ML18082A939

Startup Procedure 90.7,Revision 2, Simulated Loss of All Onsite & Offsite Ac Power.

ML18082A939
Person / Time
Site:	Salem
Issue date:	08/07/1980
From:	Public Service Enterprise Group
To:
Shared Package
ML18082A922	List: ML18082A920 ML18082A923 ML18082A925 ML18082A931 ML18082A933 ML18082A934 ML18082A936 ML18082A937 ML18082A938 ML18082A939 ML19331C787
References
90.7, NUDOCS 8008190551
Download: ML18082A939 (19)

Text

. f ..

STARTUP PROCEDURE 90.7 UNIT NO. 2 SIMULATED LOSS OF ALL ONSITE AND OFFSITE AC POWER Salem Unit 2

STARTUP PROCEDURE 90.7 SIMULATED LOSS OF ALL ONSITE AND OFFSITE AC POWER l.O OBJECTIVES The objectives of this test are:

l.l To demonstrate that following a loss of all onsite and offsite power, in-cluding the emergency diesel generators, the decay heat can be removed using the auxiliary feedwater system in the manual mode.

l.2 It will be verified that hot standby conditions can be maintained by manual control of the auxiliary feedwater system.

l.3 It will also be verified that critical plant operations can be performed using emergency lighting, that the 125-volt vital battery has the ability to supply the 125-volt vital AC and that certain equipment areas do not exceed maximum design temperature.

l. 4 To provide operator training.

-l- SUP 90.7, Rev~ 2 Salem Unit 2 L_ _ _

2.0 REFERENCES

2.1 2.2 FSAR Salem Unit 2 Technical Specifications (with exceptions listed in SUP 90.0) 2.3 Station Operating Instructions EI I-4.0 "Safety Injection Initiation" Rev. 1 EI I-4.18 "Loss of Control Air" Rev. 4 EI I-4.9 "Blackout" Rev. 8 OI II-1.3.l "Reactor Coolant Pump Operation" Rev. l OI II-3.3.l "Establishing Charging, Letdown and Seal Injection Flow" Rev. 0 OI III-10.3.l "Auxiliary Feedwater System Operation" Rev. 1 OI IV-5.3.2 "Battery Charger Operation" Rev. 0 2.4 W Safety Evaluation Report 2.5 SUP 90.0, "Special Tests Sequence Document" 2.6 Unit 2 Electrical Distribution Breaker Lineup and Deviation Book.

2.7 PSE&G Drawings 2.7.1 203007 Rev. 1 Salem Unit 2 SUP 90.7, Rev. 2

• 3.0 PREREQUISITES 3.1 SUP 90.l is satisfactorily completed 3.2 Special test instrumentation required per section 7.0 is in place and operational 3.3 The input logic of safety injection on Hi Steam Line ~P has been modified in accordance with Reference 2. 5 {SUP 90.0, Appendix Al 3.4 The Hi Steam flow coincident with Lo S/G pressure or Lo Tavg input to safety inj.ection has been modified in accordance with Reference 2.5. {SUP 90.0, App. Al 3.5 Automatic actuation of safety injection has been blocked in accordance with Reference 2.5 {SUP 90.0, Appendix Al 3.6 The test engineer has conducted briefings of all test personnel on the conduct of the test.

3.7 Sound powered headphone communication is available between the control room and the auxiliary feed p~p area.

3.8 Station QA has been informed of the start of this test *.

3.9 The S/G low-low and lo level reactor trip setpoints are reset to 5% level.

Salem Unit 2 SUP 90. 7, Rev. 2

INITIAL CONDITIONS 4.1 Reactor is shutdown with control rod drives de-energized and Tavg ~ 550°F with sufficient shutdown margin for a 100°F cooldown.

_ _ 4.2 RCS pressure is approximately 2235 psig and pressurizer level is approximately 50%

with controls in manual.

