ML20100B659
| ML20100B659 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 11/08/1984 |
| From: | LONG ISLAND LIGHTING CO. |
| To: | |
| References | |
| OL-I-SC-080, OL-I-SC-80, NUDOCS 8503280513 | |
| Download: ML20100B659 (10) | |
Text
SC
/ W PO slips-1 FSAR O
metal-enclosed switchgear with incoming main circuit breaker.
The 480 V emergency buses are physically isolated and 3
electrically independent.
The normal and safety related 4,160-480 V transformers are rated 1,000/1,333 kva, 3 ph, 60 Hz.
The circuit breakers used as bus ties in the double ended load centers and all incoming main circuit breakers are rated 1,600 amp continuous and have an interrupting capacity of 50,000 amo symmetrical.
All other feeder breakers are rated 600 amp continuous and have an interrupting capacity of 30,000 amp symmetrical with instantaneous trips and 22,000 amp symmetrical without instantaneous trips.
All load center breakers are air-magnetic, drawout type.
Power for motors approximately 100 hp and smaller and other small power requirements
- are, in
- gueral, fed from motor control centers (MCCs) supplied from tne normal or emergency 480 V unit substations.
The MCCs are self-supporting metal-clad structures with circuit breaker type combination magnetic reversing or nonreversing motor starters and molded case circuit breakers.
Breakers used in combination starters have a
14,000 amp symmetrical interrupting capacity.
Breakers used for branch ieeders have 22,000 amp symmetrical interrupting capacity.
Emergency MCCs are physically separated such that any design basis event which may affect one redundant system shall not jeopardizo proper operation of the other system.
Class IE circuits are designed to operate as required under lowest postulated transmission system conditions.
Essential nonsafety related 480 V loads required during the loss of offsite power are supplied from the emergency 480 V system through two circuit breakers connected in series and physically separated from each other.
Certain nonsafety loads are tripped l
free of the emergency buses at the time of a LOCA (see Table 8.3.1-1 for detail,s).
8.3.1.1.5 Onsite Standby Power Supply The rating of each diesel generator set is as follows:
Continuous (8,700 hr) 3,500 kW 2,000 nr 3,500 kW 160 hr 3,500 kW 2 hr per 24 hr period 3,900 xW 30 min 3,900 kW The 2
hr rating in any 24 hr period is the rating without reducing the maintenance interval established for the continuous rating.
g3:286R Mh!)h2 0
8.3-5 Revision 26 - April 1982
w.
SNPS-1 FSAR l
The emergency diesel generators are automatically started on:
i 1.
Loss of voltage to the respective 4,160 V bus.to which each generator is connected.
2.
High drywell pressure.
3.
Low reactor coolant level signal.
If the preferred (offsite) power source is not available, the emergency diesel generators are automatically connected to the 4,160 V emergency buses and sequentially loaded.
The' capacity of any two emergency diesel generators is sufficient to meet the safety related load required by a loss of coolant accident and loss of offsite ac power.
The required loads and maximum coincident demand is shown in Table 8.3.1-1.
The emergency diesel generator loading sequence. for the above shutdown conditions is shown in Table 8.3.1-2.
The loading sequence prevents system instability during motor starting.
A fast responding exciter and a voltage regulator ensure quick voltage recovery after any load step.
The generators use field flashing for quick voltage buildup during the starting sequence.
Each diesel generator has independent start control circuits.
The emergency diesel generator units are housed in separate seismic Category I rooms.
Cooling water for each emergency diesel generator is supplied by the service water system.
For a complete description, refer to
]
Section 9.5.5.
s Each diesel engine has redundant, independent air starting systems.
Engine cranking is accomplished by two stored air supplies with sufficient capacity for each of the two supplies to start the engine at least five times without using an air compressor.
Fast starting and load pickup are facilitated by electric heaters which keep the engines warm when they are not running.
For a complete description, refer to Section 9.5.6.
Each diesel generator is equipped with protective. relays which shut the unit down automatically in the event of unit faults.
