ML19224B225

Operating Procedure 2103-01.4,Revision 6:reactor Coolant Pump Operation

ML19224B225
Person / Time
Site:	Crane
Issue date:	08/16/1978
From:	Metropolitan Edison Co
To:	Mullinix W NRC/IE
References
2103-1.4, TM-0017, TM-17, NUDOCS 7906140254
Download: ML19224B225 (22)

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METROPOLITAN EDISON COMPANY.

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THREE MILE ISLAND NUCLEAR STATION UNIT # 2 OPEPATING PROCEDURE 2103-1.c REACTOR COOLANT PUMP OPERATION Table of Effective Pages Page Date Revision Pace Date Revision Pace Date R evision 1.0 05/12/77 0

26.0 51.0 2.0 05/12/77 0

27.0 52.0 3.0 04/18/78 4

28.0 53.0 4.0 04/18/78 4

29.0 54.0 5.0 08/16/7a 6

30.0 55.0 6.0 10/13/77 2

31.0 56.0 7.0 10/13/77 2

32.0 57.0 8.0 06/28/78 5

33.0 58.0 9.0 06/28/78 5

34.0 59.0 10.0 04/18/78 4

35.0 60.0 11.0 05/12/77 0

36.0 61.0 12.0 05/12/77 0

37.0 62.0 13.0 04/18/78 4

38.0 63.0 14.0 04/18/78 4

39.0 64.0 15.0 04/18/78 4

40.0 65.0 16.0 10/13/77 2

41.0 66.0 17.0 10/13/77 2

42.0 67.0 18.0 04/18/78 4

43.0 68.0 19.0 04/18/78 4

44.0 69.0 i

20.0 06/18/77 1

45.0 70.0 21.0 05/12/77 0

46.0 71.0 22.0 47.0 72.0 23.0 48.0 73.0 24.0 49.0 74.0 25.0 50.0 75.0 Unit 1 Staff Recommends Approval Unit 2 Staff Recommends Approval I

Approval

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Date

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Approval Date Cognizant Dept. Head Cognizant Dept. Head Unit 1 PORC Recommends Approval Unit 2 PORC Recommends Approval d'/

Date Id F aAh Date tlmh2 Chairrr.an of PORC V Chairrnan of PORC 7

2 Unit 1 Superintendent Approval Unit 2 Superintendent Approval b

Date Lt Date l

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1. I Manager Generation Quality Assurance Approval a

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R APA 2 3 1977 2103-1.4 g

Revision 0 05/12/77 I

THREE MILE ISLAND NUCLEAR STATION UNIT #2 OPERATING PROCEDURE 2103-1.4 I

j REACTOR COOLANT PUMP OPERATION i

Table of Contents t

l SECTION PAGE

1.0 REFERENCES

2.0 1.1 Drawing Applicable for Operations 2.0 1.2 Operating Procedures Applicable for Operation 2.0 1.3 Manufacturers" Instruction Manuals 2.0 1.4 Applicable System Descriptions 2.0 1.5 Curves, Tables, etc.

2.0 2.0 LIMITS AND PRECAUTIONS 3.0 2.1 Equipment 3.0 2.2 Administrative 8.0 3.0 PRERE0VISITES 10.0 4.0 PROCEDURE 12.0 4.1 Reactor Coolant Pump Start-Up 12.0 4.2 Normal Operation 14.0 4.3 Reactor Coolant Pump Shutdown and Lay-up 15.0 4.4 Special or Infrequent Operation 16.0 4.4.1 Reactor Coolant Pump Shutdown at Power 16.0 4.4.2 RCP Restart at Power 17.0 Figures I and IA 18.0 Table I Start-Stop Interlocks 20.0

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Table II Alarm Setpoints 21.0 I

1.0 193 070

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2103-1.4 W/

h) i THREE MILE ISLAND NUCLEAR STATION UNIT #2 OPERATING PROCEDURE 2103-1.4

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REACTOR COOLANT PUMP OPERATION

1.0 REFERENCES

1.1 Drawings Applicable for Operation.

1.1.1 RC Make-Up and Purification, B&R Dwg. 2024.

1.1.2 Intermediate Closed Cooling Water, B&R Dwg. 2029.

1.1.3 Nuclear Services Closed Cooling Water, B&R Dwg. 2030.

1.1.4 R.C. Pump Seal Recirculating and Cooling Water, B&R Dwg. 2601.

1.1.5 Valve Stem Leakoff Piping, B&R Dwg. 2632.

1.1.6 011 Splash Shield Piping for R.C. Pump Motors, B&R Dwg. 2533.

