ML20206T679
| ML20206T679 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 06/12/1986 |
| From: | Brungardt R, Nosbisch K NEBRASKA PUBLIC POWER DISTRICT |
| To: | |
| Shared Package | |
| ML20206T643 | List: |
| References | |
| 6.3.3.1, TAC-54682, NUDOCS 8607080205 | |
| Download: ML20206T679 (14) | |
Text
COOPER NUCLEAR STATION UPERAT10NS MANUAL g ' SURVEILLANCE PROCEDURE 6.3.3.1 HPCI TEST MODE SURVEILLANCE OPERATION I. PURPOSE A. To provide a detailed instruction for station personnel to assess the operational readiness of the high pressure coolant injection (HPCI) pump.
II. DISCUSSION A. The HPCI pump operability, pump flow controller, flow rate, pressure, and vibration are verified during this test by using the HPCI system test flow path. Pump suction is from the emergency condensate storage tanks, through the HPCI pump, through the test flow line, and back to the emergency condensate storage tanks. If during this test, either low reactor water level (> -37") or high drywell p'ressure (< 2 psig) occur, system initiation signals, HPCI system test valve HPCI-MO-21 closes, and HPCI system returns to auto' initiation lineup. ~
Note: Surveillance Procedure 6.3.3.4, HPCI Turbine Test Potentiometer And Pump Operability, can be performed to check the operation of the test potentiometer if so disired.
III. REFERENCE MATERIAL A. USAR.
- 1. Volume II,Section VI Subsection 4.1.
- 2. Volume III,Section VII, Subsection 4.3.2.
B. Flow Diagrams.
- 1. B & R Drawing 2041; Reactor Building Main Steam System.
- 2. B & R Drawing 2044; HPCI System.
C. Vendor Manuals.
- 1. G.E. Operations and Maintenance Instruction Volume V, Section HPCI.
- 2. G.E. Operations and Maintenance Instruction Volume IX, Part I, Section HPCI.
D. Electrical Diagrams.
- 1. G.E. Drawing 791E271; Elementary Diagram.
k P 1 Rsvised By/Dat. Reviewed By/Date 'prov'd By/Date Rev Procedure Page 1 Of j K. Nosbisch 5/16/86 R. Brungardt 6/6/86 -
- ~-- 23 6.3.3.1 7 Pages!
a 1 1
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- 2. G.E. Drawing 729E589; Functional Control Diagram.
- 3. B & R Drawing 3007; Auxiliary One Line Diagram.
4 B & R Drawing 3058; DC One'Line' Diagram.
- 5. B & R Drawing 3010; Vital One Line Diagram.
- 6. B & R Drawing 3046; Control Elementary Diagram.
E. Miscellaneous.
l
- 1. CNS Inservice Test Program.
IV. PREREQUISITES A. Emergency condensate storage tanks available for pump suction supply.
l B. REC system available (preferred) for HVAC area coolers. ;
i C. HPCI area fan coil unit (FCU) available-and in service (preferred). 1 D. HPCI turbine lube oil reservoir full to normal range as indicated.
E. SGT system in operation.
F. Plant air system in service and supplying instrument air to the HPCI system.
l V. LIMITATIONS A. Surveillance Requirements - Technical Specification Sections 4.5.C.1.b.,
4.5.C.I.d., 4.5.C.1.e., 4.5.G.I., 4.5.H., and 4.6.G. (IST).
- 1. Pump operability is once per month. ,
- 2. Once per 3 months at
- 1000 psig steam pressure, check the pump flow rate. The pump shall be capable of delivering 4250 gpm at all reactor pressures from 150~ psig to rated. Operation on or to the right of the dotted line of Attachment "C". assure this capability.
- 3. Once per operating cycle at + 150 psig- steam pressure, check the pump flow race. The pump shall-be capable of delivering 4250 gpa at all reactor pressures from 150 psig to rated. Operation on or i to the right of the dotted line of Attachment "C" assure this '
capability. I
- 4. Discharge piping filled is once per month.
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- 5. Unit cooler operability checked during testing of the associated pump.
Procedure Number 6.3.3.1 Date 4. ra. //,, Revision 23 Page 2 Of 7 Pages
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> . 1 B. . Administrative Limits.
