or a similar device and hence found acceptable.

For areas where wheel load is to travel over grating, steel plates or a pair of channels should be provided to distribute the load. The Hoist and Trolley Beam in the Auxiliary Building at the existing hatch are adequate based on their capacity of 6.0 tons as shown on PSE&G drawing number 208922, R7.

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3.5.2 Structural Floor Loading The new C&D Chargers are approximately 1700 pounds, which is less than the 2000 pound weight of the Exide chargers.

Based on a comparison of these weights and the base area of the new and existing units, the effective floor loading is reduced and is therefore acceptable.

3.5.3 Structural Foundation The analysis containing th~ mounting of the new C&D chargers is documented in CD S501/0. The new configuration and foundation bolts are determined to be adequate for the new chargers.

3.5.4 Cut Rebar The preliminary cut rebar evaluation is performed and is documented in CD S502 for potential cut of rebars assumed at locations of the anchor bolt installations.

At each location of new anchor bolts a North-South and an East-West rebar (at top mat) is assumed as being cut. Any additional reinforcements required to be cut during implementation of this change package will be evaluated, documented and approved in accordance with DE-TS.ZZ-4007 (Q), entitled "Cut Rebar Program". This technical standard establishes a systematic program to control and minimize cutting rebars, document as-built cut rebars, and evaluate the cumulative effects of the cut rebars to assure that the structural adequacy of concrete structures/block walls is not adversely affected.

3.5.5 Conduit Supports A small amount of additional weight will be added to the conduit supports for the 125 VDC cables by the cable replacement. In accordance with SC.DE-TS.ZZ-4706(Q),

"Salem *Design Analysis for New and Modified Electrical Raceway Supports Using SQUG GIP Methodology," Sections 3.5.1 and 5.2.1, only a verification walkdown is required since the conduit fill will be within the guidelines.

Calculated fill for the conduits will be approximately 30%

(See Section 3.3.4.1).

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These conduits are less than one ( 1) foot long. The supports are acceptable for the seismic loads.

3.6 SEISMIC QUALIFICATION The battery charger has been seismically qualified by the vendor for the applicable floor response. This report is documented in CD P502/0.

3.7 AL.ARA The 125 VDC Battery Chargers are located in the 460V Switchgear Room on Elevation 84'0" in the Auxiliary Building Control Area, which is a mild environment. However, the battery chargers are to be transported through a Radiological Control Area (RCA) when they are brought through the Turbine Building at Elevation 100'0" and then through the Service Building to a hatch area in the Auxiliary Building.

Radiological protection will be provided in accordance with NC.NA-AP. ZZ-0024, Radiation Protection Program. There is no adverse effect on ALARA since this DCP transports the Battery Chargers along the RCA Control Point area. No radiation exposure is expected and the General RWP will be used.

3.8 FIRE PROTECTION Installation of the chargers will require the temporary removal of several Marinite fire walls in the 460V Switchgear Room on elevation 84'0" of the Auxiliary Building for SGS Unit 2. The Marinite boards are installed to provide separation of redundant equipment per Appendix R,Section III.G.

A Fire Protection Impairment Permit will be authorized by a Nuclear Fire Protection Supervisor, in accordance with ND.FP-AP.ZZ-0010(Q),

before the walls are removed. While the walls are removed, a fire watch will be posted in accordance with NC.NA-AP.ZZ-0025(Q). Extreme care will be exercised during dismantling and reinstallation of Marinite boards. Once the wall is replaced, it will be inspected in accordance with S2.FP-SV.FBR-007l(Q) to ensure that the boards have not been damaged. Damaged Marinite walls will be replaced with new ones.

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DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 The following fire barriers will be temporarily removed during Battery Charger replacement, as required: 2-1.6, 2-1.14 and 2-1.20.

These walls are identified in S2.FP-SV.FBR-0071 (Q), Figure 1.

While it is not anticipated that any Marinite panels will be damaged during their removal and reinstallation, spare Marinite panels have been purchased. The original manufacturer of Marinite (Johns Manville) is no longer in the business and has sold the right to manufacture the product to BNZ Materials, Inc. (Refer to Attachment 4 for data sheets for the existing Marinite panels and the new BNZ Marinite panels). The BNZ Marinite panels cont:inue to be manufactured at the same facility as the Johns-Manville product using the same formulation. The data sheets provided in Attachment 4 represent typical average values for the physical and chemical properties. The slight changes in some of these properties are normal manufacturing variations. The new Marinite was evaluated by PSE&Gs Fire Protection Engineering group and found to be an acceptable replacement as a radiant heat shield. Physical strength properties and mounting will require additional review if the new panels are needed to ensure that the seismic qualification of the walls is maintained. In accordance with the BNZ product data sheets (Attachment 4), the new Marinite panels will be sealed using one coat of Sherwin-Williams Masonry Conditioner B46WZ1000 (An environmentally

safe substitute for #A5V2 which is specified on the BNZ data sheets, but is not allowed to be sold in New Jersey) . A top coat of Carboline 3350 Acrylic Latex, color Salem Buff #0855, will be applied over the masonry conditioner, in accordance with Salem coating standards.

3.9 PENETRATION SEALS Replacement of the DC cables will require that the existing penetration seals, where applicable, be removed and replaced. The Penetration Seals utilized in this DCP will be installed or repaired in accordance with Station Maintenance Department procedures and Administrative Procedure NC.NA-AP.ZZ-0025(Q). The completed seals will provide their intended function of satisfying the separation requirements of ~he barrier. Penetration Seal Work Release (PSWR) forms are provided as Attachment 12 to the Modification Instructions section for all penetrations within the scope of this DCP. The PSWR correlates the installation detail, installation procedures and qualification testing to each penetration.

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1 SECTION 3. 0 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 3 .10 COMBUSTIBLE LOADING This DCP will not add any exposed combustible loading. The combustibles in the chargers are enclosed by the charger enclosure.

Additional combustibles due to the 125 VDC cable replacement are enclosed within conduits.

3.11 PHYSICAL SIZE CONSIDERATIONS The existing Exide chargers are located at EL. 84'-00" in the 460V Switchgear room, Auxiliary Building in the SGS Unit 2. The physical dimensions of the existing Exide chargers are 60"H X 50"W X 22"D. The new C&D charger dimensions are 78"H X 48"W X 36"0. The new C&D charger is lighter (1700 lbs) than the Exide charger (2000 lbs). The chargers are arranged next to 125 VDC Switchgear as shown in MD E6/0.

The Chargers are bottom fed via floor penetrations for the 230 VAC and 125 VDC power cables. The alarm cables are routed from an overhead tray via a conduit that enters each charger from the bottom.

The new chargers will be installed approximately in the same location as the Exide chargers. They will be moved slightly to allow adequate room to open the doors and for room access. The conduits for the alarm cables will be removed to allow for this charger relocation.

The alarm cable will then be rerouted to enter the top of the 2A2, 282 and 2C2 charger through a strain relief connector. The new C&D charger physical dimensions are acceptable.

3.12 ENVIRONMENTAL CONSIDERATIONS FSAR Section 9.4.2.2.2 indicates that the design temperature in the Auxiliary.Building is 60° F to 105° F. The new chargers were specified to operate and are rated to operate in an environment from 60° F to 115° F (Reference 13) .

Engineering Evaluation S-2-EOOO-EEE-0891, "Ambient Temperature in the Salem Unit 2 Elevation 84 Switchgear Room" provided an analysis of electrical equipment in the area and its ability to withstand an ambient temperature of 115° F. An analysis was prepared by Nuclear Logistics Inc. for C&D, the charger vendor to analyze the ability of the new chargers to withstand this temperature. Reference to this analysis (PSBP 321020) will be incorporated into S-2-EOOO-EEE-0891 by CD E513.

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0

3.13 IN PLANT SEPARATION ISSUES The new battery chargers are classified safety related Class lE. The physical separation between redundant channels will not be changed by this DCP. Fire barriers (Marinite walls) that are installed between channels A, 8, C or Non-lE will be reinstalled in their existing configuration after installation of the chargers. The safety related cable routing, and therefore segregation, will not be changed by this DCP. The new chargers will be mounted in approximately the same location as the Exide chargers.

3.14 NPRDS SEARCH A search was performed of the Nuclear Plant Reliability Data System (NPRDS) as required by the Design Considerations Checklist, Item Number 12. Attached is a copy of the report obtained for C&D Battery Chargers with similar model numbers (See Attachment 1). There are not any models identified that are exactly the same model numbers as are being purchased for use at Salem. All the models in the report appear to be of smaller size. There were fourteen identified failures, five of which were assigned a severity code J (immediate). The remaining nine were assigned a severity code K (degraded). Review of the reported failures indicates that the problems appear to be random occurrences and are not indicative of a generic problem or a lack of quality in the product.