1.2 Operating Procedure Applicable for Operation.

1.2.1 2102-1.3 Unit Startup.

1.2.2 2102-3.1 Unit Shutdown.

1.2.3 2102-3.2 Unit Cooldown.

1.2.4 2104-1.2 Make-Up and Purification.

1.2.5 2104-1.3 Decay Heat Removal.

1.2.6 2104-1.6 Intermediate Cooling.

1.2.7 2104-3.2 Nuclear Service Closed Cooling Water.

1.2.8 2103-1.1 Filling and Venting the R.C. System.

1.3 Manufacturers' Instruction Manual.

1.3.1 Reactor Coolant Pump Motors, Allis Chalmers, No. 09-0007 (B&R File 7).

1.3.2 Reactor Coolant Pumps, Bingham, No. 01-0317 (B&R File 7).

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1.4 Applicable System Descriptions.

I 1.4.1 None.

1.5 Curves, Tables, etc.

1.5.1 Plant Operation Curves, Figure 1 and 1A.

193 071 2.0

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& APR 2 8 y]yg 2103-1.4 Revision 4 04/18/78 1.5.2 RCP Interlocks and Trips, Table 1.

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1.5.3 RCP Alarms, Table 2.

2.0 LIMITS AND PRECAUTIONS 2.1 Equipment.

2.1.1 Pump.

2.1.1.1 See Figures 1 and 1A for the system pressure that must be maintained for required reactor coolant pump.

NOTE:

It.is permissable to start one RC pump outside of the Single Pump in a Loop curve, but within the Two Pumps / Loop curve provided that the second pump is started as soon as feasible, and not to exceed 10 minutes.

2.1.1.2 Seal Injection Water flow and Intermediate Closed Cooling Water to the Reactor Coolant Pumps must be established before starting any of the Reactor Coolant Pumps.

2.1.1.3 Seal Injection water flow must be started at least 30 minutes prior to starting a Reactor Coolant Pump.

2.1.1.4 Seal Injection water flow is required to all Reactor Coolant Pumps when Reactor Coolant temperature is above 200 F.

2.1.1.5 Securing a reactor coolant pump when operating in the loss of injection mode (intermediate cooling still operating) will cause high reactor coolant pump seal temperatures.

2.1.1.6 Maximum allowable temperature of seal water entering the seal return coolers is 185F as indicated by RC-21-TR on Panel 10.

RC-21-TEl RC-P-1A RC-21-TE2 RC-P-1B RC-21-TE3 RC-P-2A RC-21-TE4 RC-P-28 i93 072 3.0

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2103-1.4 APR 2 3 1979-Revision 4 04/18/78 2.1.1.7 Normal Seal Injection flow is 10 GPM/ Pump.

2.1.1.8 Reactor Coolar.t Pump will trip immediately when both Seal Injection water and In,termediate Cooling water are lost.

2.1.1.9 Prior to RC Pump startup with Seal Injection operating, verify Second Seal Staging pressure is approximately two thirds

. system pressure and Third Seal Staging pressure is approximately one third system pressure.

2.1.1.10 Do not start a Make-Up Pump if no others are running and an open flow path to the RC Pump Seals exists.

NOTE:

The restriction bushing in the Reactor Coolant Pump may be exposed to excessive DP.

2.1.1.11 The Seal Return line is necessary to stage the DP across the mechanical seals.

Its normal flow rate is 1.1 GPM as sensed by MU-10-FT1, 2, 3, and 4 respectively for RC-P-1A, B, 2A, B as indicated by computer points 0771-0774.

2.1.1.12 Verify the Seal Return valves close if:

1.

Injection is lost when pump is idle.

2.

Both Stal Injection and cooling water are lost.

