ML19209B632

Operating Procedure 1103-6,Revision 15, Reactor Coolant Pump Operation.

ML19209B632
Person / Time
Site:	Three Mile Island
Issue date:	07/12/1979
From:	METROPOLITAN EDISON CO.
To:
References
1103-6, NUDOCS 7910100253
Download: ML19209B632 (42)

Text

.

Revision 15

> ', * ' 07/12/79 THREE MILE ISLAND NUCLEAR STATION 3 gj ng UtlIT lil 0PERATIttG PROCEDURE 1103-6 '

<VitilS REACTOR C00LAf4T PUMP OPERATI0t1 U\ T 1 Table of Effective Pages COUROMD COPY Revision Paoe Date Revision Pace Date Revision Paoe Date 1.0 03/31/78 13 26.0 07/12/79 15 51.0 2.0 09/22/73 0 27.0 07/12/79 15 52.0 3.0 09/22/73 0 28.0 07/12/79 15 53.0 4.0 07/12/79 15 29.0 07/12/79 15 54.0 5.0 07/12/79 15 30.0 07/12/79 15 55.0 6.0 07/12/79 15 31.0 07/12/79 15 56.0 7.0 07/12/79 15 32.0 07/12/79 15 57.0 8.0 07/12/79 15 33.0 07/12/79 15 58.0 9.0 07/12/79 15 34.0 07/12/79 15 59.0 10.0 07/12/79 15 35.0 07/12/79 15 60.0 07/12/79 11.0 07/12/79 15 36.0 15 61.0 12.0 07/12/79 15 37.0 07/12/79 15 62.0 13.0 07/12/79 15 38.0 07/12/79 15 63.0 14.0 07/12/79 15 39.0 07/12/79 15 64.0 15.0 07/12/79 15 40.0 07/12/79 15 65.0 16.0 07/12/79 15 41,0 07/12/79 15 66.0 17.0 07/12/79 15 42.0 67.0 18.0 07/12/79 15 43.0 68.0 19.0 07/12/79 15 44,0 69.0 20.0 07/12/79 15 45.0 70.0 21.0 07/12/79 15 46.0 71.0 22.0 07.612/79 15 47.0 72.0 23.0 07/12/79 15 48.0 73.0 24.0 07/12/79 15 49,o 74,o 25.0 07/12/79 15 50.0 75.0 Unit 2 Staff Recomme s Approval Unit 1 Staff Reco7me s Approval Approval b / i Date Approval Date Cogr/asti(Dipt. H'ead Cogr6zant D6pt.1 lead Unit 1 PORC Recommends Approva1 Unit 2 PORC R ommend ' Approval

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. .i i-Revision 13 5 03/31/78 s

THREE MILE ISLAND NUCLEAR STATION - UNIT 1 Reactor Coolant System Operating Procedure #1103-6 Reactor Coolant Pump Operation Table of Contents

6.1 REFERENCES

6.1.1 System Descriptions 6.1.2 Flow Diagrams 6.1.3 Manufacturer's Inst. Manuals 6.1.4 Applicable Operating Procedures 6.1.5 Figures & Tables 6.2 LIMITATIONS AND PRECAUTIONS 6.2.1 Equipment 6.2.2 Administrative 6.3 OPERATING PROCEDURES 6.3.1 Reactor Coolant Pump Startup 6.3.2 Reactor Coolant Pump Shutdown and Restart at Power 6.3.3 Reactor Coolant Pump Shutdown and Layup APPENDIX A: RCP Motor No Load Test (Uncoupled) 1.0

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'% ts 1103-6 9/22/73 3' '.,.

• i Revision 0 6.1 References 6.1.1 System Descriptions 6.1.1.1 Reactor Coolant System Vol. 1 Sec ion B Chapter 1 6.1.1.2 TMI Unit 1 FSAR Section 4 & 15 6.1.2 Flow Diagrams 6.1.2.1 Reactor Coolant System Process and Instrumentation, B&W - 27617F, GAI-302-650 6.1.2.2 Makeup and Purification System, GAI-302-660 and 661, B&W - 27551F 6.1.2.3 RCP !!otor Process & Inst. B&W - 30702F 6.1.3 Manufacturers Inst. Manuals 6.1.3.1 Reactor Coolant Pump Motors, Allis Chalmers No. 01-0041-00 6.1.3.2 Reactor Coolant Pumps, Westinghouse 6.1.4 Aeolicable Operating Procedures 6.1.4.1 AP 1202-16 R.C. Fump and Motor Emergencies

'6.1.4.2 OP 1101-2 Plant Set Points 6.1.4.3 OP 1102-2 Plant Startup 6.1.4.4 OP 1102-10 Plant Shutdown 6.1.4.5 OP 1102-11 Plant Cooldown 6.1.4.6 OP 1104-2 M.U. System 6.1.4.7 OP 1104-4 Decay Heat Removal System 6.1.4.8 OP 1104-8 I.C. System 6.1.4.9 C 104-11 Nuclear Service Closed Cooling Water 6.1.4.10 JP .103-2 Filling and Venting the R.C. System 6.1.5 Figures and Tables 6.1/5.1 Plant Operation Curves, Figure 1 and 1A 6.1.5.2 RCP Interlocks and Trips, Table 1 6.1.5.3 RCP Alarms, Table 2 2.0 1123 !06

i . . * 1103-6 9/22/73

'. Revision 0 6.2 Limitations and Precautions 6.2.1 Equipment 6.2.1.1 Pump

1. The system pressure that must be maintained for required R.C.P., N.P.S.H., and Scal #1 D/P, shall be within the limits of the enclosed curve. See Fig. 1 & 1A.

2. If bearing temperature is less than 225 F, seal injection water flow must be started prior to starting a reactor coolant pump.

3. Intermediate cooling water to the reactor coolant pumps must be supplied prior to starting the pumps.

4. Seal injection water flow is required to all reactor coolant pumpt when reactor coolant temperature is above 190 F and pressure is above 100 psig, except when operat-ing in the loss of injection mode.

