ML20206T847

Rev 17 to Surveillance Procedure 6.3.12.1, Diesel Generator Operability Test

ML20206T847
Person / Time
Site:	Cooper
Issue date:	03/06/1986
From:	Black B, Brundardt R NEBRASKA PUBLIC POWER DISTRICT
To:
Shared Package
ML20206T643	List: ML20206T638 ML20206T655 ML20206T679 ML20206T705 ML20206T726 ML20206T748 ML20206T776 ML20206T792 ML20206T817 ML20206T843 ML20206T847 ML20206T875 ML20206T899 ML20206T913 ML20206T921 ML20206T931 ML20206T937 ML20206T949 ML20206T966 ML20206T981 ML20206T986 ML20206U003
References
6.3.12.1, TAC-54682, NUDOCS 8607080240
Download: ML20206T847 (8)

Text

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COOPER NUCLEAR STATION OPERATIONS MAriUA1.'

SURVEILLANCE PROCEDURE 6.3.12.1 DIESEL GENERATOR OPERABILITY TEST

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, 1 I. PURPOSE -

A. To provide detailed instruction for station pe.;sonnel to check oper-ability of DG-1 and DG-2.

II. DISCUSSION A. The primary purpose for checking the diesel generator operability is to ensure that on a loss of power the diesel generator will come on the line and pick up necessary loads to ensure a safe reactor shutdown.

III. REFERENCE MATERIAL A. USAR. ,

1. Volume IV,Section VIII, Subsection 5.0, Amendment 9, 13, 14, 15, and 16.

B. Flow Diagrams.

1. B & R Drawing 2011; Turbine Oil Purification and Transfer System and Diesel Oil System, Sheet 1.

2. B & R Drawing 2077; Diesel Generator Building Service Water, Starting Air, Fuel Oil, Sump System, and Roof Drains.

3. Cooper Bessemer.

a. KSV-46-5.

b. KSV-47-8.

c. KSV-48-5.

d. KSV-51-6. .

C. Vendor Manuals.

I '. Emergency Diesel Generator System Instruction Manual 69-21-1.

D. Electrical Diagrams.

1. B & R Drawing 3002; Auxiliary One Line Diagram.

2. B & R Drawing 3004; Auxiliary One Line Diagram.

3. B & R Drawing 3019; Auxiliary One Line Diagram.

1 8607080240 860630 PDR ADOCK 05000298 p ,

PDR A

Rsvised By/Date Reviewed By/Date Appro ed By/Date Rev Procedure Pa e 1 Of B. Black 2/24/86 R. Brungardt 3/5/86  % J [f6 17 6.3.12.1 6 Pages

4. B & R Drawing 3045; control Elementary Diagram.

5. B & R Drawing 3058; DC One Line Diagram.

6. Cooper Bessemer GS-262-743, Sheets 1 through 6.

7. Cooper Bessemer KSV-36-7.

IV. PREREQUISITES A. The diesel generator (DG-1 or DG-2) to be tested is in a standby condition according to System Operating Procedure 2.2.20, Section C.,

with the exception that the diesel generator Breaker Mode switch position to local or remote depending on the location of operation.

B. Establish communications between the Diesel Generator Rooms and Control Room. ,

C. Ensure the plant is in a steady state condition and no other tests in progress on the diesel generators.

V. LIMITATIONS

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A. Surveillance Requirements - Technical Specifications Section 4.9.A.2.a.

1. Each diesel generator shall be started manually and loaded to not <

50% of rated load for no < 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> once each month to demonstrate operational readiness.

B. Administrative Limits.

1. All discrepancies shall be recorded in the Shift Supervisor's log.

2. Attachments "A" and "B" shall be used to record the test and filed as part of the station records.

3. All testing shall be coordinated with the Control Room Operator.

4. The diesel generators should be run > 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> at > 50% of rated load when started for other than monthly tests. Monthly test requires >

4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and > 80% of rated load. ,

5. Test only one diesel generator at a time. .

6. The diesel fuel oil day tanks will be checked for water af ter each operation of the diesel where the period of operation was I hour or longer.