3.15 STATION BLACKOUT ANALYSIS Question 4. of The Station Blackout Checklist was checked "Yes" on the Specialty Review Checklists because this DCP modifies equipment in the 125 Volt DC system. The Station Blackout Analysis (SBO) is not affected by this modification, however, because the SBO analysis is based on DC powered devices. During a Station Blackout event the charger is assumed to be deenergized. Therefore, PSBP No. 314204, Section 7.2.2 is not affected by this modification.

The heat load calculations were reviewed. S-C-AUX-MDC-0736, Rev. 0, "Electrical Heat*Loads during Station Blackout (SBO)" shows the heat load contribution of the chargers equal to zero. Therefore, this calculation and S-C-AUX-MDC-0737, Rev. 0, "Loss of Ventilation During Station Blackout", which gets its input electrical heat loads from S-C-AUX-MDC-0736 are not affected by this modification.

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Page 32 Rev. 0 Nuclear Common Page 3 of 3 Rev. S

.I PART 1 - ENGINEERING CHANGE NO.: 2EC - 3332 FORM NC.DE-WB.ZZ-0001-8 T-MOD NO.: N/A SECTION 3.0 PACKAGE NO.: 1 DESIGN ANALYSIS (CONTINUED) CP REV. NO.: 0 3.17 LIST OF ATTACHMENTS Attachment 1: Nuclear Plant Reliability Data System (NPRDS)

Query Report Attachment 2: C&D Test Data for Battery Charger, Model ARR130H300F, Serial No. 954293 Attachment 3: DC Coordination Plot Attachment 4: Data Sheets: Marinite Boards Attachment 5: C&D Inrush Current Test Data for Battery Charger Model ARR130H300F, Serial No. PS954293 Page 33 Rev. 0 Nuclear Common Page 3 of 3 Rev. 5

"J. . .L. J 0 v ......................, ........ ~

t I a, - . J""

Facsimile Cover-Sheet C & D CHARTER POWER SYSTEMS, INC ELECTRONICS ASSEMBLY PLANT 18 INDUSTRIAL PARK RD.

DUNLAP, TN 37327 To: ~ ~ ~t'\;_:1_~_;;:-:>_ _ _ __

Company: S "'~ c:..t-..,T -'" L- ;..J,j'J Phone:

Fax: I*- 1,;,09- c;, s- -- 414-8 From: DAVID MUHLRAD Department: Engineering Phone: 615-949-4135 Fax: 615-949-3647 Date: 1~ t3 ~ r6 Pages Including this : =:;-

Comments:

~,-, D 1-\ ?cu.=::-

CHANGE NO. : 2EC-3332 PACKAGE NO. : 01 SECTION 3.0. ATTACH. 2 Page 1 of 5,

Rev. 0

U.JU l 1". lJ t'Ul't.l( lUl

.-- IARR130H300~TECHNICAL DATA l SIN I

95-4?9~1 Nom1~I I tJL' 1303008 XLS M.f-0 (~ *-j(...-.1"7) ,t.c.t-1 (\-c_ 1-1,._.

1I Line 24.o * .

DCAMPS DCVOLTS AC/\MPS .l<t,;\'A. ACWATIS DCWATIS EFFICIENCYPF !TUAiR o 1427 278 11:iso 480 o o* 0 04 1642 5 1428 2S2 11)475. 11;:>0 713 0637 0 ,1 13g2 I . --

1 10 142 6 22.7 9436 1920 1426 0.743 0.20 rnaq 20 142 5 18 7 7787 3440 2850 0 828 0.44. 2618 30 ~42s H3 7177 4000 4275 aoo*i o*e9 2343 60 142.4 25 1 10434 9840 8544 0 868 O.B4 4432 91 9 , 4J 3 41 g 17 403 1 4640 13077 0 893 0 84 5344 120 1422 581 ?.41S1 18880 17064 0904 0 781 6211 150 142 2 751 31231 2:JS.20. 21330: 0 007' il15: 7400

~75 a 2~1

- - -I 142, 89 1 31on 21200' a 91*s' 0 73; 7588 190 142 1 00 5 401 ~ 3 29280. 2t)Qgg 0 922 0.73 7801 100 1 142 1 161 8 4230:? 30880' 2~4~4/ 0 921 0 73: 8365 210 1C2~ 1008' 44395 3:'.:~80 1

~..i1 og~g/ 0 13( 0025 2..(() 142 122.5 50921 37120* 34C.80 0918 0 73: 103.97

-:.10 141 9 138, S74'.9 41750 30313 0 917 0 73 1 11789 1 - -'ii 300 141 9 153 3 63738 46080 42570 a 924 0 72, 12oo4 319.1 141 8 1628 oi859. 48980 45248 6 924 6 ni 12694 345 5 141 8 175 0 72753 53300 48002 0 918 0 73, 14939 HIGH LINE 264 0C AMPS DC vo1 rs AC AMPS AC vi! AC *:.ATTS OC WATIS EFFIC::IE.1£Y PF 0 142 8 ig 4 131128 ')60 0 0 0:0 0 04' 1915 1

5 j 4:2 ,* 28 8 122t39 1360 7'3.5 G 525 1 J.11 2211 10 142 7 24 ~ ~ 1 081 2240 1427 0 637. 0 20: 2780 20 142 7 19 8 0033 3800 2854 0.793' 0 401 2551 30 142. 7 17 G 001: s12o 42s1 oa38 9.~~i 2889 60 142 5 24.4 11157 W20 8550 a 862 0 BQi 4685 92 142 5 409 18701 15040 13110; 0.872, 0 BQj IJ001 1/0 , 4:? 4 57, :;o124 18880 nooe.: ooc.s* 0 72: Et129 I 1~ 14:2 3 74 t3 34111 23680 2i 345 0 001 : 0 59; 700e I 11e 190, 142 3 139.0 40710 44338:

21~20*

29760 25045 27032 0 910*

0.008 0 68; 0.6/:

8465 l:l329 142 2 97 0 6?i I'

200

.210 142 3

"'.42 ~

102 2 107 5 467 i5 4916S 31200 32800 2SA60

~a.;)

O 912 0 910 0

0 67:I 9371 10048 I 240 142 1 123 1 ~'272 37280 34104 0 915 0 681 10862 l 270 142 ~ 140 2 '.'4 ioe 41920 3836-;' 0 915 0 65 1215~

l -

300 2 319 3

'.\45 6 142 142 142 1 154 6 1&4 e 178. 1

oog1

-5278 81421 40720 49680 53920 42650 45341 49Q75 a 913 0 913 0 910 o.66 0 00 0 00*

' 138Q1 14841 10500 CHANGE NO. : 2EC-3332 PACKAGE NO.: 01

~* SECTION 3.0. ATTACH. 2 Page 2 of 5, Rev. 0 Page 1

v* . ~ o\l ~. U* 0 .. .) O*O J0;1

'- "' " 'v'~Lr. '-'-'" ~ VV.J 4

1303008 XLS

r --..

I LOv.* LINE 212 DC .1.J.CPS 10 0

~

DC VOLTS 142.5 14?. 4

'. 42 :i AC AMPS 24.8

// R

/()~

AC VA 9100 M311 7456 AC W.ATTS 320 1040' 1760

oc W£TTS o.o.

712 0 1423 0 EFF!CIE~*PF 0.000 0 685 0 809 0.04 013 0 24 Bnlll-lR 1~

1122 1153

.;::{) 142.3 17 7 64.'3! 3:..?t!U ' 2t!~ u 0 ,lj$tJ O S1 f484 30 142 2 17 5 6426 4960 4266.0 0 860 0 77 2373 60 : 42 1 210 9002 0080 8526.0 0 881 :J 98 3947 01 8 1'2 43 8 1~5 1 44._"()' 13035 6 0 905 0 88 4666

,~ 141 9 597 21921 18560 17028.0 0 917 '.JBS 5*239 150 1 41 8 75 6 27771 232'00' 21270 0 c 917 0 84, 6601 115.5 I 41 8 888 3261!:! 26880 24885.9 0 1?26' 0.82* 6820 192 141 8 97 6 35825 29380 :27225 8 0927 0 82' i3o6 XO 2'10 141 141 A

i 101 9 107 1

~7428 39325 3ci48C 32COJ' 28360

Z9.'51.0

o. a93a: 0 81 1 nso 0 930 0 81 1671 223 '141 .1 ~ 13 e A 1712 33920 31599 1 0 932' 0 81 793*7 244 e 141 fj 123 6 45272 37120 346.35. 4 0 933. .J 82. 6'197 CHANGE NO. : 2EC-3332 PACKAGE NO.: 01 SECTION 3.0. ATTACH. 2 Page 3 of 5, Rev. 0 Page 2