4.3 All four reactor coolant pumps are in operation.

4.4 Main Steam isolation valves are closed with steam pressure approximately 1025 psig being maintained by atmospheric steam dumps.

4.5 Steam generator level being maintained at approximately 16% on the narrow range by the 21 and 22 auxiliary feed pumps.

4.6 The 23 auxiliary feed pump is lined up in standby IAW OI III-10.3.l. The 21-24 AFll valves have been pre-set to deliver 75 gpm to each steam generator. (This will limit the cooldown rate to ~50°F/hour) 4.7 At least 200,000 gallons in the Auxiliary Feed Storage tank are available to supply the Auxiliary Feedwater System.

4.8 Excess letdown is available for service if required during the test.

4.9 Main and Feed pump turbines are shutdown and cold.

4.10 The 2A, 2B and 2C 125V DC Buses are in service supplying their normal loads.

~ 4.11 The 2A and 2B 28V DC Buses are in service and supplying their normal loads.

4.12 Verify that battery-powered inverter lights are.located in areas where operation of equipment is required after normal lighting is de-energized.

4.13 Charging is being maintained with a centrifugal pump and in automatic control.

4.14 All personnel not essential to this test or the safe operation of the station have been evacuated from all work areas in the auxiliary and containment buildings.

NOTE: This is a safety measure since these work areas will be without lighting for approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

Salem Unit 2 SUP 90.7, Rev. 2

• 5.0 ENVIRONMENTAL CONDITIONS 5.1 It may be necessary to use atmospheric steam dumps to regulate steam generator pressures during this test

• Salem Unit 2 SUP 90. 7, Rev. 2

6.0 ACCEPTANCE CRITERIA 6.1 Emergency lighting in the station is sufficient to operate critical equipment with the loss of all normal lighting.

6.2 Hot standby conditions can be maintained for a 2-hour period with critical equipment operating from vital battery power.

6.3 Manual operation of auxiliary feedwater valves can be coordinated by the operators.

6.4 Critical equipment areas do not exceed design temperature limits Auxiliary Feed Pump Room, (140°F), Control Room, (90°F), Inverter Area, (122°F).

6.5 Operator participation in the simulated loss of all onsite and offsite AC power nas been recorded ?n Appendix A.

6.6 RCS is maintained within the Operator Action Points outlined in SUP 90.0, section 9.1.4 Salem Unit 2 SUP 90.7, Rev. 2

7.0 SPECIAL TEST EQUIPMENT Instrument Specification Serial No. Calibration 7.1 Strip Chart Recorder Brush 260 or equivalent 7.2 Room* thermometer Control Room 23 Auxiliary Feed Pump Room Control Area EL. 100 (near inverters) 7.3 Explosimeter Battery Room 2A Battery Room 2B Battery Room 2C Salem Unit 2 SUP 90.7, Rev.2

8.0 DATA COLLECTION 8.1 Connect Brush Recorder to the following test points:

Channel Awciliary Feed flow to S. G. 21

• 1 Channel #2 Auxiliary Feed flow to S.G. 22 Channel i3 Awciliary Feed flow to S.G. 23 Channel #4 Awciliary Feed flow to S.G. 24 Channel #5 Pressurizer Pressure Channel #6 Pressurizer Level NOTE: Recorder must be powered from an electrical source that will not be lost during the blackout. Run a power cable across from #1 Control Room.

8.2 Set up P-250 to trend the following parameters on the digital trend typewriter.

a) Pressurizer pressure and level P0480A, L0480A b) RCS Wide Range Tc T04"06A, T0426A, T0446A, T0466A c) RCS Wide Range Th T0419A, T0439A, T0459A, T0479A d) Steam Generator Pressures P0400A, P0420A, P0440A, P0460A e) Steam Generator Wide Range Levels L0403A, L0423A, L0443A, L0463A f) Steam Generator Narrow Range Levels L0400A, L0420A, L0440A, L0460A 8.3 The following information (as applicable) shall be recorded on each strip chart and computer listing.

a) Unit number b) Date c) Procedure No.

d) Parameter Scale and Range e) Chart Speed f) Name of person recording data g) Recorder ID number h) Time mark for start of test 8.4 Data will be*recorded on the appropriate check-off sheet, in the body of the procedure, or attached (charts or printouts) as appropriate.