VI. PRECAUTIONS A. Wear ear protection in the Diesel Generator Rooms whenever a diesel is running.

Proc; dure Number 6.3.12.1 Date c3-4. ) b Revision 17 Page 2 Of 6 Pages

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B. The service water system must be in operation prior to starting the' diesel engine.

C. Completely synchronize the generators before closing the breakers when-paralleling the unit with an energized bus.

D. Trip Breaker IAF (Breaker IBG) should the main generator trip. and the startup ~ transformer deenergizes (ACB-3306, ACB-3310, and ACB-3312 tripped) while testing the diesel generators.

When reading the U-tube manometer, add the columns together.to obtain E.

the reading.

VII. TEST EQUIPMENT A. Stopwatch.

VII

I. PROCEDURE

A. Diesel Generator Operability Test.

1. Obtain permission and ' signature from the Shift Supervisor before performing the test.

2. Establish communications between the Diesel Generator Room for the associated diesel to be tested and the Control Room.

Note: Test only one diesel generator at a time.

3. Assure that the proper indication for the test condition is dis-played on the safety system status panel.

4. Ensure the diesel generator to be tested is in standby condition according to System Operating Procedure 2.2.20, Standby AC Power System (Diesel Generator), Section C.

a. Check that the engine base lube oil level is between the normal operating level mark and 2" above on the sight glass.

b. Check that the engine hydraulic speed governor oil level is in the normal band on its site glass.

c. Check that the jacket water surge tank level is normal.

d. Check the diesel fuel oil day tank for i normal level between 42" and 58 1/2". To check the level, open diesel generator day tank level test valve DGDO-57 (DGDO-60), check the level, and then close DGDO-57 (DGDO-60).

5. The Breaker Mode selector. switch for the diesel generator is in the REMOTE position .on' Bd-C and in the REMOTE position on the diesel generator board for' operation of the diesel generator from the-Control Room.

Procedure Number 6.3.12.1 Data e? /,,-e b Revision 17 Page 3 Of 6~ Pages

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6. Place the Droop-Parallel switch in the PARALLEL WITH BUS position.

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7. Place the' Unit-Parallel switch in the PARALLEL WITH BUS position.

i j 8. Turn the Synchronizing switch associated with the diesel generator

to be tested (Breaker IFE or Breaker IGE) to the ON position.

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,. 9. Close Breaker IFE or Breaker IGE.

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i 10. Run the pre-post lube oil pump for about 1 minute before starting the diesel.

I j 11. Turn the diesel generator Start /Stop switch to START and' hold the b

switch in the START position for 2 to 3 seconds after the Running

, light (red) comes on.

i i a. Check and record the starting time to reach , rated voltage and

frequency (required only for monthly test).

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12. Verify engine pressures are normal before loading the diesel (refer

, to the limits on Attachment "B").

13. Turn the Synchronizing switch _for, the diesel generator breaker to

, be tested (Breaker EGI or Breaker EG2) to the ON position.

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, 14. Check the speed of the diesel and adjust the speed as necessary to i cause the synchronizing scope to run slow in a clockwise (fast) l direction by adjusting the Governor Control switch on Bd-C to raise j or lower. -

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15. Check the voltage and ensure that it is slightly higher than the bus on which the generator is going to be paralleled by adjusting; 4

the Manual Voltage Control Adjust switch to the LOWER or RAISE ,

position.

l 16. Check that the synchronizing scope is going slow in a clockwise manner, check that the diesel generator voltage is slightly higher than the bus voltage. Close Breaker EGI or Breaker EG2 for the I associated diesel generator 5* before the 12 o' clock position on  ;

the diesel generator synchronizing scope on Bd-C.