- 1. Attachment "B" shall be used to record the test and filed as part i
, of the station records. I
- 2. All testing shall be coordinated with the Control Room Operator.
- 3. If possible, obtain a transient. recording of stop valve position:
and balance chamber pressure once every 3 months (requires I/C test .i equipment). 1 VI. PRECAUTIONS
.A. Do not overpressurize the HPCI low pressure pipe in the test return line at the emergency condensate storage tanks. The manual return valve must be open before the HPCI system is placed in operation.
B. Warm the HPCI . steam supply ' line slowly when placing the system in service.
C. When operating the HPCI system, at any time other than an automatic j'
initiation, the auxiliary oil pump control switch must be positioned to start and retained in that position u,ntil the unit .is shut down.
- . Note
- The auxiliary oil pump will not restart automatically on turbine coastdown unless either an initiation signal is present or the
- control switch is positioned to start.
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D. Do not operate the turbine with oil temperature < 60*F or > 160*F. ,
1 E. Observe that the gland seal condenser condensate pump always has a j discharge path valved into operation or that the pump breaker is
- deenergized.
- Note
- .During refuelings, maintenance outages, or testing, the system i
relays may indicate an initiation signal when the system is actually valved out of service. When the initiation signal is
, present, the air operated condensate pump discharge valves do not open, and the pump will overheat.
l F. During operation of the HPCI system, closely monitor the suppression j pool temperatures and place the Suppression Pool Cooling Mode of the i RHR system in operation, as required, to maintain the pool temperature
- < 95'F (can go to 105'F during testing but must be returned to < 95'F within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />)'(refer to System Operating Procedure 2.2.69).
G. During startup or shutdown, when performing 150 psig flow rate test,
- use caution that the heatup or cooldown rate of 100*F/Hr when averaged
' over a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> period is not exceeded.
H. Be aware of radiological concerns around HPCI equipment.
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- i. Procsdure Number 6.3.3.1 Date A la-2fc Revision- 23 Page 3 Of 7' Pages i
'VII. ' TEST EQUIPMENT A. Stopwatch.,
B.
Model 306 or Model 308 hand-held IRD vibration meter.
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C. Two channel brush recorder for transient traces.
VII
I. PROCEDURE
Note: Those valves followed by (IST) shall be timed on a quarterly basis.
Note: For Inservice Testing the following check valves shall have been
exercised upon a successful surveillance test. A successful test is one which has no discrepancies; HPCI-LVSC-44, HPCI-CV-10. HPCI-CV-13, HPCI-CV-14 HPCI-CV-15 HPCI-CV-16, HPCI-CV-17 HPCI-CV-18, _and HPCI-CV-19.
Note: Recording of the exercised check valves - (IST Review) shall be accomplished at least once every 3 months (Engineer). -
A. HPCI Test Mode Surveillance Operation.
- 1. Obtain permission and signature
- from the Shift Supervisor before starting the test.
- 2. Ensure the proper indication for the test condition is displayed on the safety system status panel.
- 3. Open valves HPCI-311 and HPCI-312 (high point vent).
- 4. Observe that water flows freely.
- 5. Close valves HPCI-311 and HPCI-312.
- 6. Open valves HPCI-302 and HPCI-303 (high point vent).- .
1
- 7. Observe that water flows freely.
- 8. Close valves HPCI-302 and HPCI-303.
- 9. Start or ensure that the SGT sfstem is running.
- 10. Start the gland seal condenser exhaust b' lower by placing the control switch on panel 9-3 to start.
- 11. - Turn the vibration indicator and recorder on.
- 12. Confirm flow controller HPCI-FIC-108 in AUTO and set at 4250 spa. j
- 13. Open HPCI-MO-21. I I
I Procedure Number 6.3.3.1 Date (. . t Ar s" . Revision 23 Page 4 Of 7 Pages
- 14. Record the pump inlet pressure.
- 15. Place the control switch for HPCI-MO-24 to the OPEN position.
Note: Perform Steps 16. and 17. simultaneously.
- 16. Place the control switch for steam supply block valve HPCI-MO-14 to the OPEN position (IST).
- 17. Start the turbine by placing the auxiliary oil pump control switch on panel 9-3 to start.