. .. 1 J030CX: XLS I e-<".J M.[0 (Ce. - J (.-qi) E. ... C..1-\ /\L Li~~

[ARR130H3GOF TEChNiCAi.. DATA lS.'N 954793 Nominoil Line 24o : I 0C Al.CPS OC l/Ol TS AC Al.l?S AC VA ACWAns DC WATTS EFFICIENCY Pf BTU/HR 0 135.4 27 5 11417 480 0 0 0 04, 1642 51 135 4 24.B 10295 900 89054 0. 719 0 09 92"2 10 1 135 4 22., 9173 1760 1367 54 0 777 0.19 1342 20 135 4 18 , 7:-10 3200 2708 0 846 0 43 1883 29 6 135 -4 H3 4 5817 <:800 4007M Q 835 0 70: 2709

&> 135 3 24' 2 10073 9440 8118 0 860 r. 94 4521 00 n.'5 7 40.0* 16813 13000 12108 0.895 c 821 4007

20* 135 1 S7 2 23m 100'.X)* 18212 0 901 0 76' 8115 150 135.1' 74_7! 31037 22320, 20265

-*****I 0 908 I 0.7.2, 7028 180 135 ~1 3 37oos* 26720: 24300 0 OCJ9, 0 70 8276 190 135 9e.5 40127 280:)). 25650 0 916 0 701 8037 200 135 101 7 42289 29<<9, 21tiiJ" 0 917 0 70 8345 210 134 g 107, <:4505' 30880 28329 0 9f7 669"" 8724

~40 135 122 7 51018 35360. 32400 0 916 0 69 1o"i23 2io 134 8 ~38 5 57558 3-.0840 1

384:?::1 0 ~1A 0 68 11688 300 U48 ~54 0 1)4029 44150 40440 0 916 c 69 12TD.

320 13.4 !i 1t)3 9 $8144. 47200; 431381 0 914 i 0 69 *,3899 HIGH LINE 284 I - I

- I DCAMI'!; oc './OL rs AC AJ.l;>S AC VA AC WAITS ,OC WAH$ :tH'IC~E~)';~F 1BTU'HR 0 135 8 29 3 13382 5601 o* O.CXXJ' 004, 1~15 5 135 7' 28 7 12224 1280 679 0 530 0 10 1 2057 1C

135 7, 24 0 :OG89 2ooc* "1:3i1 0 685 0 ~ 8.

I 2153 20 135 6 19.5 8932 3360 2712 0 &J7 0 38: 2216 29.6 135.6 17 .2 788C 4800 1 4()14 0 83tJ 0 611 2689 80 135.5 23.9 1092.E 9600, 8130 0.847 0 s.a' 502.7 go , 3.5 4 3'l 4 100)'.J'. 139Xl* 12186 0.875 0 77 5930 120 135 4 ~.6 25895 18:240: 16248 1 0.891' 0 70 6813 150 13.5 3 14., 33882 22500 1 20295

-****I 090J 067 tt48 180 13.5 3 91 2 41716 2764o 24354 0.901 Q 65 9188 190 135 3 96.6 4.4170 28320 25707 0.908 0 6-4 8938 200 135 2 102 1 46670 29920 27040' 0 904 064' 9850 210 2 135 2 107 4 49093 21300 28-4~9 0 906 064 10058

~40 ~ 35 2 122.9 56196 35680 j24~i3 u OCl9 :: 63 11053 270 135 1 138 7 63405 40320 36477 0 9(1'1 ~ f>-4 1::\143

~ ~35 1 i54.8 70675 44040 40~:30 0 908 c 63 14056 3LU ~ 35 165.4' 75629 47520 43200 cg~ c 63 14774 CHANGE NO. : 2EC-3332 PACKAGE NO. : 01 SECTION 3.0. ATTACH. 2 Page 4 of 5, Rev. 0 Page 1

13C:JOOC XLS

LOW LINE 212

. oc AMPS o

1 (l DC VOL TS 1355 135.d 135 4 Ar. AMPS 24s 22.2 1g ~

AC VA.

Yn8 8139[

73lJ7

)C WATTS 320**

10401 1 760 oc WAns

a-a*

5/1 0 1354 0 EPF*CJENCY,!>f o.ooo; 0.651 0 769

d. °";

0 13i 0 241 l'!Tl-*il\

T004 1241 138.9 20 1 135.3 16 9 5205 3040' 2719 5 0 89G 0.49. 1096 29 i 135.2 16 s ~ 4640. 40154 b"885 0 77 =ff36 60 135.~ 261 9571 9280 81120 0874 0 97 3995 90 1 135 1 42 1 15471 13440 12172.3 0 906 0 87 4335 120 135 59.4* 21823 17~0 16200.0- 0 908 0 82 ~

150 1349 756 277';.g l:...'ll&J' :202350 0916 c 80 6310 180.d 13.4.8 91.2 33475 ~6400* 243179 0921 0 79 7121 100 134.8 962 J5335 27760 25612.0 0923" a ia: T346 200 134 a 101 s 31294 292ao 2e-ooo.o o 921 0 71'.~ I 7g34 210 134 8 100 g 39240 30720 1 28300 0 0 921

0.78 8249 225 134.' 114£3 42155 3WOO; 303075. 0924 0 78 I 8.5:4 240 1'.54~ 1223 .!4907 3..:900 323280 G925 D 78, OCXJ1 l* ~ecoraed v3/ue WG!S 560' b:Jt QrYeS 15:)% e'f1c1e.'lcy }__ ________

CHANGE NO. : 2EC-3332 PACKAGE NO.: 01 SECTION 3.0. ATTACH. 2

( Page 5 of 5, Rev. 0 Page 2

125vdc Battery Charger TS Change

Answer To Question No.-1 Previous revision of charger calculation was prepared based on actual loading data of charger collected from field measurement.

Charger loading data was collected over a period of two months when units were at 100% reactor power.

Out of 20 measurements performed during this period, the worst case loading was seen in Channel-A Battery Charger and the measured reading was 101 Amps.

Answer To Question No.-2 Noncontinuou~ loads as mentioned in A-946 and as defined in Section 4.2.2, A-485 are not connected directly to DC Bus. For example, communication system power supplies and fire protection systems are connected to inverters for which AC power is the primary source.

'l Following is a list of major loads connected to~Bus and a~

explanation related to charger loading:

a) Various Inverters Normal feed for these inverters is (vital, computer etc.) AC supply. Therefore, is not a load on the charger.

~Jc.q vs (k+-...-eJ .

b) Emergency LTG. Inv This load is being considered as u_.ct .e--Jf-: ._;_ fto ~ continuous load to the charger in the calculation ..

c) Various Switchgear Per Sect. 4.2.3, A-485, Control Bus. _}, µ. 8,t.Ji 1-*,,._~Switchgear operations are

r. L: ;_!-' t~i, J,,_c

u 0~

("'

consi* d ere d as momentary 1 oa d s.

- yt: Jo,*Y' -

d) 125vdc Distribution Various control circuits are Cabinets. fed from these cabinets. Loads are essentially a combination of SVs, relays & lights. Load for all control circuits in the calculation were developed by evaluating the operating status of all connected components. This process established a conservative, yet practical combination of continuous and noncontinuous loads.

Distribution Cabinet Loads are being considered as continuous load to the charger in the calculation.

J . ',

If you have any questions on any of the enclosed material please

call me at (609) 339-1176.

Thank you, Gil Johnson

\

The attached excerpt from ES-4.003(Q) uses input from ES-4.006 to

determine bus loading. The column "NORM LOAD" reflects the non-transient loads on the battery charger with the battery at full charge. Following a design basis discharge event approximately 43 amps is added to the "NORM LOAD" to recharge the battery (for a total of approximately 161 amps in the worst case) . The 43 amps is sufficient to recharge the battery fully from the design minimum charge within 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . The design minimum charge is expected to occur following a Station Blackout Event. Design minimum charge is not expected to occur following a LOCA.

In reality, there should be approximately 72 amps available to recharge the battery which means the recharge time will be approximately 18 hours2.083333e-4 days 0.005 hours 2.97619e-5 weeks 6.849e-6 months .

\

FORM NC.DE-AP.ZZ-0002-1 Cover Sheet

~., -- CALCULATION COVER SHEET Page 1 of 2 CALC. NO.: ES- 4.003(0) REVISION: ~1-

,.~ .c. TITLE: 125 Volt DC Short Circuit and Svstem Voltage Drop Calclation p~ ;X 1j18)o/~ .