2.1.1.13 Maximum Seal Return Flow is 1.9 GPM.

2.1.1.14 To avoid damage to the mechanical seals, the Reactor Coolant Pump must be stopped if Seal Return temperature exceeds 18SF as recorded by RC-20/21-TR on panel 10.

2.1.1.15 Pump Manufacturer shall be notified when RC Pump Steady State vibration measured at the pump coupling reaches 15 mils peak 2

amplitude.

3 NOTE:

During startup of first pump per steam generator shaft vibration of 20 mils is permissible for a 93 073 period not to exceed 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

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2103-1.4 Revision 6 APR 2 3 1979 08/16/78 2.1.1.16 The pump should not be uncoupled from the motor until the Reactor Coolant System pressure is less than or equal to 4_0 psig.

Do not start the injection system when the pump is uncoupled.

2.1.1.17 Prior to starting an RC Pump, open the Seal Return Valves MU-V33A, B, C, D a minimum of 15 minutes to vent the seal cavity area.

Leave the Seal Return Valve open at all times when the pump is operating.

2.1.1.18 Seal Return valves (MU-V33A, B, C, D) should be CLOSED when RCS pressure is less than 150 psig.

2.1.1.19 The RC Pump Seal Leakage Flow alarm point is 0.33 gpm.

If the sum of the Seal Leakage Flow, as indicated by WDL-FIT-7107, 8, 9, 10 respectively for RC-P-1 A,1B, 2A, 2b and the Seal Return Flow, as indicated by computer paint 0771-774 is greater than 1.9 gpm, the pumps must be stopped.

NOTE:

During pressure and temperature transients, seal leakage may exceed the above limits, but as the system stablizes, seal leakage should return to normal levels.

2.1.1.20 Pumps must be tripped when either seal cavity pressure exceeds 2500 psig.

2.1.1.21 Cooling water flow to the pumps must be 50 gpm (-C + 10 gpm) as indicated by local IC-FI-7566, 7567, 7568, and 7569.

2.1.1.22 Maximum seal injection temperature is 125 F.

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2.1.2 Motors.

2.1.2.1 Maximum allowable voltage variation is + 10 percent.

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2103-1.4 l

Revision 2 10/13/77 2.1.2.2 Maximum allowable frequency variation is 15 percent.

2.1.2.3 Maximum allowable voltage plus frequency variation is i 10 percent.

2.1.2.4 Maximum time for locked Motor without damage at 100 percent i

voltage is 11.5 seconds.

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NOTE:

Time to full speed from zero speed - 100 percent l

voltage with no reverse RC Flow is 8 seconds, i

NOTE:

Time to full speed from zero speed - 100 percent voltage with reverse RC Flow (3 pumps operating and j

starting fourth Pump) is 11 seconds.

2.1.2.5 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 attempt.ed.

2.1.2.6 Minimum speed without high pressure oil lift pumps operating is 300 RPM.

2.1.2.7 Maximum allowable thrust bearing temperature is 200 F (this is a shutdown point) as indicated by the fc!!c,-ing cc puter pe,i nts. Maximum allowable radial bearing temperature is 185 F as indicated by the following computer points (this is a shutdown I

point).

i Thrust Bearing Temoerature 0426 RCP 1A 00WNTh.'UST BRG TEMP 0427 RCP 18 DOWNTHFUST BRG TEMP

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0428 RCP 2A DOWNTHRUST BRG TEMP 0429 RCP 2B DOWNTHRUST BRG TEMP 6.0

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APR 2 3 1975 -

2103-1.4

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Revision 2 10/13/77 0430 RCP 1A DOWNTHRUST BRG TEMP 0431 RCP 1B DOWNTHRUST BRG TEMP 0432 RCP 2A 00WNTHRUST BRG TEMP 0433 RCP 2B DOWNTHRUST BRG TEMP j

Radial Bearino Temoeratures 0434 RCP 1A UPPER RADIAL BRG TEMP l

0435 RCP IB UPPER RADIAL BRG TEMP I

0436 RCP 2A UPPER RADIAL BRG TEMP 0437 RCP 2B UPPER RADIAL BRG TEMP 0438 RCP 1A LOWER RADIAL BRG TEMP 0439 RCP IB LOWER RADIAL BRG TEMP 0440 RCP 2A LOWER RADIAL BRG TEMP 0441 RCP 2B LOWER RADIAL BRG TEMP 0

2.1.2.8 Maximum allowable stator temperature 150 C (302 F), as indicated by computer points 1670, 1671, 1672 and 1673 respectively for RCP 1A, 2B, 2A, and 18 stator temperature.