NOTE: If seal injection water is not supplied, keep #1 seal leak of f and #1 seal bypass closed.

NOTE: Upon restoration of seal water flow, the pump bearing temperature should not be changed at a rate greater than 1 F/ min.

5. Operating the reactor coolant pumps in the loss of injection mode with intermediate cooling water operating may result in damage to the pump bearing and/or seals from particles in the reactor coolant.

6. No operations involving breaching of an oil hydraulic system on a RCP motor are to be performed until the RC system has 3.0 112: !07

& Revision 15

., 07/12/79 been cooled to below the flash point of the oil. This includes maintenance, troubleshooting, fill and drain.

NOTE: The flash points of most oils in this service are in the vicinity of 450 F, a suitable margin of safety will exist if the R.C. System is cooled to 400 F.

7. A seal number 1 outlet temperature above 225 F may result in damage to mechanical seals and the pump must be stopped.

8. The reactor coolant pump must be stopped if bearing U

temperature is above 225 F; also see 25 and 26.

9. The #1 seal bypass valve (MUV38) should remain closed unless;

a. R.C.P. radial bearing and/or #1 seal leakoff temperature are approaching their alarm setpoint of 225UF.

NOTE: It should only then be opened if #1 seal leak off flow is < 1 gmp and RCS pressure is >100 psig and <1,000 psig. If 225 F is reached on radial bearing or seal water temperature and RCS pressure >1000 psig stop that R.C. pump.

10. Do not open the number 1 seal bypass unless the number 1 seal leakoff valve is open. Never open the seal bypass valve during a loss of injection water.

11. Do not operate or start an R.C. pump with less than 275 psi delta P across seal number 1. ,

12. Do not start er operate an R.C. pump with less than 0.2 gpm seal leakage (Seal #1 Leakoff Flow).

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8 1100-6 Revision 15 07/12/79

13. Do not exceed 5 gpm number i seal leakoff flow.

14 Minimum inlet pressure to the number 2 seal if 15 psig, corresponding to 27 psig at the number 1 seal leakoff manual pressure control valve. (Indication on upstream side of valve.

15. Minimum level in the standpipe is 24 inches.

NOTE: Low level alarm instrumentation is 36 inches; do not get below 36 inches unless an observer is available locally to monitor standpipe level to 24 inches.

16. Minimum delta P across the thermal barrier is 30 inches for .a running pump and 5 inches for a nonrotating pump.

17. Do not close the number 1 seal leakoff valve during R.C.

pump operation except in case of high number i seal leakoff.

NOTE: Refer to AP 1202-16, R.C. Pump and Motor Emergencies for exceptions.

18. The following limits apply for vibration at the pump shaf t with 4 pump operation (measured near bottom of pump coupling):

(a) At 15 mils (peak-to-peak composite):

Satisfactory, but balancing should be done at first convenient opportunity.

(b) Over 15 mils (peak-to-peak composite):

Balance as soon as possible.

(c) If peak-to-peak composite reaches 20 mils, notify Westinghouse.

5.0

1103-6 Revision 15 07/12/79 (d) If peak-to-peak composite exceed 20 mils with 4-pump operation, or 30 mils with single pump operation, SHUT DOWN and notify Westinghouse for futher information.

19. Do not fill the Reactor Coolant System or pressurize the R.C. pump stuffing box when the pump and motor are uncoupled.

20. With no R.C. pumps operating, do not start a makeup pump with a full open flow path to the R.C. pumps.

NOTE: This precaution is suggested prudent operating practice.

21. Maximum inlet pressure to the number 2 seal is 78 psig.

NOTE: This value corresponds to 90 psig at the number 1 seal leakoff manual pressure control valve.

22. The minimum number 1 seal bypass flow is 1 gpm.

23. If maximum allowable bearing or number 1 seal leakoff temperature limits have been exceed and the pump is returned to service, monitor seal leakage rates, bearing and number 1 seal leakoff temperatures and vibration. If limits of these parameters are exceeded the pump must be shutdown and inspected.

24. Any time an R.C. pump is operated, number 3 seal purge flow should be provided.

NOTE: Purge flow rate should be.approximately 25 GPH.

25. Under conditions where both intermediate cooling and seal injection are lost, and the affected R.C. pump (s) continue to operate, the following apply:

(a) If possible, reestablish seal injection within 1 minute. If this accomplished, it is not necessary G.0 112: !10

.< 1103-6

., Revision 15 07/12/79 to isolate number 1 seal leakoff or establish cooling water immediately.

(b) If both seal and cooling water systems are inoperative for longer than 1 minute, close the isolation valve inseal number 1 leakoff line. Number 2 and number 3 seal leakoff remain open. The pump can be maintained in this condition for possibly up to 10 minutes.

Monitor number 2 seal flow and temperature. If the

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seal leakage flow becomes high or the number 2 seal inlet temperature exceeds 225 F, stop the pump.

(c) If condition 25.(b) occurs, establish cooling services as follows:

1. Restore intermediate cooling water flow to thermal barrier at an inlet temperature of 1050 F or less.

2. Open number i seal leakoff and monitor flow and outlet temperature.

3. When seal leakoff water temperature decreases to below 225 F, verify adequate seal return flow exists and start R.C. pump.

4. Reestablish injection water flow.

NOTE:

If not possible to establish intermediate cooling as in 25.(c).1 above, very slowly (less than 1 F/ min) establish injection flow. Open number 1 seal leakoff-and proceed with 25.(c).3.

26. For hot restart of the R.C. pump when the R.C. System is above 225 F, the following sequence is used:

7.02] 1}}

1103-6 . . .' Revision 15 3 07/12/79 (a) Restore the thermal barrier heat exchanger cooling water inlet temperature to 1105 F. (b) Wait until the seal leak-off water temperature and the bearing temperature have decreased io 1220 F. (c) Insure that adequate flow (0.2 GPM) exists across the seals, then start pump motor. (d) Reestablish seal injection flow gradually to limit bearing temperature reduction rate to 1I U F per minute.