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*17. Increase the diesel generator load to > 80% of rated load by

, increasing the speed of the diesel with the Governor Control

] switch.

i 1 *18. Run the diesel generator > 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> at 3200 KW or greater load.  !

1 Read and record all parameters after 15 minutes, after i t/2 hours. I j and after 3 1/2 hours.

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a. Read the control air pressure- (Local PI located above the overspeed trip) and record on Attachment "B". Notify the Shift l Supervisor if below 22 psi.

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l ?rocedure Number 6.3.12.1 Date' c9 /,,.dk Revision 17 Page 4 Of 6 Pages

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b. Check the engine and governor lube oil levels and verify they are above or at normal level. Notify the Shift Supervisor if.

they are below normal level.

c. Check for external oil leakage, water leakage, and air leakage.

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19. Af ter the diesel has been run the required time, reduce the gener-ator load to 1000 KW and allow the diesel to cool. Observe that the cylinder exhaust temperatures decrease (S 5 minutes).

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20. Reduce the generator load to < 400 KW and adjust the voltage regulator, as necessary, to keep the KVARs low, i 21. Trip open the associated diesel output Breaker EGI or Breaker EG2.

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22. Trip open the associated bus Breaker 1FE or Breaker 1GE.

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23. Place the Droop-Parallel switch to the DEENERGIZED BUS (' AUT0) position.

24. Place the Unit-Parallel switch to the DEENERGIZED BUS (AUT0) position.

i 25. Momentarily place the Rated Speed Reset switch to the RESET position.

. Observe the synchronizing scope to verify it is turning -slow in the

! fast rotation. Return the Rated Speed Reset switch to the OFF position.

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26. Adjust the diesel generator voltage to slightly higher than bus voltage.

j 27. Place the diesel engine control switch to the STOP position.

j a. Locally check for proper operation of the air intake manifold I butterfly valves located near the turbocharger inner coolers.

j 28. Run the pre-post lube oil pump for 2 to 5 minutes.

,l 29. Place the diesel generator Breaker Mode switch to the AUTO position.

30. Verify the diesel generator is returned to the STANDBY condition t

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per System Operating Procedure 2.2.20, Section C.

31. Check the day tanks for water by opening the drain'off the bottom ,

j of the nuction strainer for.the fuel pump. .If it is suspected that I water has been carried on, the entire fuel line from the day tank i to the injectors shall be flushed.

32. Restore the safety system status panel to the NORMAL position.

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' roc: dure Number 6.3.12.1 Date 3 Sl3 Revision 17 Page 5 Of 6 Pages

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n IX. -ATTACHMENTS

'A. Diesel Generator Operability Test Data Sheets.

B. Diesel Generator Data Sheet.

C. Diesel Generator Extended Run Data Sheets.

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l l?rccedure Number 6.3.12.1 Date d Jo.& Revision 17 Page 6 Of 6 Pages l i

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ATTACIGIENT "A" SURVEILLANCE PROCEDURE 6.3.12.1 DIESEL CENERATOR OPERABILITY TEST i

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) PROCEDURE DG-1 DG-2 A. Diesel Generator Operability Test. XXXX XXXX 3 1. Obtained permission and signature from Shif t Supervisor.

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2. Established communications between Diesel Generator Room and ---

XXXX XXXX

Control Room.

3.. Assured that proper indication for test condition is displayed XXXX XXXX on safety system status panel. - --- - - - - - - - -- '

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Ensured diesel generator to be tested is in standby condition XXXX XXXX per System Operating Procedure 2.2.20, Section C.

a. Checked that engine base lube oil level is between normal -------- -XXXX XXXX operating level mark and 2" above on sight glass.

b. Checked that engine hydraulic speed governor oil level is XXXX X,u x

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in normal band on its site glass. --- ---- ------------

! c. Checked that jacket water surge tank level is normal. .

d. Checked diesel fuel oil day tank for normal level.