.(CALC): ~,,.2"7' ATTACHMENTS: #/TOTAL SHTS.:. ( }/fif/ TOTAL SHTS.: ;2/6 CHECK ONE: INTERIM (Proposed Plant Change) D VOID FINAL (Supports Installed Condition)

DESCRIPTION OF REVISION: Refer to Revision Summary on Page I of the calcu~~t e scope of the revision. .*

REASON FOR REVISION: This calculation revision supersedes Revis(SQQ~~~calculation in its entirety. The detailed component.

analysis that was included in Rev. 0 has been omitted and is now contained'n~alculation ES-4.006(Q). This revision incorporates the

PSE&G DCPs listed in calculation ES4.006(Q).

HOPE CREEK 0Q Q - LIST (SALEM) ? ~ YES Uv!PORT ANT TO SAFETY ? ~YES FUTURE CONFIRMATION REQUIRED ? D YES OTHER DOCUMENTS AFFECTED? (CBDs, FSAR etc.): YES; CBD: DE-CB.125-0018(0). Rev. 3 i N PROCEDURES Uv!PACTED? ("NIA" FOR CALCS RELATED TO DCP) \'St.~ ~\C" C"t\\.

~ YES OR UNSURE D NO D N/A n~~a

~~\)~\

- If"YES OR UNSURE", has System Engineer bl!en contacted? ~ ~~ \\iQ NO

\

- If"YES" or "NO", has pertinent descriptive information been transmitted to System Engineer/Single Point Contact?

(transmittal required if System Engineer not contacted) ~ YES D NO

~ ~.lfftft:.

ORIGINATOR/COMPANY NAME: A. Paras IS. V. Sulkar - Sargent&Lundy 1/13/96 1\Tsojan /~tgent&Lundy Date PEER REVIEWER/COMPANY NAME: 1/13/96 7~!.'!)~~~ Date VERIFIER/COMPANY NAME: P. tr/ e/CJ Ye h/h1dt - Serr:/ t! '7 / f J t..-tn./y- l/!'6/96 Date

'-/ Ar REVIE\VED:~~~~~~,...-~~~~~~~~~~~~~~~~~~-

APPROVED:~----C)L-~--~-------------~/_ _ _ __

Contractor Supervisor 1f/2///C:-

PSE&G Supervisor Date If the calculation is either Q-List, Q, Qs, Qsh, F, R, or Important to Safety YES", completion of the

(' *ification

. for. Design Verification (Form NC.DE-AP.ZZ-0010-1) is required.

.Common Revision 4

I PSE&G SALEM NGS UNIT N0.1 1A-12SVDC BAITERY SYSTEM LOAD PROFILE CALCULATION

SUMMARY

I * .;

1 *~ Jan-~

1A-12S VOLT DC BUS Conductor Temperature (Deg. CJ= SS Factor- 1.116 Cable Cable Cable Cable 2 3 6 7 9 J No!es Load Rated Voltage (Volt)= 12S Size Resist Length Res. I and Battery Terminal Voltage (Volt)= Note9 At 25 C At (deg C) NORM LOCA LOCA LOCA LOCA SBO SBO SBO SBO Cornn ents Reference Breaker Cable (OHMS/ LOAD Item No. Load Description Drawing Number Number (AWG) 1000') (FEET] (OHMS) 0-1 1-30 30-60 60-120 0-1 1-30 30-239 239-240 oooooo-0000** oooo*o*o*oooo**ooooooo**oo*oo****-****000000*-***-o**Ho ooooooooo--0000**-*ooooo OO**o*** ooooooooo oo***oooooooo-ooo*ooo- oooooo-*0000000 ooooooooooooooo ooooooo***Oooooo ooooooooooo-ooo-00 Battery Internal Resistance 0.006 121.66 604.23 292.4S 293.50 293.SO S79.77 294.07 208.44 249.62 0 Battery 1A Cable 2-SOOMCM 0.011 25 0.001 121 66 604.23 292.4S 293.SO 29350 579.77 294.07 208.44 249.62 6, 11 1 #1 COMPUTER INVERTER (10 KVA) 211368B9511 1ADC1 1ADC1-AT 350MCM 0.032 185 0.013 0.00 86.S7 86.57 86.57 86.S7 86.57 66.S7 0.00 0.00 2 FUTURE 1ADC2 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 #1A VITAL INSTR INVTR (10 KVA) 218681 A6916 1ADC3 1ADC3-AT 3SOMCM 0 032 52 0.004 0.00 62.S7 82.57 82.57 62.S7 83.1S 83.1S 83.1S 83.15 4 SPARE 1ADC4 0.000 0 0.000 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 0.00 5 #1A1 BATIERYCHARGER PSBP 123894 1ADC5 1ADC5-AT 210 0.064 15 0.003 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 2 6 #1 A2 BATIERY CHARGER PSBP 123893 1ADC6 1ADC6-AT 210 0.064 15 0.003 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 7 FUTURE 1ADC7 0.000 0 0.000 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 8 FUTURE 1ADC8 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 9 PRESS HTR 1EP 211332A8859 1ADC9 1ADC9-HT #2 0.169 170 0.064 0.12 10 12 0.12 0.12 0.12 0.12 0.12 0.12 0.12 10 1 F 460V BUS CTL / 211330A8859 1ADC10 1ADC10-FT #2 0.169 3S4 0.133 2.63 22.92 1.62 1.62 1.62 22.92 1.62 1.62 1.62 11 SPDS COMPUTER INTRF RACK A 601300A1315 1ADC11 1ADC11-AT #14 2 730 181 1.103 0.00 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 12 1F 4160V BUS CTL 222792AB3666 1ADC12 1ADC12-AT #2 0.169 324 0.122 0.81 19.07 1.05 1.05 1.05 19.07 1.0S 1.05 1.0S 13 1H 4160V BUS CTL 222791 AB3666 1ADC13 1ADC13-AT #2 0.169 366 0.138 091 2S.18 1.12 1.12 1.12 2S.16 1.12 1.12 1.12 14 FUTURE 1ADC14 0.000 0 0.000 000 0.00 0.00 000 0.00 0.00 0.00 0.00 0.00 15 1CW 460V BUS CTL 221411B9S4S 1ADC1S 1ADC15-FT #2 0169 1362 0.S14 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63 0.63 16 SPARE 1ADC16 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17 GROUND DETECTION 203529A1236 1ADC17 1ADC17-HT #14 2.730 1SO 0.914 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 4 16 UV RELAY & VOLTM 203529A 1236 1ADC18 1ADC17-HT #14 2.730 1SO 0.914 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 19 1AADC-12SVDC DISTR CAB

' 221408B9S45 1ADC19 1ADC19-AT #2 0.169 140 0.059 15 71 / 64.64 16.26 17.62 17.62 67.66 17.S1 16.46 60.69 I 11 20 (1 BBDC DISTRIBUTION CAB - EMER) 221409B954S 1ADC20 1ADC20-AT #2 0.169 96 0.036 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 3 21 SPARE 1ADC21 0.000 0 0.000 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 o.oo I 22 13KV GR "A" PNL BD 219436AB3655 1ADC22 1ADC22-HT #2 0.169 1096 0.413 1.06 1.06 1.06 1.06 1.06 1.06 1.06' 1.06 o.oo I 23 GROUND DETECTION 211342A8859 1ADC23 1ADC23-HT #14 2 730 30 0.163 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 4 24 #11 !:MERG LTG INVTR / 218662A6916 1ADC24 1ADC24-AT #2 0.169 60. 0.034 !!LJ_5_ 8715 87.1S 87.1S 8715 87.1S 87.15 87.15 87.15 I 11 25 1ADC-125VDC DISTR CAB 20309SB9S02 1ADC25 1ADC25-AT #2 0.169 S2 0.022 9.60 46.93 11.00 10.49 10 49 46.44 10.49 10.49 10.49 I 11 26 (1 BOC DISTRIBUTION CAB - EMER) 203096B9502 1ADC26 1ADC26-AT #2 0.169 138 0.0S2 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 ooo I 3 27 SPARE 1ADC27 0.000 0 0.000 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 o.oo I 26 FUTURE 1ADC26 0.000 0 0.000 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 29 1 E 460V BUS CTL 211329A6859 1ADC29 1ADC29-HT #2 0.169 90 0.036 0.72 40.64 o.59 0.59 0.59 20.97 0.89 0.89 0.69 12 30 1A 4160V VITAL BUS CTL / 203076AB3653 1ADC30 1ADC30-AT #2 0.169 120 0.045 1.56 ~ 2S.77 1.77 1.77 1.77 2S.77 1.77 1.77 1.77 31 (1B4160 V VITAL BUS - EMER) 203076AB3653 1ADC31 1ADC31-AT #2 0.169 92 0.03S 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 0.00 3 32 SPARE 1ADC32 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 33 FUTURE 1ADC33 0.000 0 0.000 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 34 FUTURE 1ADC34 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 35 1A 460V VITAL BUS CTL 211325B9463 1ADC35 1ADC35-AT #2 0.169 106 0.04S 0.76 90.76 0.94 0.94 0.94 91.06 094 0.94 0.94 11 36 (1B 460 V VITAL BUS -EMER) 211326B9483 1ADC36 1ADC36-AT #2 0 169 67 0.033 0.00 0 00 0.00 0.00 0.00 000 0.00 0.00 0.00 3 37 SPARE 1ADC37 0000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38 FUTURE 1ADC38 0.000 0 0.000 0.00 0.00 0.00 000 000 0.00 0.00 0.00 0.00

- * * * * * * * * * * * * ****H********** --------- --************ ***-*******-** ********-****** - - - - - - -----*-*** *******--*****

Total Current= 121.66 604.23 292.45 293.50 293.50 579.77 294.07 206.44 249.62 NOTES. See Page 1.