8.5 A record of Unit 2 licensed operators observing or participating in this test is documented on Appendix A.

8.6 Data acquisition does not need to be repeated for multiple test performance.

8.7 A log of all actions taken not 'outlined in this procedure shall be recorded on Data Sheet #1.

8.8 Periodic Temperature,Voltage and H 2 readings shall be recorded on Data Sheet #2.

Salem Unit 2 SUP 90. 7, Rev. 2

• • 0 PRECAUTIONS 9.1 Maintain Reactor Coolant Pump seal requirements as given in OI II-11.3.1.

Since the 4KV vital busses are not de-energized during this test, no interruption in either seal injection flow or CCW cooling to RCP's is expected.

9*. 2 Ensure seal flow to each Reactor Coolant Pump is maintained at or slightly above 6 gpm.

9.3 In obtaining equilibrium conditions after the transient, avoid any sudden changes in Auxiliary Feedwater or Stearn Flow.

9.4 If primary system pressure drops to a point where it is obvious that saturation pressure for the existing hot leg or incore T/C temperatures will soon be reached, the pressurizer heaters will have to be energized or charging flow re-established to increase system pressure, maintain this margin to Tsat > 20°F.

9.5 Monitor the Auxiliary Feed Storage Tank level throughout the test. If the tech.

spec. limit of 200,000 gal. is reached, make up to the tank.

9.6 Due to the loss of auxiliary building ventilation and safe guards equipment roo~

coolers, temperatures of equipment operating during the test such ,as charging pumps and component cooling pumps should be checked periodically during the test.

9.7 After the buses are de*energized, it is recognized that many support systems required to prevent degradation or damage to plant equipment will also be de-energized. The following parameters and equipment should be monitored closely and restored as necessary.

a) 21 & 22 Station Auxiliary Transformers Cooling 21 Turbine East 230V c. c. (2H 230V Bus) 21 Turbine West 230V c. c .. (2F 230V Bus) b) Vital Heat Tracing 2A 400V Vi.tal Bus 2B 460V Vital Bus c) Rx Nozzle Support Fans 21 - 2A Ventilation 230V Vital c.c.

22 - 2B Ventilation 230V Vital c.c.

23 - 2C Ventilation 230V Vital c.c.

24 - 2C Ventilation 230V Vital c.c .

Salem Unit 2 SUP 90. 7, Rev. 2

d) e)

Rx Shield Ventilation Fans 21 - 2A Ventilation 230V Vital 22 - 2B Ventilation 230V Vital Containment Fan Coil Units c.c.

c.c.

21 - 2A 460V Vital Bus 22 - 2B 460V Vital Bus 23 - 2B 460V Vital Bus 24 - 2C 460V Vital Bus 2.5 - 2C 460V Vital Bus 9.8 All test equipment and recorders required for this test must be powered from inverter protected sources, or by running a cable across from #1 Control Room.

9.9 If manual SI is initiated, verify that the 460/230V Vital Buses are restored automatically by the SEC. If not, manually reclose breakers 2A4D, 2B4D and 2C4D *

• 9.10* The cooldown transient during this test is expected to be severe. The AF-21 valves have been pre-set to limit the cooldown rate to about 50°F/hr. Do not allow the plant to cooldown at greater than 100°F/hr.

9.11 The cooldown at S0°F/hr will cause a shrink in pressurizer level which would require 60 gpm charging flow (in excess of letdown) to maintain level. Since charging and letdown are isolated, ~he excess will correspond to just the seal injection - seal return, or about 20-24 gpm. Excess letdown is ~ expected to be necessary unless a significant delay is encountered between steps 10.ll and 10.16.