- 18. Check that the HPCI governor position lights indicate the governor valve opens.
- 19. Check that the turbine;stop valve indicating lights indicate open.
- 20. HPCI Room FCU HFC-R-1G. ~
- a. Verify locally that FCU HFC-R-1G starts. *
- b. Observe REC-TCV-863 opens to control temperature.
- 21. Throttle HPCI-MO-21, if necessary', to maintain discharge pressure l at 1060 psig (required only for quarterly flow test).
- 22. Verify valve HPCI-MO-25 (minimum flow) closed.
- 23. Ensure that flow equals 4250 gpm and discharge pressure (required only for quarterly test flow) is 1060 psig. 4250 gpn and 1060 psig are required so that turbine speed can be analyzed. Allow the pump to run 5 minutes and record the required data.
Note: When running the test for monthly pump operability or only to prove operable because some other safety-related system j is inoperable, it is not necessary to run for 5 minutes nor
. is it necessary to take data on Page 3 of Attachment "B".
d
- 24. Insure the controller output signal does not indicate > 100.
- 25. Check the turbine vibration recorder and record the maximum vibra-tion observed, rpm, and pump flow rate. If the reading exceeds 2 mils, notify the Shif t Supervisor. ,
- 26. Check that the auxiliary oil pump has shut down indicating that the in-line main oil pump is operating. The auxiliary oil pump control remains in the START position.
, 27. Check the gland seal condenser for proper operation.
. 28. Check the level in the emergency condensate storage tanks. The level should remain about the same as prior to starting.
4 i
i Proccdure Number 6.3.3.1 Date
.. G JL Revision 23 Page 5 of 7 Pages a- - n e -m e- . .e--. -, . -,- -, - - , - - - - - - , - , + - - - - - - - -e
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- 29. Observe the turbine and pump temperatures indicated on HPCI-TR-115 on panel 9-21.
- 30. Temperatures during operation should be as follows:
- a. Oil temperature between 110*F and 160*F.
- b. Thrust bearing < 180*F.
- c. Turbine casing < 300*F.
- 31. Check the suppression pool water temperatures and place the RHR '-
system in the Suppression Pool Cooling Mode if necessary (100*F maximum during testing, must be < 90*F within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />).
- 32. Record the required data on Attachment "B". I 2
- 33. Slowly reduce the setpoint of flow controller HPCI-FIC-108 to 500 gpm below the'present flow.
Note: If HPCI auto initiation occurs, immediately return flow controller HPCI-FIC-108 setpoint to 4250 gpa.
34 Verify that the turbine runs back to the setpoint flow and is stable with variation of < ! 50 gpm.
- 35. Return flow controller HPCI-FIC-108 setpoint to 4250 gpm.
- 36. Depress the turbine Trip button and hold it in the depressed position.
- 37. Place the control switch for HPCI-MO-14 to the CLOSED position (IST).
- 38. When HPCI-MO-14 indicates closed, release the turbine Trip button.
- 39. Verify valve HPCI-M0-25 (minimum flow) closed.
- 40. Place the control switches for HPCI-MO-21 and HPCI-MO-24 to the CLOSED position.
- 41. Place the control switch for the gland seal condenser exhauster to the STOP position on panel 9-3 and then return to AUTO.
- 42. Return the SGT system to standby.
- 43. Immediately upon completion of HPCI turbine operation, break vacuum siphon on exhaust line per the following steps:
Caution: If during this procedure, torus pressure increases when blowing air into the exhaust line, secure blowing air.
Proc dure Number 6.3.3.1 Date '
' . 9 k- Revision 23 Page 6 Of 7 Pages l
Note: The Operator shall be present at all times in the HPCI Room during this procedure.
- a. Hook up the drain hose downstream of HPCI-V-43 line and direct to the floor drain.
- b. Hook up service air to the drain line on LS-679 drain pot and open the service air valve,
- c. Open HPCI-V-42 and HPCI-V-43.
- d. Open HPCI-V-260 for 5 to 10 minutes, then shut HPCI-V-260 (observe above caution).
- e. Repeat Step 4. if water is sti,ll observed draining from HPCI-V-43 drain hose af ter 10 to 15 minutes after Step 4. is per-formed. If no water is draining, continue with Step 6.