During operation under emergency conditions, trip conditions are limited to those, which if allowed to
- continue, would rapidly result in the loss of the emergency diesel generator.
The emergency diesel generators are tripped automatically under the following conditions:
Trio Function Exercise Mode DBA 1.
Reverse Power X
l 2.
Loss of Excitation X
l 3.
Overcurrent - voltage restrained X
X 4.
Generator Differential X
X l
S.
Lube Oil Low Pressure X
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SNPS-1 FSAR
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- 6. Lube Oil High Temperature X
- 7. Turbo Oil Low Pressure X
- 8. Jacket Water High Temperature X
- 9. Crankcase High Pressure X
- 10. Overspeed X
X l
Surveillance instrumentation is provided to monitor the status of l-the diesel generator.
Provisions for surveillance are an essential requirement in the design, manufacture, installation, testing, operation, and maintenance of the diesel generators.
Such surveillance not only provides continuous monitoring of the status of the emergency generators so as to indicate their readiness to perform their intended function, but also serves to facilitate testing and maintenance of the equipment.
Conditions which can adversely' affect performance of the emergency diesel generators are annunciated locally and in the main control. room.
The following list shows the important functions thats are
- annunciated:
Alarm Control Function Local Room
- 1. Low Pressure Lube Oil X
X
- 2. High Temperature Lube Oil X
- 3. Low Pressure Turbo Oil X
- 4. High & Low Temperature Jacket Water X
- 5. Low Pressure Jacket Water X
- 6. Low Level Jacket Water X
- 7. Low Level Fuel Day Tank X
- 8. Low Level Lube Oil X
- 9. Low Pressure Starting Air X
- 10. Aux. Pump Switches Off X
- 11. Low Pressure Lube Oil Shutdown X
- 12. High Temperature Lube Oil Shutdown X
- 13. Low Pressure Turbo Oil Shutdown X
- 14. High Temperature Jacket Water Shutdown-X
- 15. High Pressure Crankcase Shutdown X
- 16. Overspeed Shutdown X
X 4
- 17. Low Pressure Fuel Oil X
- 18. High Level Fuel Day Tank X
- 19. Low Flow Service Water X
- 20. Fail to Start X
1
- 21. Unit Unavailable X
- 22. Diesel System Degraded X
- 23. Diesel System Inoperative X
- 24. Diesel Engine Trouble X
- 25. Emergency Bus Supply or Feeder Breaker X
Auto Trip
- 26. Generator Neutral Ground Overcurrent X
- 27. Low Level Fuel Storage Tank X
- 28. Generator Field Manual Shutdown X
j
- 29. Generator PT Blown Fuse X
- 30. Generator Voltage Regulator Power Failure X
- 31. Main Board Control Disabled X
X l
8.3-7 Revision 27 - August 1982
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SNPS-1 FSAR j
i Alarm S l Local Control Room *
')
i
- 32. Generator Heater Loss of Control X
- 33. F.O. Suction Strainer High Differential Pressure X
- 34. Jacket Water Conductivity High X
f
- 35. Motor Driven Fuel Pump Running X
- 36. Field Flash Inoperative X
- 37. Fuel Oil Transfer Pump Locked Out X
- 38. Fuel Oil B'ooster Pump Strainer High X
Differential Pressure Note:
Alarm' No. 24 ' includes Local Alarm Nos. 2 through 10, 17, 18, 19, 20, 27, 28 and 34.
Alarm No. 23 includes Local Alarm No. 21 and 36.
Alarm No. 22~
includes Local Alarm No. 32.
The emergency generators and the offsite power sources are
. synchronized only during periodic testing or restoration of service.
Synchronization is done
- manually, through synchronization check relays, and automatic synchronization is not provided.
Onsite fuel storage is adequate for operating each emergency diesel g.enerator at rated load for seven days.
This includes one day tank for each diesel, with capacity for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of operation i
with the generator fully loaded.
A separate underground fuel oil storage tank.for each emergency diesel generator is provided.
Each storage tank has two full capacity transfer pumps that are operated automatically at preset level points in the corresponding day tank.