6. 2.1. 2 R.C.P. Motor

1. Maximum allowable voltage variation is i 10%.

2. Maximum allowable frequency variation is 15%.

3. Maximum allowable voltage frequency variation is the sum of i 10%.

4. Maximum time for locked rotor without damage at 100%

voltage is 11.5 sec. NOTE: Time to full speed from zero speed - 100% voltage with no reverse R.C. flow is 8 seconds. NOTE: Time to full speed from zero speed - 100% voltage v.ith reverse R.C. flow (3 pumps operating and starting fourth pump) is 9 seconds.

5. Pump motor start limits are 3 starts from ambient temperature, allowing the motor to coast to rest between starts, or 2 starts if motor is at operating temperature. Thereafter 20 minutes running or 40 minutes with motor stopped must elapse before an additional start may be attempted.

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  .,<                                                                  Revision 15 t-                                                                      07/12/79

6. Minimum speed without high pressure oil lift pumps operating is 300 rpm.

7. Maximum allowable thrust bearing temperature is 200 F (this is a shutdown point).

8. Maximum allowable stator temperature 150 C, 302 F.

9. Maximum allowable time without cooling water is 10 minutes including coastdown time.

10. Minimum allowable voltage at motor terminals during starting is 80%.

11. The backstop and oil lift pumps must be started prior to or at 500 rpm when the RC pump motor is de-energized.

12. Approximate motor current for the four pump cold R.C.

temperature (test) condition is 731 amps at normal power factor and 790 amps at a possible reduced power factor which may occur for several minutes following the start of the pump .

13. Approximate motor current for the single pump cold R.C.

temperature condition is 640 amps at normal power factor and 700 amps at a possible reduced power factor which may occur for several minutes following the start of the pump.

14. Do not exceed a R.C. P. motor vibration of 2 mils.

                  ?!0TE:     Vibration is measured at the pump vibra-switch.

6.2.2 Administrative

1. Never start two R.C.P.'s simultaneously. Start the second pump af ter the starting current from the first pump returns to normal running current.

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1103-4 Revision 15 07/12/79

2. If available, loose parts monitor should be energized and volume turned up prior to starting a RCP.

3. Emergency Electrical System lined up per OP-1107-2 prior to starting R.C.P.'s.

4. R.C.P.'s must be tripped if:

(a) Motor bearing temps, exceed the following: U Upper & Lower Guide 185 F U Up & Down Thrust 195 F (b) Motor winding temp. exceeds 302 F. (c) Pump bearing temp. exceeds 225 F. (d) Pump Seal #1 leakoff temp. exceeds 225 F. (e) Motor stand vibration exceeds .002". (f) Air cooler leak detection alarm. (g) Shaf t vibration on Bently Nevada System exceeds 20 mils 4 pump operation or 30 mils single pump operation.

5. Maintain seal #2 differential pressure > 15 psig.

NOTE: This corresponds to a reading of > 27 psig on PI-39.

6. Verify the individual pump seal injection flow control manual needle valves have been set for equal flows, about 8 gpm to each pump.

7. Do not run Lift Oil System longer than necessary to prevent carbonizing oil.

6.3 Operating Procedures 6.3.1 R.C.P. Startup 6.3.1.1 Prerequisites Indicate satisfactory completion of steps below by initialing each step and sign name at end of applicable section. 10.0 ))}} 1}4

1103-6

     '.<                                                               Revision 15 07/12/79

1. The Nuclear Services Closed Cycle Cooling Water System lined up for normal operation per OP 1104-11. Verify the following valves open:

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1103-6 Revision 15 07/12/79 RCP-1A Motor Cooler Valves NS-V6A Cooler Inlet NS-V33A Upper Brg. Cooler #1 Outlet NS-V33B Upper Brg. Cooler #2 Outlet NS-V34A Motor Air Cooler NS-V91A Lower Brg. Oil Cooler RCP-1B Motor Cooler Valves NS-V6B Cooler Inlet NS-V33C Upper Brg. Cooler #1 Outlet NS-V33D Upper Brg. Cooler #2 Outlet NS-V34B Motor Air Cooler NS-V91B Lower Brg. Oil Cooler RCP-lC Motor Cooler Valves NS-V6C Cooler Inlet

         /

NS-V33E Upper Brg. Cooler #1 Outlet NS-V33F Upper Brg. Cooler #2 Outlet NS-V34C Motor Air Cooler NS-V91C Lower Brg. Oil Cooler RCP-lD Motor Cooler Valves NS-V6D Cooler Inlet NS-V33G Upper Brg. Cooler #1 Outlet NS-V33H Upper Brg. Cooler #2 Outlet NS-V34D Motor Air Cooler NS-V91D Lower Brg. Oil Cooler 12.0

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      ',., 1103-6

'!,; - ;cvision 15 07/12/79

2. The Intermediate Cooling System lined up for normal operation per OP 1104-8. Verify the following valves open:

RCP-1A Thermal Barrier Heat Exchanger Valves IC-V77A Inlet Valve IC-V79A Outlet Valve RCP-1B Thermal Barrier Heat Exchanger Valves IC-V77B Inlet Valve IC-V79B Outlet Valve ECP-1C Thermal Barrier Heat Exchanger Valves IC-V77C Inlet Valve IC-V79C Outlet Valve RCP-1D Thermal Barrier Heat Exchanger Valves IC-V77D Inlet Valve IC-V79D Outlet Valve

3. The Normal and Emergency Electrical System lined up for normal operation per OP 1107-1 and 1107-2 respectively.

4. 125 VDC available at the switchgear for breaker control.