9.12 Do not allow pressurizer level to exceed 60%, before the transient nor fall be :.ow 5%, during the transient.

9.13 To avoid repeated discharges of* the station batteries, re-runs of this procedure for training, will be performed without de-energizing the AC feeds to the inverters or battery chargers

• Salem Unit 2 SUP 90.7, Rev. 2

\.

10.0 INSTRUCTIONS 10.l Fail closed dampers 1ABS2 and 2ABS4 and fail open damper 2AB~6.

NOTE: These dampers will be placed in their failed position to allow monitoring the air temperatures in the area of the 23 Auxiliary Feed Pump under blackout conditions.

10.2 Transfer all Vital Heat Trac~ng to the 2B electrical train.

10.3 Transfer charging to tbe 21 Charging Pump if not already in service.

10.4 Transfer component, cooling load to the 22 component cooling pump and Heat Exchanger.

Shutdown the 21 c.c. pump.

10.5 Shutdown the following equipment,on the 2B Vital Buses and place in service redundant equipment whe~e necessary. (this places the 2B 460/230V Vital Buses in a condition such that they may be restored immediately, if needed, by closing breaker 2B4D).

2B 460V Vital Bus 22 Containment Fan Coil Unit 24 Containment Fan Coil Unit 22 Switch Gear Room Supply Fan 22 Auxiliary Building Exhaust. Fan 22 Chiller 2B 230V Vital Bus 2B Vital Instrument Inverter - open AC input breaker only (2B5Yl 2D Vital Instrument Inverter - open AC input breaker only (2BllY) 2Bl 125 Volt Battery Charger - (OI IV-5.3.2) 2Bl 28 Volt Battery Charger - (OI IV-5.3.2) 2C2 125 Volt Battery Charger - (OI IV-5.3.2) 2B Ventil 230V Vital Control Center 25 Switch Gear Room Exhaust Fan (2B Ventil CC - 2A) 22 Switch Gear Room'Exhaust Fan {2B Ventil*cc - 3A)

Battery Room Exhaust Fan (2B Ventil CC - 3J) 10.,6 Position Equipment Operators at the Auxiliary Feedwater level control valves 21-24AF11 to be available to operate vital equipment. Establish communication via sound powered headsets *

• Salem Unit 2 SUP 90.7, Rev. 2

10.7 Clear the Auxiliary Building of all non-essential personnel and announce over the public address system that a blackout test will be beginning shortly.

10.8 Place both pressurizer spray valves in manual and closed. (2PS1 and 2PS3) 10.9 Reduce charging flow to the minimum required to maintain Seal Injection flow.

10.10 Isolate RCS letdown by closing the following valves:

2CV2, 2CV277, 2CV3, 2CV4 2CVS 10.11 Close charging line stop valves 2CV77 and 2CV79 once letdown flow is stopped.

Establish excess letdown if necessary to control pressurizer level. See precaution 9.11 10.12 Record initial data on Data Sheet #2 & #3 Initial and date all recorder charts per paragraph 8.3.

10.13 Start the computer trend block set up per paragraph 8.2 printing.

10.14 Start Brush Recorders, on slow speed.

CAUTION: Monitor critical plant parameters (see precaution 9.7). If it is necessary to restore power to vital equipment, log any actions taken and reasons on data sheet #1.

• If necessary, the 2B 460 and 230V Vital distribution may be energized by closing breaker 2B4D. This will allow operation of the following equipment:

22 Containment Fan Coil Unit 24 Containment Fan Coil Unit 2B Vital Heat Tracing Transformer 22 Reactor Shield Vent Fan

' 22 Reactor Nozzle Support Fan 21 Charging Pump Room Cooler 22 Compone.nt Cooling Pump Room Cooler If the 2A or 2C Vital Buses must be energized, ensure all equipment on the bus not to be started (refer to Electrical Distribution Breaker Lineup and deviation sheets) is either turned off at the console or has its supply breaker open before closing the feeder (2A4D or 2C4D)

• 10.15 As quickly as possible, shutdown the following equipment:

NOTE:: Zero Time a>.