1A125VDC.XLS CALCULATION ES-4.003(Q), Rev. 1 - ATTACHMENT 1A-1 PAGE 2OF10

.. /

PSE&G SALEM NGS UNIT N0.1 1B-125VDC BATIERY SYSTEM LOAD PROFILE CALCULATION

SUMMARY

13-Jan-96 1B-125 voe BUS Conductor Temperature (Deg. C)= 55 Factor= 1.116 Cable Cable Cable Cable 2 3 4 5 6 7 8 9.00 I Notes Load Rated Voltage (Volt)= 125 Size Resist. Length Res. I and Battery Terminal Voltage (Volt)= Note 9 At25C At (deg C) NORM LOCA LOCA LOCA LOCA SBO SBO SBO SBO Comments Reference Breaker Cable (OHMS/ 55.000 OPER Item No Load Description Drawing Number Number (AWG) 1000') (FEET) (OHMS) 0-1 1-30 30-60 60-120 0-1 1-30 30-239 239-240 1 Battery Internal Resistance 0.006 114.84 606.63 265.24 266.69 286.69 584.90 273.82 273.77 315.89 2 Battery 1B Cable 2-500MCM 0.011 25 0.001 114.84 606.63 265.24 266.69 266.69 584.90 273.82 273.77 315.89 6, 13 3 FUTURE 1BDC1 0.000 0 0.000 4 FUTURE 1BDC2 0.000 0 0.000 5 #1B VITAL INST INVTR (10 KVA) 218681A8918 1BDC3 1BDC3-BT 350MCM 0.032 80 0.006 0.00 86.05 86.05 86.05 86.05 85.22 85.22 85.22 85.22 6 #10 VITAL INST INVTR (10 KVA) 218681A8918 1BDC4 1BDC4-DT 350MCM 0.032 66 0.005 0.00 69.95 69.95 69.95 69.95 69.95 69.95 69.95 69.95 7 #1B1 BATIERYCHARGER PSBP 123894 1BDC5 1BDC5-BT 210 0.084 15 0.003 2 8 #1 B2 BATTERY CHARGER PSBP 123893 1BDC6 1BDC6-B"T 210 0.084 15 0.003 2 9 FUTURE 1BDC7 0.000 0 0.000 10 FUTURE 1BDC8 0.000 0 0.000 11 PRESS HTR 1 GP 211333A8859 1BDC9 1BDC9-ET #2 0.169 130 0.049 0.13 10.13 0.13 o.13 o.13 0.13 0.13 o.13 0.13 I 12 1H 460 V BUS CTL 211328A8859 1BDC10 1BDC10-ET #2 0.169 334 0.132 2.91 41.96 1.96 1.96 1.96 41.96 1.96 1.96 1.96 I 14 13 SPDS COMPUTER INTRF RACK B 601302A1315 1BDC11 1BDC11-BT #i4 2.730 47 0.286 I 4 14 1G 4160 V BUS CTL 222792AB366 1BDC12 1BDC12-BT #2 0.169 292 0.110 0.88 19.13 1.07 1.01 1.07 19.13 1.01 1.01 1.01 I 15 1E 4160 V BUS CTL 222791AB366 1BDC13 1BDC13-BT #2 0.169 340 0.128 0.44 16.55 o.53 o.53 o.53 18.55 o.53 o.53 o.53 I 16 FUTURE 1BDC14 0.000 0 0.000 I 17 (2CW 460 V BUS EMER) 221412A9545 1BDC15 1BDC15-GT #2 0.169 1410 0.532 I 3 18 FUTURE 1BDC16 0.000 0 0.000 I

19 GROUND DETECTION 203529A 1236 1BDC17 1BDC17-ET #14 2.730 211 1.285 I 4 20 UV RELAY & VOLTM 203529A1236 1BDC18 1BDC17-ET #14 2.730 211 1.285 J 4 21 (1AADC DISTRIBUTION CAB - EMER) 221408B9545 1BDC19 1BDC19-BT #2 0.169 125 0.047 I 3 22 1BBDC-125VDC DISTR CAB 221409B9545 1BDC20 1BDC20-BT #2 0.169 140 0.059 18.20 61.51 11.47 13.03 13.03 67.oo 17.34 17.48 59 71 I 13 23 (1CCDC DISTRIBUTION CAB - EMER) 22141 OB9545 1BDC21 1BDC21-DT #2 0.169 75 0.028 I 3 24 SPARE 508737 1BDC22 1BDC22-ET #2 0.169 124 0.047 I 25 GROUND DETECTION 211343A8859 1BDC23 1BDC23-ET #14 2.730 30 0.183 I 4 26 #12 EMERG LTG INVTR 218682A8918 1 BDC24 1BDC24-BT #2 0.169 80 0.034 65.94 65.94 65.94 65.94 65.94 65.94 65.94 85.94 65.94 I 13 27 (1ADC DISTRIBUTION CAB - EMER) 203095B9502 1BDC25 1BDC25-BT #2 0.169 56 0.021 I 3 28 1BDC-125VDC DISTR CAB 203096B9502 1BDC26 1BDC26-BT #2 0.169 130 0.051 1.75 38.64 2.46 2.44 2.44 38.73 2.46 2.44 2 48 I 14 29 (1 CDC DISTRIBUTION CAB - EMER) 203097B9502 1BDC27 1BDC27-DT 2-#2Jp 0.085 29 0.005 I 3 30 1DDC-125VDC DISTR CAB 203098B9502 1BDC28 1BDC28-DT #2 0.169 117 0.046 21.36 20.95 22.03 21.94 21.94 24.20 25.27 25.10 25.10 I 14 31 1G 460V BUS CTL 211331A8859 1BDC29 1BDC29-GT #2 0.169 52 0.021 0.72 40.64 o.59 o.59 o.59 20.91 o.89 o.89 o.89 I 14 32 (1A 4160V VITAL BUS- EMER) 203076AB365 1BDC30 1BDC30-BT #2 0.169 158 0.060 I 3 33 1B 4160V VITAL BUS CTL 203076AB365 1BDC31 1BDC31-BT #2 0.169 110 0.044 1.63 31.81 1.61 1.81 1.81 31.81 1.81 1.81 1.81 I 14 34 (1C 4160V VITAL BUS- EMER) 203076AB365 1 BDC32 1BDC32-DT #2 0.169 70 0.026 I 3 35 FUTURE 1BDC33 0.000 0 0000 I 36 FUTURE 1BDC34 0.000 0 0.000 I 37 (1 A 460V VITAL BUS - EMER) 211325B9483 1BDC35 1BDC35-BT #2 0.169 170 0.064 I 3 38 1B 460V VITAL BUS CTL 211326B9483 1BDC36 1BDC36-BT #2 0.169 102 0.043 o.88 101.37 1.25 1.25 1.25 101.37 1.25 1.25 1.11 I 13 39 (1C 460V VITAL BUS-EMER) 211327B9483 1BDC37 1BDC37-DT #2 0.169 80 0.030 I 3 40 FUTURE 1BDC38 0.000 0 0.000 I

---*------- ------- -------- ---------- ----------- ------- ---- ------- I Total Current= 114.84 606.63 265.24 266.89 266.69 584.90 273.82 273.77 315.89 I NOTES: See Page 1.