5. Place the control switches for the RCP's, H.P. lift pumps, and backstop oil pumps in PULL-TO-LOCK and position ekt, breakers as follows:

RCP's lA & C bkrs. racked in on 6900 V A.C. bus lA. RCP's 1B & D bkrs. racked in on 6900 V A.C. bus 1B. Insure 69 switches for RCP bkrs. are 'in normal position. 13.0 1123 !17

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 ;' ,     s. 1103-6
 ,'.    '                                                               Revision 15 07/12/79 Backstop oil pump bkrs. racked in and closed on following MCC:

R.P. MCC 1A RCP-3A-1, 3B-1, 3C-1 and 3D-1 R.P. MC - IB RCP-3A-2, 3B-2, 3C-2 and 3D-2 H.P. oil lift pump bkrs. racked in and closed on following MCC: E.S. MCC 1A RCP-2A-1 and RCP-2C-1 E.S. MCC 1B RCP-2B-1 and RCP-2D-1 D.C. Dist. Pnl. 1C RCP-2A-2 and RCP-2C-2 D.C. Dist. Pnl. 1D RCP-2B-2 and RCP-2D-2

             ,        6. Power available to all associcted RCP controls and instrumenta-tion.

7. RCS pressure being maintained above minimum RCP NPSH and #1 seal DP as ind. on RC-3A (0-500 psig). See Fig. 1 & 1A.

8. Establish demin. water purge flow to #3 seal chambers. Open the following:

CA-V257 A/D and CA-V258 .id adjust flow rate for 2 to 4 GPM per pump as indicated on FI-288 A/D. NOTE: Demin. water flow will prevent boron crystal buildup during eperation. Monitor reclaimed water storage tank level periodically. 14.0 13m, l4J j3n 10

1103-6 e Revision 15 07/12/79

9. M.U. pump running on min, flow recirc. mode.

10. Place all RCP radial bearing temperature and #1 seal leak off temperatures on a 5 minute trend. (Computer points 0525-0;28 #1 0521-0524 rad brg temp). Seal out.

CAUTION: If any of the temperatures are approaching their alarm setpoints and #1 seal leak off flow on any RCP

                              .is <lgpm with RCS pressure >100 psig but <1,000 psig then open MU-V38. If greater than 1000 psig in the R.C.S. stop the pump.

6.3.1.2 Procedure. This section of the procedure will cover the steps necessary to start the RCP's when the plant is in a low pressure cold condition. Three RCP's will be started when NPSH requirements have been met and will be used to heat the plant up to 500 UF where the fourth RCP will be started and the heatup completed.

1. Verify that seal injection flow has been established to each R.C.P. as ind on MU-PI-42 total injection flow and local indication MU-FI-8 A/D. Refer to OP 11042.

2. Verify reading on DPI-18, labyrinth seal D/P, is > 5" H2 0.

NOTE: A pressure drop of 5" H 2 O is required prior to starting pump. Upon starting the D/P should increase to 4050 inches H2 O which corresponds to the desired seal in leakage flow of 5 GPM.

3. Fill standpipes by opening and closing MU-V39 as needed.

Verify hi alarm cleared. 5.0

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1103-5 Revision 15 07/12/79

4. Verify seal #2 differential pressure is > 27 psi and <90 psi on MU-PI-39.

NOTE: Adjust the D/P toward the low end since D/P will increase as R.C.S. pressure increases and will require readjustment of MU-V187.

5. Verify seal #1 D/P > 280 psi on DPIl3 for each pump, and seal #1 leakoff flow is >0.2 GPM, on FR-43.

6. About four (4) minutes prior to starting a Reactor Coolant Pump, start one backstop oil pump. About two minutes later start one lift oil pump. (Starting the backstop oil pump first allows the air in the oil lines to bleed out properly).

7. Assure that RCP and motor alarms are cleared and no condition exists that would be injurious to pump and motor operation.

8. Verify RCS pressure within limits of Fig.1 & 1A.

9. Start the desired reactor coolant pump from console CC.

If for any reason, the RCP does not start, or trips off during a start attempt, do not attempt to restart the pump until the cause is determined and corrected.

10. Secure lif t, and backstop oil pumps one minute after pump reaches full speed.

11. Carefully observe all parameters associated with the pump and motor performance to verify proper operat7on.

a. If DH pump is running secure OP 11044 prior to starting second RCP.

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Revision 15 07/12/79

12. As plant conditions permit increase RCS pressure to upper ends of limits of Fig.1 & 1 A.

13. Line up seal return to M.U. tank per OP 11042.

14. Repeat steps 8 through 14 to start a second R.C.P. in the loop opposite to first pump.

a. Prior to starting 3rd RCP withdraw rod groups 14 per OP-11059.

15. Repeat steps 8 through 14 to start a third R.C.P.

NOTE: Expected heat up rate of 30 F per hour with 3 R.C.P's operatin'g.

16. When R.C.S. temperature exceeds 500 F (fourth pump starting interlock) start fourth RCP per steps 7 through 12.

6.3.2 RCP Shutdown and Restart at Power

6. 3. 2.1 Prereouisites Indicate satisfactory completion of s+.eps below by initialing each step and sign name at end of applicable section.

1. Four RCP's operating, plant startup complete and operating in the power range.

6.3.2.2 Procedure If a RCP must be shutdown during power operation, power should be lowered to the appropriate reduced power levels allowed by the safety system setpoints for the resulting combination of running RCP's, before stopping the pump. Before restarting a pump during plant operation, the reason for its initial trip or shutdown should be known and its cause corrected, all interlocks and safety alarms must se satisfied. The pump may 112 !21

4. A

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1103-5

.          .*                                                                            Revision 15 07/12/79 not be restarted until the reactor power has been reduced to <

30% of full power.

1. RCP shutdown @ power.

(a) Reduce power within RPS limits. (b) Start a lift pump and backstop oil pump for associated RCP. (c) Trip RCP. (d) When pump has stopped rotating and anti-reverse

                                      , rotation has been verified, oil lift and backstop pumps may be tripped off.

(e) Maintain seal injection flow and thermal barrier cooling flow. (f) If pump is to be off for greater then one hour, isolate NSCCW to the motor within one hour after securing the pump hang a caution tag on the RCP control switch. - NOTE: On emergency trip refer to AP 1202-16.