- f. Shut HPCI-V-42 and HPCI-V-43 and remove the hoses attached previously. -
44 Allow the auxiliary oil pump to run for
- 15 to 20 minutes after the turbine has stopped turning.
- 45. Place the' auxiliary oil pump con rol switch on panel 9-3 to the AUTO position.
- 46. Turn the HPCI system to standby status.
- 47. Restore the safety system status panel to normal.
- 48. Notify the Shif t Supervisor that the test has been completed.
IX. ATTACHMENTS A. Not Applicable.
B. HPCI Test Mode Surveillance Operation Data Sheets.
C. HPCI Pressure Vs. Flow Curve Graph.
D. Data Points For Vibration Data Diagram.
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Proccdure Number 6.3.3.1 Date ' . r 2 s' ' . Revision 23 Page 7 Of 7 Pages
LOOPER NUCLLAK SI A110N ' OrtKA110Ns MAhuAL ATTACHMENT "B" SURVEILLANCE PROCEDURE 6-3.3.1 HPCI TEST MODE SURVEILLANCE OPERATION k
FUNCTIONAL TEST i
NOTE: Those valves followed by (IST) shall be timed on a quarterly basis.
IST TIME IN STEP
- PROCEDURE LIMIT SECONDS PERFORMED 1.
~
Obtained permission to start test.
- 2. Ensured proper indication for test condition is XXXXXXX displayed on safety system status panel. -------
+
- 3. Opened HPCI-311 and HPCI-312.
- 4. Observed water flows freely.
i 5. Closed HPCI-311 and HPCI-312. ---- -
- 6. Opened HPCI-302 and HPCI-303. .
- 7. Observed water flows freely.
] 8. Closed HPCI-302 and HPCI-303. --- -----
l 9. Started or ensured SGT system is running.
- j 10. Started gland seal condenser exhaust blower.
1
- 11. Turned vibration indicator and recorder on. - - ' -----
l 12. Confirmed flow controller HPCI-FIC-108 in AUTO XXXXXXX l and set at 4250 gpm.
- 13. Opened HPCI-MO-21.
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- 14. Recorded pump inlet pressure. ' '
t
- 15. Opened HPCI-MO-24. I i
Note: Perform Steps 16. and 17. simultaneously. --------- XXXXXXX j '
- 17. Started auxiliary oil pump.
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- 18. Verified governor valve opened. ------- --
- 19. Verified turbine stop valve opened.
- 20. HPCI Room FCU HFC-R-1G. XXXXXXX
- l
- a. Verified locally FCU HFC-R-1G starts. --- ----- --
- b. Observed REC-TCV-863 opens.
- 21. Throttled HPCI-MO-21, if necessary, to maintain XXXXXXX 1
discharge pressure at 1060 psig (required only ---- - XXXXXXX
} for quarterly flow test).
- 22. Verified HPCI-MO-25 closed.
, 23. Ensured parameters are met (Q = 4250 and Pd = - --- ------ XXXXXXX 1060 (required only for quarterly flow test) if XXXXXXX l possible), held for 5 minutes, and recorded data.
I Note: See Note in procedure body if running for - - ---- XXXXXXX monthly pump operability or only to prove XXXXXXX operable because come other safety-related , XXXXXXX system is inoperable. -------- - - - - - - - - - - - - - - - - - - - - - XXXXXXX
- 24. Insured controller output signal is not > 100.
4
- 25. Checked turbine vibration recorder; mils, XXXXXXX rpm, gpm (< 2 mils). -- ------ -- ---- ---
-26. Verified auxiliary oil pump is off and switch in XXXXXXX START.
- 27. Checked gland seal condenser for proper operation. ----- ------------------
- 28. Checked emergency condensate storage tanks level, i 29. Observed turbine and pump temperatures indicated XXXXXXX l
on HPCI-TR-115 on panel 9-21. ------------- - ----- - - - - - -
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l Procedure Number 6.3.3.1 'Date
~
- '. Revision 23 Page 1 of 5 Pages i
. - - - , - ..-.,..r.,,_ , . - - - . . ~ . - . _ ..-.,----.m. -,, ,.,.. ---,_ - _-, ..-,--,. , m_- -- , , - . , ,
CUUPER NUCLt,AK b1Ar10N UFt.MATLUNb MANUAL
' ATTACHMENT "B" SURVEILLANCE PROCEDURE 6.3.3.1 HPCI TEST MODE SURVEILLANCE OPERATION FUNCTIONAL TEST NOTE: Those valves followed by (IST) shall be timed on a quarterly basis, IST TIME IN STEP PROCEDURE LIMIT SECONDS PERFORMED
- 30. Recorded temperatures of turbine below.