18125VDC.XLS Calculatlon ES-4.003(0), Rev.1 - Attachment 18-1 PAGE 2OF16

) '

1:

PSE&G SALEM NGS UNIT N0.1 1C-125VDC BATIERY SYSTEM LOAD PROFILE CALCULATION

SUMMARY

13-Jan-96 1C. 125 voe BUS Conductor Temperature (Deg. C)= 55 Factor= 1.116 Cable Cable Cable Cable 3 5 7 8 9 I Notes Load Rated Voltage (Volt)= 125 Size Resist Length Res. I and Battery Terminal V (Volt)= NOTE9 At25 C At (deg C NORM LOCA LOCA LOCA LOCA SBO SBO SBO SBO Comments Reference Breaker Cable (OHMS/ 55.000 LOAD Item No Load Description Drawing Number Number (AWG) 1000') (FEE1) (OHMS) 0-1 1-30 30-60 60-120 0-1 1-30 30-239 239-240 00 Battery Internal Resistance 0.006 75.46 533.45 355.82 355.75 355.75 536.80 357.92 320.19 382.38 0 Battery 1C Cable 2-500MCM 0.011 36 0.001 75.46 533.45 355.82 355.75 355.75 536.80 357.92 320.19 6 13 382.38

11 & 12 STA ESSENTIAL CTL INVTR 218682A8918 1CDC1 1CDC1-CT 210 0.084 37 0.008 0.00 173.90 173.90 173.90 173.90 170.75 170.75 170.75 170.75 13 SPARE 1CDC2 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 #1 C VITAL INST INVTR 218681A8918 1CDC3 1CDC3-CT 210 0.084 72 0.014 0.00 79 37 79.37 79.37 79.37 79.21 79.21 79.21 14 79.21 4 ALT SHUTDOWN DIST PNL 1ASDS 249552B9849 1CDC4 1CDC4-CT 210 0.084 38 0.007 0.02 37.80 37.80 37.80 37.80 37.80 37.80 0.00 0.00 5 #1C1 BATIERYCHARGER PSBP 123894 1CDC5 1CDC5-CT 210 0.084 20 0.004 0.00 0."Q 0.00 0.00 0.00 0.00 0.00 0.00 2 0.00 6 #1 C2 BATIERY CHARGER PSBP 123893 1CDC6 1CDC6-C'T 210 0.084* . 20 0.038 0.00 0.lJO 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 7 FUTURE 1CDC7 0.000 0 0.000 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 8 FUTURE 1CDC8 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 9 FUTURE 1CDC9 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10 FUTURE 1CDC10 0.000 0 0.00 11 #13 EMERG LTG INV TR 218682A8918 1CDC11 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 1CDC11-CT #2 0.169 55 0.021 29.68 29.68 29.68 29.68 29.68 29.68 29.68 29.68 29.68 I 12 SPARE 1CDC12 0.000 0 0.000 0.00 13 SPARE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 1CDC13 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 14 FUTURE 1CDC14 0.000 0 0.000 0.00 15 FUTURE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 1CDC15 0.000 0 0.000 0.00 000 0.00 0.00 0 00 0.00 0.00 0.00 o.oo I 16 SPARE 1CDC16 0.000 0 0000 17 GROUND DETECTION 203549A 1375 1CDC17 1CDC17-FT 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I

14 2.730 162 0.987 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 4 18 UV RELAY & VOLTM 203549A 1375 1CDC18 1CDC17-FT #14 2.730 162 0.987 19 FUTURE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ooo I 4 1CDC19 0000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 20 SPARE 1CDC20 0.000 0 0.000 21 1CCDC-125VDC DISTR CAB 221410B9545 1CDC21 1CDC21-CT 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I

2 0.169 90 0.038 30.01 67.15 19.18 19.18 19.18 73.73 24.59 24.73 66.92 I 13 22 1CDCDG-125VDC DISTR CAB-EMER 252500B9940 1CDC22 1COC22-CT #2 0.169 380 0.136 0.00 GROUND DETECTION 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 23 220837A891 1CDC23 1CDC23-FT #14 2.730 50 0.305 0.00 24 FUTURE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ooo I 4 1CDC24 0.000 0 0.000 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 25 FUTURE 1CDC25 0.000 0 0.000 0.00 26 FUTURE 0.00 0.00 0.00 0.00 000 0.00 0.00 o.oo I 1CDC26 0.000 0 0.000 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 ooo I 27 1CDC-125VDC DISTR CAB 203097B9502 1CDC27 1CDC27-CT 2-#2 /p 0.085 65 0.013 12.78 12.27 12.74 12.67 12 67 12.36 12.74 14 12.67 12.67 28 (1 DOC DISTRIBUTION CAB - EMER) 20309889502 1CDC28 1CDC28-CT #2 0.169 110 0.041 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 0.00 29 FUTURE 1CDC29 0.000 0 0.000 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 30 SPARE 1CDC30 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 31 SPDS COMPUTER INTRF RACK C 601304A1315 1CDC31 1CDC31-CT #14 2.730 63 0.384 0.00 0.00 0.00 0.00 000 0.00 0.00 4 000 0.00 32 1C-4160V VITAL BUS 203076AB3653 1CDC32 1CDC32-CT #2 0.169 87 0.034 1.44 31.59 1.59 1.59 1.59 31.59 14 1.59 1.59 1.59 33 FUTURE 1CDC33 0.000 0 0.000 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 34 FUTURE 1CDC34 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 35 FUTURE 1CDC35 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 36 FUTURE 1CDC36 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37 1C-460V VITAL BUS 211327B9483 1CDC37 1CDC37-CT #2 0.169 101 0.043 1.53 101.68 1.56 1.56 1.58 101.68 1.56 1.56 1.56 13 38 FUTURE 1CDC38 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total Current= 75.46 533.45 355.82 355.75 355.75 536.80 357.92 320.19 362.38 NOTES: See Page 1.

1C125VDC.XLS PAGE 2OF16 Calculation ES-4.003(Q)

Rev. 1 Attachment 1C-1

PSE&G SALEM NGS UNIT N0.2 2A-125 VOLT DC BUS (DWG 220800-A-9188-4) 2A-125VDC BATIERY SYSTEM LOAD PROFILE CALCULATION

SUMMARY

)

13-Jan-96 Conductor Temperature (Deg. C)= 55 Factor= 1.116 Cable Cable Cable Cable 2 3 4 5 6 7 8 9 I Notes Load Rated Voltage (Volt)= 125 Size Resist. Length Res. I and Battery Terminal Voltage (Volt)= 1-25 At25C At (deg C) NORM LOCA LOCA LOCA LOCA SBO SBO SBO SBO I Comments Reference Breaker Cable (OHMS/ LOAD I Item No Load Description Drawing Number Number (AWG) 1000') (FEET) (OHMS) 0-1 1-30 30-60 60-120 0-1 1-30 30-239 239-240 I 00 Battery Internal Resistance 0 0.006 87.81 546.96 264.83 285.87 265.87 510.83 254.47 168.84 211.01 I 0 Battery 2A Cable 2-500MCMlp 0.011 25 0.001 87.81 546.96 264.83 265.67 265.67 510.63 254.47 166.84 211.01 I 8, 12 1 #2 COMPUTER INVERTER (10 KVA) 21136699511 2ADC1 2ADC1-AT 2/0AWG 0.084 200 0.040 0.00 86.57 86.57 88.57 86.57 66.57 68.57 0.00 o.oo I 12 FUTURE 2ADC2 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2

2A VITAL INSTR BUS INVTR(10 KVA) 218881A8918 2ADC3 2ADC3-AT 2JOAWG 0.084 55 0.010 0.00 67.83 87.83 67.83 87.63 76.39 76.39 76.39 78.39 3

SPARE 2ADC4 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 000 4

2A1 BATIERY CHARGER PSBP 123894 2ADC5 2ADC5-AT 2JOAWG 0.084 25 0.005 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 5

2A2 BATIERY CHARGER PSBP 123893 2ADC6 2ADC6-AT 2/0AWG 0.084 25 0.005 0.00 0.00 0.00 0.00 0.00 0.00 000 000 0.00 2 6

7 FUTURE 2ADC7 0.000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 8 FUTURE 2ADC6 0.000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2EP PRESS HTR 218690A8918 2ADC9 2ADC9-HT #2AWG 0.169 160 0.060 0.12 10.12 0.12 0.12 0.12 0.12 0.12 0.12 0.12 9

10 2F 460V BUS CTL 218688A8918 2ADC10 2ADC10-FT #2AWG 0.169 318 0.120 1.11 10.84 0.84 0.84 0.84 10.84 0.84 0.84 0.84 /

11 SPDS COMP INTER RACK A 600898 2ADC11 2ADC11-AT #14AWG 2.730 121 0.737 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12 2F 4160V BUS CTL 222792AB3666 2ADC12 2ADC12-AT #2AWG 0.169 402 0.152 0.81 *19.07 1.05 1.05 1.05 19.07 1.05 1.05 1.05 13 2H 4160V BUS CTL 222791AB3666 2ADC13 2ADC13-AT #2AWG 0.169 345 0.130 0.78 19.05 1.03 1.03 1.03 19.05 1.03 1.03 1.03 14 SPARE 2ADC14 0.000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15 2CW 460V BUS CTL 221412B9545 2ADC15 2ADC15-FT #2AWG 0.169 1490 0.562 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 0.65 16 FUTURE 2ADC16 0.000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17 GROUND DETECTION 203538A 1363 2ADC17 2ADC17-HT #14AWG 2.730 224 1.364 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 16 UV RELAY & VOLTM 203538A 1363 2ADC16 2ADC17-HT #14AWG 2.730 224 1.364 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 19 2AADC-125VDC DISTR CAB 221417B9545 2ADC19 2ADC19-AT #2AWG 0.169 146 0.063 15.72 84.56 15.96 17.53 17.53 67.42 17.27 16.21 60.44 11