2. RCP restart @ power.

(a) Initial cause of trip corrected. (b) Reduce reactor power to < 30% of full power. (c) About four (4) minutes prior to starting a Reactor Coolant Pump, start one backstop oil pump. About two (2) minutes later start one lift oil pump. (Starting the backstop oil pump first allows the air in the oil lines to bleed out properly). (d) Verify all alarms cleared and all interlocks satisfied for associated pump.

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       ..                                                                   Revision 15 07/12/79 (e) Start RCP, insure starting current drops to normal and pump is up to speed in 9 seconds, as determined by flow and motor amps.

(f) After verifying pump is operating normally, return plant to desired power level. U

3. Hot Restart of RCP's (RCS < 225 F) after loss of both I.C. and Seal Injection.

NOTE: This condition is highly improbable since it requires a blackout and failure of both diesels. (a) Restore I.C. flow af ter insuring I.C. temp. is < 105 F. to RCP thermal barrir.cs and monitor out-let temps. on computer points 0490-0493. (b) Open #1 seal leakoff isolation valve MU-V26, and monitor #1 seal leakoff water and pump radial bearing temps, on computer points 0521-24 and 0529-32.

                    , (c) Bypass the seal injection flow interlock in RCP's start ckt. by reducing set point monitor low pot to zero.

NOTE: The set point monitor is located in NNI cabinet 0, row 10, module 5. (d) Verify seal water and bearing temps. are <225 F, and seal flow is > 0.? gpm. (e) Start one RCP in each loop. - (f) Using MU-V32 slowly establish seal injection to all RCP's. Limit bearing temps. cooldown rate to <1 0 F/ min. as ind. on computer points 0529-32. 19.0 1123 '23

• 1103-6

   -                                                                                           Revision 15 07/12/79 (g)     Increase seal injection flow to normal (32 gpm) using MU-V32 and place control in AUTO.

(h) Return seal injection flow setpoint monitor to normal setpoint. (k) Restarc remaining two RCP's as plant conditions require. 6.3.3 RCP Shutdown and Layup 6.3.3.1 Prereouisites Indicate satisfactory completion of steps below by initialing each step and sign name at end of applicable section.

1. RCP's operating, RCS in a shutdown condition.

6.3.3.2 hocedure This section of the procedure will cover the steps necessary to secure the RCP's during a plant shutdown and cooldown.

1. Trip one RCP in each loop per section 6.3.2.2 steps 1 b-e.

2. During plant cooldown adjust MU-V187 as necessary to maintain 27 psig on inlet to #2 seal as ind. on MU-PI-39.

CAUTION: Monitor #1 seal leak off temperature and radial bearing temperatures. If they approach 225 F and #1 seal leak off flow on any RCP is

                                                  <1 gpm with RCS pressure >100 psig but
                                                  <1,000 psig open MU-V38.

3. When RCS Pressure reaches 380 psi line up seal return to Aux. Building sump, open MU-Vl92 and close MU-Vl90.

CAL' TION: Seal #1 AP must be maintained < 275 psi. 20.0 l i c.: 124

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1103-6 sa Revision 15 07/12/79

4. Ensure NPSH limits are maintained per Fig.1 & 1 A for operating pumps during low RCS pressure condition.

5. As plant conditions permit trip the two operating RCP's per section 6.3.2.2 steps 1.b thru f.

6. After all RC pumps have been stopped and the RCS pressure is < 100 psig and temp. < 190 F., secure seal injection to RCP's close MU-V25 seal #1 leakoff stop valve and MU-V20 seal injection stop valve.

7. Return seal #1 leakoff flow path to normal, open MU-Vl90 and close MU-Vl92.

8. Hand rotate RCP's once a week if radiation levels permit as follows:

(a) Start backstop oil pump, then two (2) minutes later start lif t pump. (This allows air in the oil lines to bleed out properly). (b) Hand rotate RCP. (c) Operate oil pumps for 5 minutes. (d) Secure oil pumps. Perfcrmed By Date Reviewed By SR0 or R0 License Date 21.0 1123 !25 m* Whm- 6m N ewee N w e em _ eea - he-

.i a_ fir'4RE I Revision 15 00

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A 75r' 89  ::  ! l Caution: Oncration bela systen 00 pressure of 454 nsin requires

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                   ' D                         275                       ,           460                                     g                                                         ' .. the-use-o f; the-J ew-rance ,
         -F.               g                   320'-                  "'

l-2250 '! L.  ;! i nressqre:_i ns trur:ent.'

        ' Qnstrynent Error. 50 nsic (_-25 assur ,ed ; i ~                                                                                                    ri.:

I  ! r: I .! I h  : .l' =--- 00 tin Tech Spec -25 for ; installed; i-  :.I' ' . t: .l;i  :.j i

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       . ri iOP 1101-11 Fio.1.6 - 10.1                                                                          :

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0 100 200 300 40E- 500 600 22 0 l l'"".7 , 7 h2bF l Indicatt.d RC Tencerature OF

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                                                        -t.                     :i          ' Instrument. Error:                                       25 psig /.~l                                                    .:I :            1-               :.-          .-          .! .

T.S.' Fig. 3~.T,F r - .- . .j: 220 LE_ _

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a i. .

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160r i c $ iij O .F.~ u;.. a 1: .:i:t.- $

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Mo

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7 100 F '.. p. - g _) g t.,-22 2: I ._.i: f F ' ' .-- I- @. (ld u  : y F . .:p : .a - d -! 4 4 $,, Lb_jj..:Fiu S e.

                                                                                                             .                                                                                                                     . : j a - 4.                                   p pi.:

80 l: L if.:5. __.flinir.un RC :Punn !I'PS!!, Instrunent Error j / .10 psig il20E . : l .., .

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60-1-

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y- 4 Du,at-u n-and 40013 own J.a tes-shal4-not-exceed-V-92"F

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40

Ra'tns_sha11

• nol-_c cen! 050 F in 0DLons_htur_. i ' r! - 1 ~l'  !- .