- 31. Checked cuppression pool temperature.
- 32. Recorded required data below.
- 33. Reduced HPCI-FIC-108 setpoint to 500 gpm below- XXXXXXX present flow.
- 34. Verified pump runs back and flow is stable.
- 35. Returned HPCI-FIC-108 setpoint to 4250 gpa..
- 36. Depressed and held turbine Trip button.
- 38. Verified HPCI-MO-14 closed and released turbine
- XXXXXXX Trip button.
- 39. Verified HPCI-MO-25 closed. --------------
- 40. Closed HPCI-MO-21 and HPCI-MO-24
- 41. Placed gland seal condenser exhauster control XXXXXXX switch to STOP and then returned to AUTO.
- 42. ~~
Returned SGT system to standby.
- 43. Break vacuum siphon.on HPCI turbine exhaust line. XXXXXXX
- a. Hooked up drain hose downstream of HPCI-V-43 ----- -- - - - - - - - XXXXXXX line and directed to floor drain.
- b. Hooked up service air to drain line on LS-679 XXXXXXX drain pot and opened service air valve. -- --
- c. Opened HPCI-V-42 and HPCI-V-43.
- d. Opened HPCI-V-260 for 5 to 10 minutes, clien XXXXXXX shut HPCI-V-260. -- - --
- e. Repeated Step 4. if water is still observed XXXXXXX draining from HPCI-V-43 drain hose after 10 to XXXXXXX 15 minutes af ter Step 4. is ' performed. If no - -- -
AAAAAAA water is draining, continued with Step 6.
~
f.
Shut HPCI-V-42 and HPCI-V-43 and removed hoses XXXXXXX attached previously. - -------- -- ----
- 44. Allowed auxiliary oil pump to run for + 15 to 20 XXXXXXX minutes.
- 45. Placed auxiliary oil pump control switch to AUTO. ---------
- 46. Turned HPCI system to standby status.
- 47. Restored safety system status panel to normal.
- 48. Notified Shif t Supervisor test has been completed. -----------------
Procedure Number 6.3.3.1 Date '. . -" -
Revision 23 Page 2 Of 5 Pages
COOPER NUCLEAR STATION OPERATIONS MANUAL ATTACHMENT "B" SURVEILLANCE PROCEDURE 6.3.3.1 HPCI TEST MODE SURVEILLANCE OPERATION FUNCTIONAL TEST i
TEST
SUMMARY
TURBINE AND OBSERVED PUMP TEMPERATURE DATA MAXIMUM PERFORMED BY Oil Temperature *F 160*F Thrust Bearing *F 180*F i Turbine Casing *F 300*F l
1 FLOW PUMP REQUIRED DISCHARGE REACTOR TECH. SPEC.
< FREQUENCY PUMP FLOW FROM CURVE C PRESSURE PRESSURE LIMIT INITIALS I, 150 psi Test once/ 4250 gpm Rx Oparating Cycle 150-1000 psi 4
l WATER FLOW OBSERVED FROM TECH. SPEC. LIMIT INITIALS i
! valves HPCI-311 And HPCI-312 Discharge Piping Vented At High Point And Water Flow Observed t
Valves HPCI-302 And HPCI-303 i
FCU TECH. SPEC. LIMIT INITIALS j
I HFC-R-lG Operates Normally Unit Checked For Operability i
4 Procedure Number 6.3.3.1 Date
. . . . '.'" Revision 23 Page 3 Of 5 Pages
.~ .. ___ _ . . _ , . . _ _ _ . . _ . _ _ .._ _ . _ . . . _ _ _ _ _-- _ - _.