Backup Groups 21, 22 and Control Group of Pressurizer Heaters bl 21, 22 Auxiliary Feed Pumps c) Breaker 2A4D Feed to 2A 460 and 230V Vital Buses d) Braker 2B4D Feed to 2B 460 and 230V Vital Buses el Breaker 2C4D Feed to 2C 460 and 230V Vital Buses f) Breaker 2HSD Feed to 2H 460 and 230V Buses

• g) Breaker 2E6D Feed to 2EP.pressurizer and 2E 460V Buses hl Breaker 2F3D Feed to 2FL Lighting Bus i) Breaker 2FSD Feed to 2F 460 and 230V Buses j) Breake;r 2G6D Feed to 2GP Pressurizer and 2G 460V Buses Salem Unit 2 SUP 90.7, Rev. 2

10 .16 Verify 23 Auxiliary Feed Pump star.ts in auto as steam generator levels f_all to the low-low level setpoint and that Auxiliary Feed Flow is established at the rate pre-set per paragraph 4.6. At this _point it is expected that Tavg will begin to drop at a rate of approximately 50°F per hour as steam generator level recover.

10.17 As Steam Generator Levels return to ~ 33% allow operator to assume manual local control of the 2l-24AF11 Steam Generator Level control valves. These valves should be placed in the fully open position in the control room.

Record time full local control established time.

10.18 As Tavg recovers to~ 550°F, verify the main steam PORV's (21-24MS10) maintain steam pressure approximately 1025 psig.

10.19 Maintain Steam Generator level at approximately 33% and steam pressure approxi-mately lOi5*psig for a two-hour period from the time of the simulated blackout.

NOTE The pressurizer water level is not expected to rise above 70%, however, if it should put excess letdown in service to reduce RCS water volume.

Maintain letdown until level reaches 50%. (Note time letdown started and terminated on data sheet #1) .

10.20 At the end of the 2-hour period, resume control room operation of the Steam Generator Level control valves (2l-24AF11) one at a time. Slowly operate the valve in the closed direction until the positioner is free of the hand jack (indicated by a drop in Auxiliary Feed Flow). Instruct the operator to place the hand jack in the neutral position.

10.21 Restore station power by closing the following breakers.

a) Breaker 2A4D Feed to 2A 460 and 230V Vital Buses bl Breaker 2B4D Feed to 2B 460 and 230V Vital Buses c) Breaker 2C4D Feed to 2C 460 and 230V Vital Buses d) Breaker 2H5D Feed to 2H 460 and 230V Buses e) Breaker 2E6D Feed to 2EP pressurizer and 2E 460V Buses f) Breaker 2F3D Feed to 2FL Lighting Bus g) Breaker 2FSD Feed to 2F 460 and 230V Buses h) Breaker 2G6D Feed to 2GP pressurer and 2G 460V Buses 10.22 Start the 21 and 22 Auxiliary Feed Water Pumps and establish Steam Generator Feed. Shutdown the 23 Auxiliary Feed Pump.

.- 10.23 10.24 Res~ore RCS pressure to 2235 psig and place pressurizer heaters and sprays in automatic IAW OI II-2.3.S.

TUrn off Data Recorders and computer trends and note the time on the charts.

Salem Unit 2 SUP 90.7, Rev. 2

10.25 Check the following equipment and restore normal electrical lineup and place in service as necessary.

2B 460V Vital Bus 22 Containment Fan Coil Unit 24 Containment Fan Coil Unit 22 Switch Gear Room supply Fan 22 Auxiliary Building Exhaust Fan 22 Chiller 2B 230V Vital Bus 2B Vital Instrument Inverter (2B5Y) 20 Vital Instrument Inverter (2BllY) 2Bl 125V Battery Charger (OI IV-5.3.2) 2Bl 2ev*Battery Charger (OI IV-5.3.2) 2C2 125V Battery Charger (OI IV-5.3.2).