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20!

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4 gu. 1.. _ p q_ - - g

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                                                                                                                     .: r , q..? ' l : . t: a. ;                                           '. . . ..

a v or:: p. - .  :.m [. g'.:. 70 90 110 130 150 170 190 210 230 25! 270 299 010 339 350 370 390 410 430 CF Indicated "f. Tenn. OF 23.0 1 1 n_7 . Yl3 (o.Jy .(l

. ), ..

• ] ..'.'.... 1103-6

    .       '                                                                        Revision *15 07/12/79 TABLE 1 REACTOR COOLANT PUMP AND MOTOR INTERLOCKS, TRIPS AND ALADIS Item                                                                     Setpoint Starting Interlock No. 1                                                    5030F RCS Temperature Temperature Switch Starting Interlock'No. 2

1. Reactor Power Less than 30:

2. Mtr. Backstop Oil System Flow > 0.4 GPM

3. Mtr. Oil Lift System Pressure Greater than 1750 PSIG

4. Mtr. Upper Bearing oil Level 9 in.

5. Mtr. Lower Bearing Oil Level 6.5 in. t

6. Mtr. Heat Exchanger Cooling Water Flow N.S. Pumps Bkr. Contacts

7. Pump Seal Injection Water Flow 22 GPM

8. Pump Thermal Barrier Cooling Water Flow 550 GPM (Total Int. Cooling Water System Flow)

9. Mtr. Starting Under Voltage 6.62 KV

10. Pump Seal No. 1 Delta Pressure 280 PSI Interlock Permissive to Stop Oil Lift Pump When Starting RC Pump 500 RPM Trips

1. Runni'ng Under Voltage (Time Delay) 6.15 KV @ 5.18 sec.

2. Instantaneous Overcurrent (Short Circuit) 7478 amps

3. C2rrent Differential 5 amps

4. RC Pump Trips if Both IC Flow and Seal Injection Flow Low.

5. Low Instantaneous Trip 1273 amps 24.0 07, cs 170

                                                                                                         .LU

r.. .' */ 1103-6 Revision ~15 07/12/79 Table 2 Item Setpoint Alarms

1. AC 011 Lift Pump Disch. Press. Low 1750 psig

2. DC 011 Lift Pump Disch. Press. Lew 1750 psig

3. Backstop Low 011 Flow < 0.24 CPM

4. Lube Oil Low Flow 7.0 GPM

5. Mtr. Upper Bearing High 011 Level 13 in.

6. Mtr. Upper Bearing Low 011 Level 9 in.

7. Mtr. Lower Bearing High 011 Level 10.5 in.

8. Mtr. Lower Bearing Low 011 Level 6.5 in.

9. Air Caoler Leak Jetectcr Hi Level Cooler Leakage

10. High Vibration (Motor Frame) 0.002 in.

11. Pump Full Speed Low 700 RPM

12. High Inlet Air Temp. to Motor 1220 F

13. Down Thrust Searing Temp. High 1950 F

14. Up Thrust Barring Temp. High 195 y

15. Upper Guide Bearing Temp. High 1850 F

16. Lower Gu~de Bearing Temp. High 185 F

17. Pump Tripped N/A

18. High Stator Winding Temp. 302 F

19. RCP Labyrinth Seal Diff. Press. Low 30 in. H 2O s20. RC Purp Seal Injection Flew Lou 22 GPM

21. RC Pump Seal Injection F:ow High 42 GPM

22. RCP Seal No. 1 Outlet ';ater Temp. High 2000 y

23. RCP Seal No. 1 Leak Off High Flow 5 GPM

24. RCP Seal No. 1 Icak Off Low Flow 0.86 GPM

25. RCP Seal No. 1 Bypass Low Flow 0.8 GPM

26. RCP Seal No. 1 Differential Press. Low 280 psig

27. RCP Bearing Water Temp. High 1900 F

28. RCP Stand Pipe Level High 60 in.

29. RCP Stand Pipe Level Low 36 in.

30. Groun3 Fault 200 V @ 8 sec.

31. Instantaneous Overcurrent (Short Circuit) 7478 amps

32. Running Undervoltage 6.15 KV @ 5.18 sec.

33. Time Delay Overcurrent (Overload) 800A @ 10 sec.

34. RCP Thermal Earrier Cooling Water Outlet Temperature High 1400 F 25.0 112s '29

Revision 15 '

  .;                                                                              07/12/79 APPENDIX A RCP Motor No Load Testing (Uncoupled)

A.1 PURPOSE: A.l.1 Provide guidance for running the RC Pump Motors Uncoupled for testing. NOTE: See Section 6.1 of this procedure. A.2 LIMITATIONS AND PRECAUTIONS A.2.1 Nuclear Safety - NA A.2.2 Environmental Safety - NA A.2.3 Personnel Safety - Insure that all extraneous ts als and equipment have been completely cleared from inside the pump motor stand area, the motor shaft is free to rotate unobstructed, and that the personnel screens are in place. . NOTE: The screens should be removable during the test to facilitate shaft IRD readings. A.2.4 Equipment Protection - Comply with applicable Limits and Precautions of Section 6.2 of this procedure. 26.0 1123 . 0

1103-6

   .,                                                                                                  Revision 15
            .                                                                                          07/12/79 A.3 PREREQUISITES NOTE:        Indicate satisfactory completion of Sections A.3 and A.4 by initialing the appropriate checklist attached to this procedure.

A.3.1 Verify the motor has been completely reassembled:

a. Lower Bearing Housing

b. Upper Bearing Housing NOTE: Verify alignment shims were removed?

c. All oil levels are correct.

d. Access covers are in ' place.

e. All electrical connections and lube pump motors properly installed.

f. All cooling water lines are reinstalled

g. All lube oil piping is installed a h. All instrumentation is operational.