For complete information on the fuel oil system refer to Section 9.5.4.
The criteria used to size the emergency diesel generators are:
i 1.
The capacity of any two diesels is adequate to meet the i
safety features demand caused by a
loss of coolant accident.
The established demand is shown in Table 8.3.1-1.
2.
The maximum continuous load imposed on the diesel is less than the continuous rating of the machine, defined as the output the unit is expected to maintain for a minimum of 8,700 hours0.0081 days <br />0.194 hours <br />0.00116 weeks <br />2.6635e-4 months <br />.
The maximum intermittent load in the first 60 seconds (approx) during the operation of the motor-operated valves is less than the 2-hour rating of the machine.
These loads are given in Table 8.3.1-1.
3.
Each generator is capable of starting and accelerating to rated speed, in the required sequence, all of its
')
8.3-8 Revision 31 - August 1983
SNPS-1 FSAR engineered safety features and emergency shutdown loads, N
as shown in Table 8.3.1-2.
Sizing of the emergency dierel generators is consistent with Regulatory Guide 1.9.
Each of the emergency diesel generator units is located in its own separate room within the control building, as shown on the physical drawing (Figs. 3.8.4-6 and 7).
)
8.3-Ba/b Revision 30 - June 1983
)
SNPS-t FSAR
[
=
l' TABLE 8.3.1-1 i
EMERGENCY DIESEL GENERATOR SYSTEM i
(
REQUIRED LOADS AND MAXIMUM CDINCIDENT DEMAND I
Number Requtred Nameplate Total Design Basis Loss Loss of Maximum Coincident Rating Plant of Coolant Acetdent Offstte Power Demand (Kilowatt) " ' ' "
Function (Hp)
Number 0-10 Min 10 Min on (Hot S t andt:y)
DG-101 DG-102 DG-103
{
a Core Spray Pump 1250 2
1 "'
1 998 998
{
Residual Heat Removal Pump 1250 4
2 '"
1 2
999 999 1998 '"
g Service Water Pump 450 4
2 2
3 '"
358 358 716 s
3 RBSVS and CRAC Water Chtller 292 4
2 2
2 235 235 470'"
l RBSVS and CRAC Water Chtller Lube Oil Pump
.25 4
2 2
2 0.2 0.2 0.4 **'
RBSVS Chiller Circ.
Water Pump 75 4
2 2
2 60 60 120 '"
RBSVS Chtller Cond. Water 20 4
2 2
2 16 16 32'"
RBSVS Untt Cooler 30 8
4 4
4 96 96 RBSVS Exhaust Fan 100 3
2 2
2 82.5 82.5
.82.5 Reactor Butiding Exhaust Booster Fan 7.5 2
1 1
1 6
6 RBSVS Filter Reheat Coil 6.6 kW 2
1 1
1 6.6 6.6 RBCLCW Circ. Pump 100 3
2 2
2 80 80 80 l
r l
Diesel Generator Air I
l Compressor 10 6
12 12 12 l
Diesel Generator Fuel Oil Transfer Pump
.5 6
2 2
2 0.4 0.4 0.4 I
Diesel Generator Jacket Water Heater 36 kW 6
72 " "
72 " "
72 " "
Diesel Generator Jacket Water Keep Warm Pump 2.5 kW 3
- 2. 5 " "
- 2. 5 " "
- 2. 5 " " I Diesel Generator Lube l
Oil Heater 20 kW 3
20 " "
20 " "
20 " "
l Diesel Generator Before
& After Lube Oil Pump 5
3 4""
4""
4""
Diesel Generator Heater 4.2 kW 3
- 4. 2 " "
4.2""
4.2""
Battery Charger (125 V) 60 kva ""
3 2
2 2
20 25 17 120 V ac Instrument Power 100 kva DG 101 3
2 2
2 80 80 40 100 kVa DG 102 50 kva DG 103 e
120 V Nonemergency Feeds 65 kVa X "*
52 '"
Diesel Generator Room Vent supply Fan 20 3
2 2
2 16 16 16 l
Battery Room Vent Supply Fan 2
3 2
2 2
1.6 1.6 1.6 l
Control Room Air Condition-Ing Unit 40 2
1 1
1.