1 5. Verified Breaker Mode selector switch is in REMOTE. ----w--

l 6. Placed Droop-Parallel suitch in PARALLEL WITH BUS.

! 7. Placed Unit-Parallel switch in PARALLEL WITH BUS.

I 8. Turned Synchronizing switch for Breaker 1FE (1GE) to ON.-

l 9. Closed Breaker IFE (IGE). .

j 10.

Ran pre-post lube oil pump for about 1 minute before starting XXXX XXXX diesel. ------------------------- ------- ---- -

i 11. Started diesel. .

Note: Step a. required only for monthly test. XXXX XXXX j a. Starting Time: DG-1: seconds; DG-2: seconds.

XXXX XXXX l

q 12. Verified engine pressures are normal before loading diesel XXXX XXXX

} (refer to limits on Attachment "B"). "

j 13. Turned Synchronizing switch for Breaker EG1 (EG2) to ON.

14. Adjusted speed until synchronizing scope is rotating slowly XXXX XXXX j in FAST direction. *

15. Adjusted generator voltage slightly higher than bus voltage.

{ 16. Closed Breaker EG1 (EG2).

• 17. Increaced diesel generator load to > 80% and recorded diesel XXXX XXXX generator parameters on' Attachment "B". ---------- --

• 18. Ran diesel generator > 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> at 3200 KW or greater load and XXXX XXXX

! recorded all parameters after 15 minutes, after 1 1/2 hours, XXXX XXXX 1 and af ter 3 1/2 hours. - --- ---- - - --

l 19. Reduced generator load to 1000 KW and allowed diesel to cool XXXX XXXX

(* 5 minutes).

20. Reduced generator load to < 400 KW.

• j 21. Tripped open Breaker EG1 (EG2). '

j 22. Tripped open Breaker 1FE (1GE).

i 23. Placed Droop-Parallel switch to DEENERG1 ZED BUS (AUT0). -- --

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' Placed Unit-Parallel switch to DEENERGIZED BUS (AUT0).

25. Momentarily placed Rated Speed Reset switch to RESET, then- XXXX XXXX j t o 0 FF . ----- - - - - - - - - - - ------- -- --------------

! 26. Adjusted diesel generator voltage to slightly higher than XXXX XXXX l bus voltage.

I 1 27. Placed diesel engine control switch to STOP. ,

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?rocsdure Number 6.3.12.1 Date s ! 9 4, Revision 17 Page 1 Of 2 Pages

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ATTACilMENT "A" SURVEILLANCE PROCEDURE 6.3.12.1 DIESEL CEKERATOR OPERABILITY TEST PROCEDURE DG-1 DG-2

a. Checked operation of shutdown butterfly valves. .

28. Ran pre-post lube oil pump for 2 to 5 minutes.

29. Placed diesel generator Breaker Mode switch to AUTO. ------ -----------

30. Verified diesel generator is returned to STANDBY condition XXXX XXXX per System Operating Procedure 2.2.20, Section C.

31. Verified no water in day tank. ----------- - - - - - - - - - - - - - - - -

32. Restored safety system status panel to NORMAL position.

Test Instrument Number:

START STOP KW LOAD

• DG-1 1 80% Load (3200 KW) *

• DG-2 1 80% toad (3200 KW)

• Tschnical Specifications loaded to not < 50% of rated load for no < 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />; Administrative loaded to not < 80% of rated load for no < 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

I TESTED BY DATE DG-1 -

DC-2 Discrepancies:

Operator /

Date Shift Supervicor / Permission To Start Date Shift Supervisor / Test Complete And Reviewed Date Shif t Supervisor / NCR Written If Required Date Work Item (s) Initiated If Required Rsviewed By /

Date  ;

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?rocedure Number A 1L19.1 Date ( 2 - /o . 9 63 Revision 17 Page 9 Of 9 Pages l

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