A.3.2 Perform the following on each motor to~be tested only to allow starting of the RC Motor with no load. Enter all jumpers ijl jumoer loa. RCP-1A RCP-1B RCP-lC RCP-lD

a. Intermediate Cooling Water Interlock 209-070; Pull Fuse FD15-XCC FD15-XCC FD15-XCC FD15-XCC

                                 .b. Makeup Flow Interlock               0-3-3-5  0-3-3-7    0-3-3-9    0-3-3-11 209-066; In ICS/NNI                 0-3-3-6  0-3-3-8    0-3-3-10 0-3-3-12 jumper

c. Seal Injection Flow Inter-lock 209-065; Pull Fuse FD91-XCC FD219-XCL FD91-XCC FD219-XCL 27.0 97 es 171

                                                                                                            .Ji

        ..,                                                                           Revision 15 07/12/79 A.3.3      Perform the applicable portions of the following steps of Section 6.3.1. of this procedure.

a. Step 6.3.1.1. Nuclear Services Closed Cooling Water

b. Step 6.3.1.3. Electrical System lineup

c. Step 6.3.1.4. 125VDC for Switchgear.

d. Step 6.3.1.5. Control Switches for all motors

e. Step 6.3.1.6. Instrumentation and Controls.

A.3.4 Insure motors are not red tagged. If blue tagged insure compliance with AP1002. A. 4 PROCEDURE A.4.1 Call up the following computer points for the motor to be tested. Data should be taken every two minutes for the first twenty minutes and then every ten minutes thereafter. RCPlA RCPlB RCPlc RCPlD

a. Upper Guide Bearing Group Group Group Group

b. Upthruct Bearing 110 111 112 113

c. Downthrust Bearing

d. Lower Guide Bearing

e. Stator A.4.2 Verify 6900V Bus energized A.4.3 Place all oil pumps in pull to lock with breake"s closed.

A.4.4 Station observer at motor with communication. A.4.5 Start one backstop pump and remove the other from pull-to-lock. I A.4.6 Start the DC Lube Oil pump to assure that it operates. Let it run for two minutes. Verify lube oil pressure is >l800 psig. Shut off the DC Lube Oil Motor. 28.0 l}2] !32

  ,.                                                                                                       07/12/79 A.4.7          Start the AC Lube Oil Pump and verify lube oil pressure is
                                >l800 psig.

A.4.8 Verify the DC Lube Oil Pump is in standby. A.4.9 Start the RC Pump Motor. If for any reason, the RCP does not start or trips off during a start attempt, do not attempt to restart the pump until the cause is determined and corrected. A.4.10 When the motor reaches full speed, shut down the lift and backstop pumps. (Approx. 1 minute after start.) A.4.ll Take data from the computer as directed in step A.4.1. Attach completed printout to the checkoff list. A.4.12 Record vibration readings per PME53 on checklist. Record motor voltage / amperes on checklist. NOTE: Use IRD hand held system as required. A.4.13 Allow the motor to run for one hour or until bearing temperatures stabilize whichever comes first. A.4.14 Start one Backstop Lube Oil Pump. A.4.;5 Start one Lube Oil Pump. CAUTION: Uncoupled motor takes longer to coastdown. Lift pumps must be operational during entire coastdown. A.4.16 Stop RC Pump Motor A.4.17 Time the coastdown. A.4.18 Shut off the lube oil motors when motor has stopped. A.4.19 Remove the jumpers / replace the fuses from step A.3.2. Record in the jumper log. 29.0 97 j .. . . , . . . . . ... ~.....-.r....

                                                                                     . .. . % c. . ,, . % u.;o %. ;,, . . ~. ,x.. . ..

         -                                                            Revision 15 07/12/79 Appendix A - No Load Motor Testina RC-P-1A Checklist (Initial each step as it is completed)

A.3.1 A.4.1.

a. A.4.2. Bus lA2 energized

b. A.4.3.

c. lARP MCC RCP-3A-1 Closed

d. IBRP MCC RCP-3A-2 Closed

e. 1 ES MCC RCP-2A-1 Closed

f. 1 DC Panel RCP-2A-2 Closed 9 A.4.4.

A.4.5.

h. RCP-3A-1 Red Light A.3.2 RCP-3A-2 Green Light

a. A.4.6.

b. DC Pump operates

c. Oil Pressure >1800 psig A.3.3 DC Pump off

a. A.4.7.

b. AC Pump operates

c. Oil Pressure >l800 psig

d. A.4.8.

e. DC Pump in Standby A.3.4 A.4.9.

Start RC Pump Motor A.4.10. Backstop pumps turned off 112 !34 A "

Revision 15 i s.

             '                                                                           07/12/79 Appendix A - No Load Motor Testing RC-P-1A Checklist (Initial each step as it is completed)

A.3.1 A.4.1.

a. A.4.2. Bus lA2 energized

b. A.4.3.

c. lARP MCC RCP-3A-1 Closed

d. 1BRP MCC RCP-3A-2 Closed

e. 1 ES MCC RCP-2A-1 Closed f.

1 DC Panel RCP-2A-2 Closed

g. A.4.4.

A.4.5.

h. RCP-3A-1 Red Light A.3.2 RCP-3A-2 Green Light

a. A.4.6.

b. DC Pump operates

c. Oil Pressure >l800 psig A.3.3 DC Pump off

a. A.4.7.

b. AC Pump operates

c. Oil Pressure >l800 psig

d. A.4.8.

e. _

DC Pump in Standby A.3.4 A.4.9. Start RC Pump Motor A.4.10. Backstop pumps turned off 3-1123 135

     . . . ~     . . .    .

a~  : .=.. ..

                                                                         . - - = .
                                                                                             . .: . . = ;:

Revision 15 07/12/79 RC-P-1 A Checklist (cont'd) A.4.18. Shutoff the lube oil motors. A.4.19. Remove jumpers / replace fuses (Checklist step A.3.2.) 1123 136

    . *.                                                              Revision 15 07/12/79 Appendix A - No Load Motor Testing RC-P-1B Checklist (Initial each step as it is completed)

A.3.1 A.4.1.

a. A.4.2. Bus 1B2 energized

b. A.4.3.

c. lARP MCC RCP-3B-1 Closed

d. 1BRP MCC RCP-3B-2 Closed

e. 1 ES MCC RCP-2B-1 Closed

f. 1 DC Panel RCP-28-2 Closed

g. A.4.4.