33.9 33.9 l
Control Room Vent Booster Fan 7.5 2
1 1
1 6.0 6.0 l
1 of 4 Revision 31 - August 1983 l
\\
L
SNPS-1 FSAR TABLE 8.3.1-1 (CONT'D)
Number Required Nameplate Total Design Basis Loss Loss of Maximum Coincident.
Rating Plant of Coolant Accident Offsite Power Demand (Kilowatt) '" "'
Functton (Hp)
Number 0-10 Min 10 Min on (Hot Standby)
DG-101 OG-102 DG-103 Emergency Switchgear Relay &
Computer Rooms Air Condt-tioning Unit 40 2
1 1
1 33.9 33.9 TSC Air Conditioning 40 kW 1
1 1
40 ". ' "
Unit TSC Air Cooled 30 kW l
1 1
30 ". ' "
Condenser Emergency Switchgear. Relay &
g Computer Rooms Exhaust Fan 10 2
1 1
1 8.0 8.0 RBSVS Chiller Room Exhaust Fan 3
2 1
1 1
2.4 2.4 Screenwell Exhaust Fan 10 2
1 1
1
. 8.0 8.0 Screenwell Interposing 1 kva 1
1 1
1 0.8 Relay Panel MCC Room ventilation
.75 2
1 1
1
- O.5 0.5 l
LPCI M-G Set Room Venti-lation 3
4 2
2 2
2.4 2.4 4.8 Untt Cooler MCC 081 Room 1.5 1
1 1
1 1.2 I
Spent Fuel Pool Cooling Water Pump 30 2
1 1
24 "'
24 "'
l Loop Level Pump (CS, RHR, HPCI. RCIC) 7.5 4
4 2
4 12.0 12.0 I
Atmospheric Cont. - Hyd.
Recombiner 109 kW 2
1 109 '"
109 "*
MSIV-LCS Heaters 6.6 kW 4
26.4 "*
MSIV-LCS Blowers 4.4 3
7 "'
- 3. 5 "'
Radiation Monitoring 1
10 4.8 3.2 Lighting (Equivalent kW) 407.2 kW X "'
180 "'
227.2 "'
Fence Security Lighting 60 kW X "'
34 26 Reactor Protection System M-G Set "*
25 2
2 20 " "
20 " "
I Reactor Protection System Backup Transformer 25 kVa 1
1 20 "'
Battery Charger 124 V 3 kVa 4
- 2. 4 "'
- 2. 4 '"
Uninterruptible Power (Vital Bus)"'
37.5 kva 1
1 1
1 30 Untnterruptible Power (Security & Communt-g ca t t ons ) "*
20 kVa 1
1 1
1 16 Battery Charger (Security and Communication) 20 kVa " **
1 4
l Uninterruptible Power (Computer Bus) "'
20 kVa 1
1 1
1 16 Control Rod Drive Pump "'
250 2
1" 206.1 "'
206.i "'
Drywell Cocilng System Fan"*
25 8
4 80 "'
80 "'
9 2 of 4 Revision 31 - August 1983 L
SNPS-1 FSA2 TABLE'8.3.1-1 (CONT *D)
Number Requ1 red Nameplate Total Design Bast Loss Loss of Maximum Cotncident Rating Plant of Coolant Accident Offette Power Demand (Kilowatt) '" '"
Functton (HD)
Number 0-10 Mir] 10 Min on (Hot Standtv)
DG-101 DG-102 DG-103 Primary Containment 2 kva 2
1
- 1. 6 "'
1.6'"
Air Cooler SuDfeed i
Rec t rc. Pump '"
60 2
t 48 '"
48 "*
Suppression Pool Pump i
Back Pump 25 1
20'"
l Main Turbine Turning Gear '"
60 1
1 48'"
t Main Turbtne Ptggyback l
Turning Gear Drtve 0.5 1
1 O. 4 '"
O I I Pump '"
40 1
1 32 "'
l Main Turbine Bearing Ltft Pump '"
5 7
7 8'"
8 '"
12'"
I
~
Feedwater Turbine Turning 2
- 1. 2 '"
- 1. 2 "'
g Gear "*
1.5 2
Feedwater Turbine Turning Gear 08I Pump "'
10 2
2 8 "'
8 "'
2
- 1. 2 "'
- 1. 2 '"
Transformer Standby Liquid Control Pump 40 2
32'"
32 "'
l Standby Liquid Control Main Heater "'
10 kW 1
Standby Liquid Control to "'
Mixing Heater "*
45 kW 1
45 '"
Standby Liquid Control Heat Tracing 3 kva 2
3'"
3 "'
Heat Tracing Trans-25 kva 2
1 1
2 20 20 former 480 V M-G Set 200 " "
4 2
2 2