{2BBDC DISTRIBUTION CAB - EMER) 221417B9545 2ADC20 2ADC20-AT #2AWG 0.169 113 0.043 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 20 21 FUTURE 2ADC21 0.000 o 0.000 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 FUTURE 2ADC22 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 000 22 23 GROUND DETECTION 220800A8916 2ADC23 2ADC23-HT #14AWG 2.730 40 0.244 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 24 #21 EMERG LTG INVTR 218682A8918 2ADC24 2ADC24-AT #2AWG 0.169 92 0.039 59.38 59.38 59.38 59.38 59.38 59.38 59.38 59.38 59.38 11 25 2ADC-125DC DISTR CAB 220808B9544 2ADC25 2ADC25-AT #2AWG 0.169 67 0.025 5.53 41.17 7.55 7.04 7.04 42.99 7.04 7.04 7.04 26 (2BDC DISTRIBUTION CAB - EMER) 220809B9544 2ADC26 2ADC26-AT #2AWG 0.169 142 0.054 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 27 SPARE 2ADC27 0.000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 28 SPARE 2ADC28 0.000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 29 2E 480V BUS CTL 218687A8918 2ADC29 2ADC29-HT #2AWG 0.169 122 0.046 1.43 41.18 1.13 1.13 1.13 21.51 1.43 1.43 1.43 30 2A 4160V VITAL BUS 203076AB3653 2ADC30 2ADC30-AT #2AWG 0.169 125 0.047 1.55 25.81 1.81 1.81 1.81 25.81 1.81 1.81 1.81 31 (2B 4160V VITAL BUS - EMER) 203076AB3653 2ADC31 2ADC31-AT #2AWG 0.169 96 0.036 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 32 SPARE 2ADC32 0.000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 33 FUTURE 2ADC33 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 34 FUTURE 2ADC34 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 35 2A 460V VITAL BUS CTL 218683B9544 2ADC35 2ADC35-AT #2AWG 0.169 126 0.053 0.73 80.75 0.90 0.90 0.90 81.04 0.90 0.90 0.90 11 36 (2B 460V VITAL BUS - EMER) 21868499544 2ADC36 2ADC36-AT #2AWG 0.169 106 0.040 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 37 SPARE 2ADC37 0.000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 38 FUTURE 2ADC38 0000 o 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total Current= 87.61 546.98 264.83 265.87 265.87 510.83 254.47 168.84 211.07 NOTES: See Page 1.

2A125.XLS CALCULATION ES-4.003(0), Rev. 1, ATIACHMENT 2A-1 PAGE2OF10

1*:

PSE&G SALEM NGS UNIT N0.2 2B-125VDC BATTERY SYSTEM LOAD PROFILE CALCULATION

SUMMARY

13-Jan-96 2B -125 voe BUS (DWG 220801-A-8918-6)

ConductorTemperature (Deg. C)= 55 Factor= 1.116 Cable Cable Cable Cable 2 3 4 5 6 7 8 9 I Notes Load Rated Voltage (Volt)= 125 Size Resist. Length Res.

Battery Terminal Voltage (Volt)= Note 9 At25C At (deg C) NORM LOCA I and LOCA LOCA LOCA SBO SBO SBO SBO I Comments Item No Load Description Reference Drawing Breaker Number Cable Number (AWG)

(OHMS/

10001 (FEET) (OHMS)

LOAD --------- ---- -------- ---------- ------------ I 0-1 1-30 30-60 60-120 0-1 1-30 30-239 239-240

********-***** -------------- ***--********** * * * * * * * * * * * - * * * - * * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -***H*********

I 00 BATTERY INTERNAL RESISTANCE 0.006 117.06 586.43 264.75 266.19 266.19 564.99 273.62 273.57 315.70 0 BATTERY 2B CABLE 2-500 MCM/p 0.011 50 0.001 j17.06 586.43 264.75 266.19 266.19 564.99 273.62 273.57 315.70 6, 11 1 FUTURE 2BDC1 0.000 0 0.000 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 FUTURE 2BDC2 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 000 0.00 0.00 3 #2B VITAL INST INVTR (10 KVA) 218681A6918 2BDC3 2BDC3-BT 2/0AWG 0.084 100 0.019 0.00 81.72 81.72 81.72 81.72 81.14 81.14 81.14 81.14 4 #2D VITAL INST INVTR (10 KVA) 218681A8918 2BDC4 2BDC4-DT 2/0AWG 0.084 88 0.017 0.00 72.71 72.71 72.71 72.71 72.71 72.71 72.71 72.71 5 #2B1 BATTERY CHARGER PSBP123893 2BDC5 2BDC5-BT 2/0AWG 0.084 25 0.005 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 6 #2B2 BATTERY CHARGER PSBP123894 2BDC6 2BDC6-BT 2/0AWG 0.084 25 0.005 0.00 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 7 FUTURE 2BDC7 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 8 FUTURE 2BDC8 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 9 2GP PRESS HTR BUS 218691A8918 2BDC9 2BDC9-ET #2AWG 0.169 135 0.051 0.13 10.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 10 2H 460V BUS CTL 218686A8918 2BDC10 2BDC10-ET #2AWG 0.169 324 0.122 2.22 21.84 1.84 1.84 1.84 21.84 1.84 1.84 1.84 11 SPDSINTERF 600900 2BDC11 2BDC11-BT #14AWG 2.730 150 0.914 0.00 0.00 0.00 0.00 0.00 0.00 000 0.00 0.00 4 12 2G 4160V BUS CTL 222792A83666 2BDC12 2BDC12-BT #2AWG 0.169 294 0.111 0.88 18.99 0.93 0.93 0.93 18.99 0.93 0.93 0.93 13 2E 4160V BUS CTL 222791 A83666 2BDC13 2BDC13-BT #2AWG 0.169 419 0.158 0.44 18.55 0.53 0.53 0.53 18.55 0.53 0.53 0.53 14 SPARE 2BDC14 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 15 (1CW 460V BUS EMER) 221411 89545 2BDC15 2BDC15-GT #2AWG 0.169 1544 0.582 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 16 FUTURE 2BDC16 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17 GROUND DETECTION 203536A1363 2BDC17 2BDC17-ET #14AWG 2.730 225 1.371 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 18 UV RELAY & VOLTM 220801 A8918 2BDC18 2BDC17-ET #14AWG 2.730 225 1.371 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 19 (2AADC DISTRIBUTION CAB - EMER) 221417B9545 2BDC19 2BDC19-BT #2AWG 0.169 140 0.053 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 20 2BBDC-125VDC DISTR CAB 221418B9545 2BDC20 2BDC20-BT #2AWG 0.169 140 0.059 18.85 62.69 12.36 13.92 13.92 68.22 18.27 18.41 60.84 11 21 (2CCDC DISTRIBUTION CAB - EMER) 221419B9545 2BDC21 2BDC21-DT #2AWG 0.169 90 0.034 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 22 13KV GR "B" PANEL 208737A8878 2BDC22 2BDC22-ET #2AWG 0.169 247 0.093 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 23 GROUND DETECTION 220801A8916 2BDC23 2BDC23-ET #14AWG 2.730 40 0.244. 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4 24 #22 EMERG LTG INVTR 218682A8918 2BDC24 2BDC24-BT #2AWG 0.169 77 0.031 75.94 75.94 75.94 75.94 75.94 75.94 75.94 75.94 75.94 12 25 (2ADC DISTRIBUTION CAB - EMER) 220808B9544 2BDC25 2BDC25-BT #2AWG 0.169 55 0.021 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 26 2BDC-125VDC DISTR CAB 220809B9544 2BDC26 2BDC26-BT #2AWG 0.169 140 0.053 1.73 38.62 2.44 2.41 2.41 38.71 2.44 2.41 2.46 27 (2CDC DISTRIBUTION CAB - EMER) 22081 OB9544 2BDC27 2BDC27-DT #2AWG 0.169 55 0.021 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 28 2DDC-125VDC DISTR CAB 220811 B9544 2BDC28 2BDC28-DT #2AWG 0.169 118 0.044 11.71 9.86 10.92 10.84 10.84 13.10 14.17 14.00 14.00 29 2G 460V BUS CTL 218689A8918 2BDC29 2BDC29-GT #2AWG 0.169 55 0.021 1.58 41.15 1.11 1.11 1.11 21.43 1.41 1.41 1.41 30 (2A 4KV VITAL BUS - EMER) 203076A83653 2BDC30 2BDC30-BT #2AWG 0.169 162 0.061 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 0.00 3 31 2B 4160V VITAL BUS 203076A83653 2BDC31 2BDC31-BT #2AWG 0.169 125 0.047 1.65 31.81 1.81 1.81 1.81 31.81 1.81 1.81 1.81 32 (2C 4160V VITAL BUS - EMER) 203076A83653 2BDC32 2BDC32-DT #2AWG 0.169 110 0.041 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 3 33 FUTURE 2BDC33 0.000 0 0.000 0.00 0.00 34 FUTURE 2BDC34 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 0.00 000 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 35 (2A 460V VITAL BUS- EMER) 218683B9544 2BDC35 2BDC35-BT #2AWG 0.169 172 0.065 0.00 0.00 0.00 0.00 0.00 0.00 000 0.00 o.oo I 3 36 2B 460V VITAL BUS 218684B9544 2BDC36 2BDC36-BT #2AWG 0.169 111 0.047 0.88 101.37 1.25 1.25 1.25 101.37 1.25 1.25 1.111 11 37 (2C 460V VITAL BUS- EMER) 218685B9544 2BDC37 2BDC37-DT #2AWG 0.169 98 0.037 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I 3 38 FUTURE 2BDC38 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo I