A.4.5.

h. RCP-3B-1 Red Light A.3.2 RCP-3B-2 Green Light

a. A.4.6.

                   .b.            DC Pump operates

c. Oil Pressure >l800 psig.

A.3.3 DC Pump off

a. A.4.7.

b. AC Pump operates

c. Oil Pressure >l800 psig.

d. A.4.8.

e. DC Pump in standby A.3.4 A.4.9.

Start RC Pump Motor A.4.10. Backstop pumps turned off 33.0

                     '                                                            I 1123 137

    '+. .                                                                   Revision     15 07/12/79 RC-P-1B Checklist (cont'd)

A.4.ll Computer data attached (Attach when test is complete). A.4.12 At one minute record: Frame vibration X mils Y mils Shaft vibration X mils Y mils At ten minutes record: Frame vibration X mils Y mils Shaft vibration X mils Y mils At five minutes record: Motor voltage volts Motor amperes amps A.4.13 Motor run time is >l Hr. or temperatures have stabilized A.4.14 Start a backstop lube oil pump. A.4.15 Start one Lube Oil Pump. A.4.16 Stop the RC Pump Motor. A.4.17 Record coastdown time min. sec. 34.0 h

Revision 15

 ',..                                                                  07/12/79 RC-P-1B Checklist (cont'd)

A.4.18 Shutoff the lube oil motors. A.4.19 Remove jumpers / replace fuses. (Checklist step A.3.2.) J 35.0 1123 '39

is

  .4-89y{1)93 Aprendix A - tio Load Motor Testing RC-P-lC Checklist (Initial each step as it is completed)

A.3.1 A.4.1.

a. A.4.2. Bus lA3 energized

b. A.4.3.

c. lARP MCC RCP-3C-1 Closed

d. 1BRP MCC RCP-3C-2 Closed

e. 1 ES MCC RCP-2C-1 Closed

f. 1 DC Panel RCP-2C-2 Closed

g. A.4.4.

A.4.5.

h. RCP-3C-1 Red Light A.3.2 RCP-3C-2 Green Light

a. A.4.6.

b. DC Pump operates

c. Oil Pressure >l800 psig A.3.3 DC Pump off

a. A.4.7. ,

b. AC Pump operates

c. Oil Pressure >l800 psig.

d. A.4.8.

i

e. DC Pump in Standby A.3.4 A.4.9.

Start RC Pump Motor A.4.10. ' Backstop pumps turned off 36.0 1123 !40

       ** '                                                                                            07/12/79
 .. ;       !( * * '

RC-P-1C Checklist (cont'd) A.4.11 Computer data attached (Attach when test is complete). A.4.12 At one minute record: Frame vibration X mils Y mils Shaft vibration X mils Y mils At ten minutes record: Frame vibration X mils Y mils Shaft vibration X mils Y mils At five minutes record: Motor voltage volts Motor amperes amps A.4.13 Motor run time is >l hr. or temperatures have stabilized i A.4.14 Start a backstop lube oil pump A.4.1S __ Start one Lube Oil Pump A.4.16 Stop the RC Pump Motor A.4.17 Record coastdown time min. sec. 37.0 1123 !41 M 6 'W%W +w

• h4 . , , . ,

                                             .,,,.f', ,,e.j .g   ,,Ae' g       g y  ,g       p
                                                                                ,,a       .
                                                                                            ,  g gj ,,      ,   , ,g

Revision 15 RC-P-lC Checklist (Initial each step as it is completed) A.4.18 Shutoff the lube oil motors. A.4.19 Remove jumpers / replace fuses (Checklist step A.3.2.) t d 38.0 1123 '.42

Revision 15

            -                                                              07/12/79 Appendix A - No Load Motor Testing RC-P-lD Checklist (Initial each step as it is completed)

A.3.1 A.4.1.

a. A.4.2. Bus 1B3 energized

b. A.4.3.

c. lARP MCC RCP-3D-1 Closed

d. IBRP MCC RCP-3D-2 Closed

e. 1 ES MCC RCP-3D-1 Closed

f. 1 DC Panel RCP-3D-2 Closed

g. A.4.4.

A.4.5.

h. RCP-3D-1 Red Light A.3.2 RCP-3D-2 Green Light

a. A.4.6.

b. DC Pump operates e c. Oil Pressure >1800 psig A.3.3 Dt, Pump off

a. A.4.7.

b. AC Pump operates

c. Oil Pressure >l800 psig.

d. A.4.8. l

e. DC Pump in Standby A.3.4 A.4.9.

Start RC Pump Motor A.4.10. Backstop pumps turned off 39.0

                             ..                                            1123 !43

1103-6

' ,. . '4 - v    .                                                                    Revision .15
  -          -                                                                        07/12/79 RC-P-lD Checklist (cont'd)

A.4.11 Com r uter data attached (Attach when test is complete). A.4.12 At one minute record: Frame vibration X mils Y mils Shaft vibration X mils Y mils at ten minutes record: Frame vibration X mils Y mils Shaft vibration X mils Y mils At five minutes record: Motor voltage volts Motor amperes amps A.4.13 Motor run time is >l hr. or temperatures have stabilized. A.4.14 Start a backstop lube oil pump A.4.15 Start one tube Oil Pump A.4.16  ; Stop the RC pump motor A.4.17 P.ecord coastdown time min. sec. 40.0 1 1123 '44

                 ,                                                       1103-6
               '                                                         Revision 15
 .. l '.~.)* '.
           ,                                                             07/12/79 RC-P-10 Checklist (cont'd)

A.4.18 Shutt'f the lube oil motors A.4.19 Remove jumpers / replace fuses (CheckliststepA.3.2.) 4 8 4 41.0 1123 '45

                                                              -. _ .}}