160 160 214 Refueling Jtb Crane 3.25 2
- 2. 5 "'
- 2. 5 "' -
Refueling Platform Assembly 3.5 1
- 2. 8 '" -
Motor Operated valves X'"
19.7 18.3 0.7 Nonoperat ing MOV's ""
95.9 75.3 Total Connectable Loads 4381.3 4147.8 4493.7 Mimas Note 11 Loads 95.9 75.3 O
4285.4 4072.5 4493.7-e Minus Note 8 Loads
- 597.8
- 428.0
- 439.6 3687.6 3644.5 4054.1 Minus Note 10 Loads 20.0 20.0 0
3667.6 3624.5 4054.1 Minus Note 9 Loads 136.0
- 138.9 70.0 3531.6 3485.6 3984.1 Minus Note 13 Loads 102.7
- 102.7
- 102.7 Total kW (60 seconds approx) 3428.9 3382.9 3881.4 Minus Operating MOV's 19.7 18.3 0.7 e
3 of 4 Revision 31 - August 1983
)
SNPS-1 FSL2 i
TABLE 8.3.1-1 (CONT *D)
Total kW (Petor to 10 minutes) 3409.2 3364.6
. 3880.7 O
0
-1310.2 Minus Note 4 Loads Plus Note 14 Loads O
O
+ 70.0 Total kW ( Af ter 10 minutes) 3409.2 3364.6 2640.5 NOTES:
(
Maximum coincident demand shown occurs during the 0-10 minute period after a design basis loss of coolant accident l
(LOCA).
ll Kilowatt loads given are from manufacturer *s data for the CS. RHR, service water pumps, motor-generator sets, RBSVS l i
chiller units, and all motors greater than 100 Hp.
,i On loss of offstte power, it is necessary to go to a cold shutdown condition if DG-103 does not start, since the three required service water pumps will not be available. Note that only two service water pumps are required for a design basis LOCA condition. (Only one pump is connected automatically to DG-103, the other may be connected manually only.)
I Two units are started on DG-103.
One unit is shut down when it is determined which section of the system will be used.
r These nonclass IE components are not required for a safe shutdown. Loading Indicated for various modes of operatton is desirable, although not essential. All remaining components are Class IE.
Minimum safe shutdown requirements for a suction line brook.
Actual pump requirements depend on break locatton (see Section 6.3.3).
X fndicates load required.
These loads are tripped intentionally (automatically) on a LDCA.
i' These loads are not normally operating and receive no automatic start signal after a LDCA.
l These nonsafety related loads have seal-in type control circuits that drop out on a loss of offstte power prior to y
connecting to the diesel generators.
These MOV's are connected to their respective diesel buses but do not operate upon a LOCA.
The load to be carried by the M-G Sets consist of certain motor-operated valves. On Unit 103, one set operates at ful'1 l J
j toad and one set operates unloaded.
k These loads are automatically tripped when diesel generator starts.
i These loads are prevented from stsrting until 10 minutes after a LOCA signal.
Loads imposed by battery chargers are based on the dc loading of the battery chargers, j:
1 j
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c 4 of 4 Revision 31 - August 1983 i
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