2B Ventilation 230V Vital Control Center 25 Switch Gear Room Exhaust Fan (2B Ventil cc - 2A) 22 Switch Gear Room Exhaust Fan (2B Ventil cc - 3A)

Battery Room Exhaust Fan (2B Ventil cc - 3J) 10.26 Re-establish normal letdown and charging, return pressurizer level to normal and place level control in auto IAW OI II-3.3.1.

• - 10.27 10.28 Restore control air to dampers 2ABS2 2ABS4 and 2ABS6 at the 23 Auxiliary Feed Pump Room.

Remove the block of the input logic of Safety Injection on Hi steam line b.P in accordance with SUP 90.0, Appendix A unless the next test to be performed requires the modifications to be installed. If this is the case, disregard this step, place N/A in signature line and initial.

10.29 Remove modification to Hi steam flow coincident with Lo S/G pressure or Lo Tav Safety Injection input in accordance with SUP 90.0, Appendix A unless the next test to be performed requires this modification to be made. If this is the case, disregard this step, place N/A in the signature line and initial.

10.30 Remove block of a~tomatic actuation of Safety Injection in accordance with SUP 90.0, Appendix A unless the next test to be performed requires this lockout.

If this is the case, disregard this step, place N/A in the signature line and initial.

. Salem Unit 2 SUP 90.7, Rev.2 I

11. 0 TEST COMPLETION 11.1 Cozrunents 11.2 Changes to SPM 11.3 Signature Test Engineer Date Senior Shift Supervisor/Shift Supervisor Date I

• Quality Assurance Date Station Technical Advisor Date Salem Unit 2 /

-ls- SUP 90. 7, Rev. 2

APPENDIX A P-250 Digital Trend Parameters Parameter Computer Point Pressurizer Pressure Channel 1 P0480A Pressurizer Level Channel 1 L0480A RCS Loop 21 Hot Leg Temperature T0419A RCS Loop 21 Narrow Range Tav T0400A RCS Loop 21 Cold Leg Temperature T0406A RCS Loop 22 Hot Leg Temperature T0439A RCS Loop 22 Narrow Range Tav T0420A RCS Loop 22 Cold Leg Temperature T0426A RCS Loop 23 Hot Leg Temperature T0459A RCS Loop 23 Narrow Range Tav T0440A RCS Loop 23 Cold Leg Temperature T0446A RCS Loop 24 Hot Leg Temperature T0479A RCS Loop 24 Narrow Range Tav T0460A RCS Loop 24 Cold Leg Temperature T0466A Steam Generator 21 Pressure P0400A Steam Generator 21 Narrow Range Level L0400A Steam Generator 22 Pressure P0420A Steam Generator 22 Narrow Range Level L0420A Steam Generator 23 Pressure P0440A Steam Generator 23 Narrow Range Level L0440A Steam Generator 24 Pressure P0460A Steam Generator 24 Narrow Range Level L0460A Source Range Channel l (Quadrant 1) N0031A Source Range Channel 2 (Quadrant 2) N0032A Hottest Incore Thermocouple U0090A Pressurizer Surge Line Temperature T0482A Pressurizer Pressure Channel II Pressurizer Pressure Channel III NOTE:

At the discretion of the Test Engineer, a redundant computer point may be ~ubstituted where available.

Calculated Margin to Saturation Conditions

\

Salem Unit 2 SUP 90. 7, Rev. 2

APPENDIX B SRO's Participating In Test SRO's.Observing Test SUP 90. 7 Salem Unit 2 - Rev. 2

APPENDIX B (cont.)

RO's Participat~ng In Test RO's .Observing Test SUP 9~, 7 Salem Unit 2 Rev.. 2