COOPER HUCLEAR STATION opt.KATIONS MANUAL ATTACHMENT "B" SURVEILLANCE PROCFDURE 6.3.3.1 HPCI TEST MODE SURVEILLANCE OPERATION l
l 1
l l
FUNCTIONAL TEST i
- Note
- This Data Sheet need not be. completed when procedure is being performed for monthly pump operability or to prove operable when another safety system is declared inoperable.
i 1
ACTUAL REFERENCE ACCEPTABLE ALERT REQUIRED
! PARAMETERS VALUE VALUE RANGE RANGE ACTION RANGE i Pump Inlet Pressure (Before Start) Pib 71 psig None Required None Required None Required Pump Inlet Pressure 0 < Pi < 5 Pi < 0 psig (After Start) Pia 14 psig 5 < Pi < 50 50 1 Pi i 75 Pi > 75 psig j Pump Discharge Pressure l Pd (Note 1) 1060 None Required None Required None Required i Pump Flow Rate Q (Note > 4250 gpm Rx
- 1) 4250 gpm None Required None Required
- 150-1000 psi' l 3930 < S < 4081 S < 3450 Turbine rmp(s) (Note 1) 3710 3525 to 3930 3450 i S < 3525 5 > 4081 Vibration Pt 1 Ampiitude
~
Velocity In/Sec (Note 2) .
- V <*.500 In/Sec .500 i V i .628 V > .628 In/Sec 4
Vibration Pt 2 Amplitude Velocity In/Sec (Note 2)
- V < .500 In/Sec .500 < V < .628 y > .628 In/Sec I actor Pressure 960 xxxxxxx uxxxxXX XXXXXXXXXXXXXXX XXXXXXXXXXXXXXX 1
Note 1: Due to the type of driver the Reference Values for Flow, Q, and Discharge Pressure, Pd, l
i shall be duplicated as best possible and the Turbine Speed, S, will be used to determine the operational readiness of the pump. Technical Specifications still requires flow to
> 4250 gpm. Flow shall be compared with that required by Curve C, if > 4250 gpm cannot j be obtained.
t Note 2: Maintenance Procedure 7.2.36 outlines the procedure to be used for taking vibration j readings. The vibration readings taken at Point 1 (C) and Point 2 (F) must be taken j with the vibration meter pickup in the horizontal position. See Attachment "D". The 4
readings will be taken on the west side of the bearings.
i Vibration Instrument IST Number:
j Stopwatch Number IS-
! Operator Signature:
i
- Vibration Reference Values will be determined by the IST Engineer prior to the HPCI Test Mode Surveillance Operation.
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Procedure Number 6.3.3.1 Date $ .12 9'. Revision 23 Page 4 Of 5 Pages
LOOPER NUCLEAR STAT 10N UPERATIONS MANUAL'
' ATTACHMENT "B" SURVEILL^NCE PROCEDURE 6.3 3 1 HPCI TEST MODE SURVEILLANCE OPERATION FUNCTIONAL TEST l
Discrepancies:
Operator /
Date Shif t Supervisor / Permission To Start i
Date Shift Supervisor / Test Complete And Reviewed Date Shift Supervisor / NCR Written If Required Date Work Item (s) Initiated If Required Reviewed By /
Date IST Review / Analysis Of Test Data Comparing To Date Allowable Ranges IST Review / Summary Of Corrective Actions If Date Required IST Review / Subsequent IST And Confirmation Of )
Date Operational Adequacy I
- 1 Prec2 dure Number 6.3.3.1 Date / ! 9i a Revision _j[L, Page 5 Of 5 Pages ,
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COOPER NUCLEAR STATION OPERATIONS MANUAL
- ATTACHMENT "D" SURVEILLANCE PROCEDURE 6.3.3.1 HPCI TEST MODE SURVEILLANCE OPERATION DATA POINTS FOR VIBRATION DATA
- Point #2 (F) Vibration Point Single St' age Pump 2 Stage HPCI Pump
- Point #1 (C) Vibration Point 2 Stage Pump -'
W Single Stage
/ \ / \ HPCI Pump n -
\ / I
/
O O I
- The vibration readings taken at these points must be taken with the vibration meter pickup in the horizontal position. The points will be marked on the west sides of the bearings. '
Proc: dure Number 6.3.3.1 Date d /A- 962 Revision 23 Page 1 Of 1 Pages