---------- -------- - - - - ------- -------- ----------- ----- -------- I Total Current= 117.06 586.43 264.75 266.19 266.19 564.99 273.62 273.57 315.70 I NOTES: See Page 1.

2B125.XLS CALCULATION ES-4.003(0), Rev. 1, ATTACHMENT 2B-1 PAGE 2OF16

1**

PSE&G SALEM NGS UNIT N0.2 2C-125VDC BAITERY SYSTEM LOAD PROFILE CALCULATION

SUMMARY

13-Jan-96 2C -125 voe BUS

-----------------------------*********Hoooo-*-* ---*******oOooooooO oooo*Ooo-**O-oo *OOOoo***Oooo-000000* ----- 0000-0*0-oo oooooo*****O-* oooo***O*oo****oO ------------------

Conductor Temperature (Deg. C)= 55 Factor= 1.116 Cable Cable Cable Cable 2 3 I Notes Load Rated Voltage (Vott)= 125 Size Resist Length Res I and Battery Terminal Voltage (Volt)= Note9 At25C At (deg C) NORM LOCA LOCA LOCA LOCA SBO SBO SBO SBO I Comments Reference Breaker Cable (OHMS/ LOAD ------------- ----------- I Item No Load Description Drawing Number Number (AWG) 1000') (FEET) (OHMS) 0-1 1-30 30-60 60-120 0-1 1-30 30-239 239-240 I 00 BATTERY INTERNAL RESISTANCE 0.006 711.93 431.24 711.93 431.24 711.93 431.24 711.93 431.24 431.24 I a BATTERY 2C CABLE 2-SOOMCM/ 0.011 41 0.001 711.93 431.24 711.93 431.24 711.93 431.24 711.93 431.24 431.24 I 6, 11 1 #21&#22 STAT ESS CTL INVTR 218682A891 B 2CDC1 2CDC1-CT 2/0AWG 0.084 39 0.008 0.00 151.12 151.12 151.12 151.12 147.35 147.35 147.35 147.35 I 11 2 SPARE 2CDC2 0.000 0 0000 0.00 0.00 0.00 0.00 0.00 000 0.00 0.00 o.oo I 3 #2C VITAL INST INVTR (10 KVA) 218681A8918 2CDC3 2CDC3-CT 2/0AWG 0.084 60 0.011 0.00 74.48 74.48 74.48 74.48 74.07 74.07 74.07 74.07 4 ALT SHUTDOWN DIST PNL 2ASDS 249552B9849 2CDC4 2CDC4-CT 2/0AWG 0.084 35 0.007 0.02 38.34 38.34 38.34 38.34 38.34 38.34 0.00 0.00 5 #2C1 BATTERY CHARGER 2CDC5 2CDCS-CT 2/0AWG 0.084 15 0.003 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 6 #2C2 BATTERY CHARGER 2CDC6 2CDC6-CT 2/0AWG 0.084 15 0.003 0.00 a oo 0.00 0.00 000 0.00 0.00 0.00 0.00 7 FUTURE 2CDC7 0.000 a 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 8 FUTURE 2CDC8 0.000 a 0.000 0.00 a cx1 0.00 0.00 0.00 0.00 0.00 0.00 000 9 SPARE 2CDC9 0.000 0 D.000 0 DO 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 10 SPARE 2CDC10 0.000 a 0000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 D.00 11 #23 EMERG LTG INVTR 218682A8918 2CDC11 2CDC11-CT #2AWG 0.169 80 0.030 32.25 32.25 32.25 32.25 32.25 32.25 32.25 32.25 32.25 12 SPARE 2CDC12 0.000 a 0.000 0.0D 0.00 0.00 000 0.00 0.00 0.00 0.00 0.00 13 SPARE 2CDC13 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 14 SPARE 2CDC14 0.000 0 0000 0.00 000 0.00 0.00 O.OD 0.00 0.00 0.00 000 15 SPARE 2CDC15 0.000 0 a ooo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16 SPARE 2CDC16 0.000 a 0.000 0.00 O.DO 0.00 0.00 0.00 0.00 0.00 0.00 0.00 17 GROUND DETECTION 22784BA1402 2CDC17 2CDC17-FT #14AWG 2.730 227 1 383 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 18 UV RELAY & VOLTM 227848A 1402 2CDC18 2CDC17-FT #14AWG 2.730 227 1 383 0.00 0.00 0.00 D.00 0.00 0.00 0.00 0.00 0.00 19 SPARE 2CDC19 D.000 a 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 000 20 SPARE 2CDC20 0.000 a D.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 21 2CCDC-125VDC DISTR CAB 221419B9545 2CDC21 2CDC21-CT #2AWG 0.169 82 0.035 36.38 73.41 18.74 18.74 18.74 79.90 24.08 24.20 66.39 11 22 2CDCDG-125V DC DISTR CAB-EMER 252500A9940 2CDC22 2CDC22-CT #2AWG 0.169 430 0.162 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 23 (2DDC 125VDC DISTR CAB EMERG) 220839A89S1 2CDC23 2CDC23-FT #14AWG 2.730 35 0.213 0.00 0.00 0.00 0.00 000 0.00 0.00 0.00 0.00 4 24 FUTURE 2CDC24 0.000 0 0.000 0.00 000 0.00 0.00 0.00 O.OD 0.00 0.00 0.00 25 SPARE 2CDC25 0.000 0 0.000 0.00 0.00 0.00 0.00 .o.oo 0.00 0.00 0.00 0.00 26 SPARE 2CDC26 0.000 a 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 27 2CDC-125VDC DISTR CAB 2:2081 OB9544 2CDC27 2CDC27-CT #2AWG 0.189 51 0.019 8.09 7.71 8.22 8.10 8.15 7.79 8.2:2 B.10 8.10 28 (2DDC DISTRIBUTION CAB - EMER) 2:20811 B9544 2CDC28 2CDC28-CT #2AWG 0.169 130 0.049 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3 29 SPARE 2CDC29 0.000 0 O.DDO 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 30 FUTURE 2CDC30 0.000 0 0.000 0.00 000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 31 SPDS COMP INTERFACE *c 600902.00 2CDC31 2CDC31-CT #14AWG 2.730 90 0.548 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 32 2C 4KV VITAL BUS 203076AB3653 2CDC32 2CDC32-CT #2AWG 0.169 130 0.049 1.31 25.49 1.49 1.49 1.49 25.49 1.49 1.49 1.49 33 SPARE 2CDC33 0.000 a 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 34 FUTURE 2CDC34 0.000 a 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 o.oo. 0.00 35 FUTURE 2CDC35 0.000 0 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 36 FUTURE 2CDC36 0.000 a 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 37 2C 460V VITAL BUS 218683B9544 2CDC37 2CDC37-CT #2AWG 0.169 120 0.051 1.52 101.73 1.61 1.61 1.61 101.73 1.61 1.61 1.81 11 38 FUTURE 2CDC38 0.000 a 0.000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Total Current= 79.57 504.52 326.24 326.13 326.18 506.91 327.38 289.07 331.26 NOTES: See Page 1.

VDS2C125.XLS CALCULATION ES-4.003(0), Rev. 1, AITACHMENT 2C-1 PAGE 2OF16

ML18102A132

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