2.1. 2. 9 Maximum allowable time without cooling water is 10 minutes including coastdown time.

2.1.2.10 Minimum allowable voltage at motor terminals during starting is 80 percent.

2.1.2.11 The backstop and oil lift pumps must be running prior to or at 500 RPM when the RC Pump Motor is de-energized. The pumps should auto-start when RC dump speed decreases below 1098 RPM or upon RC pump trip.

k 2.1.2.12 Approximate motor current for the four pump cold RC 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.

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2103-1.4 APR G79,

Revision 5 06/28/78 NOTE:

A power factor of.9 or greater is considered to be no rmal.

2.1.2.14 No operations involving breaching of an oil hydraulic system on a RCP motor are to be performed until the RC System has U

been cooled to below 400 F.

This includes maintenance, troubleshooting, fill and drain.

2.1.2.15 Minimum coolic,g water flow (95 or less) to each RC Pump motor air cooler is 80 GPM (alarm setpoint).

If the NSCCW temperature U

increases to 105 F, 176 GPM per cooler is required.

2.1.2.16 Minimum cooling water flow to upper bearing cooler is 50 GPM per cooler (alarm setpoint), and maximum flow is 75 GPM.

2.1.2.17 Minimum cooling water flow to lower bearing oil cooler is 8 GPM (alarm setpoint), and maximum flow is 12 GPM.

2.1.2.18 Maximum cooling water flow to each RC Pump Motor Air Cooler is i.

110 GPM.

There are 2 coolers per motor, with common inlet and outlet or a maximum flow of 220 GPM per pump motor, for air coolers.

2.1.2.19 Maximum cooling water temperature to RCP motor air and lube U

oil coolers is 105 F.

2.1.2.20 To minimize vent valve noise during RCP startup, start RC-P-2A or RC-P-2B first, followed by the second pump in that loop.

Secure pumps in the opposite order.

2.2 Administrative.

2.2.1 Never start two R.C.P.'s simultaneously.

Start the second pump after the starting current from the first pump returns to

~a normal running current.

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2103-1.4 Revision 5 O

06/28/78 2.2.2 If available, loose parts monitor should be energized and volume turned up prior to starting a Reactor Coolant Pump.

2.2.3 Class 1E Electrical System lined up per 2107-1.2 prior to starting R.C.P.'s.

2.2.4 R.C.P.'s must be tricoed if:

2.2.4.1 Motor bearing temps. exceed the following:

Upper & Lower Guide 185 F (computer pts 434-441).

Up & Down Thrust 200 F (computer pts 426-433).

U 2.2.4.2 Motor Stator temp. exceeds 150 C (302 F) (computer pts 1670-1673).

2.2.4.3 Loss of Cooling Water to the motor coolers.

2.2.4.4 Pump Seal Return, Leakage or seal recirculation outlet temperature outlet exceeds 185 F as recorded on Panel 10.

2.2.4.5 Motor stand vibration exceeds 3 mils (0.003 in.).

t 2.2.4.6 Air cooler leak detection alarm (computer alarm pts 2999-3002).

2.2.4.7 Shaft vibration from IRD System exceeds 20 mils for four hours.

2.2.4.d Shaft vibration exceeds 30 mils under any conditions.

2.2.4.9 Either seal cavity pressure exceeds 2500 psig as recorded on Pane! 8.

2.2.4.10 Seal Return flow plus Seal Leakage flow exceeds 1.9 gpm.

2.2.4.11 When both seal injection water and intermediate closed cooling water to pump are lost.

2.2.5 The pump may be operated with any two seals leaking.

Leakage

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u of a seal is indicated when seal cavity pressures indicate the

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following:

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2103-1.4 APR 2 3 1973 [

Revision 4

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04/18/78 System pressure Lower seal leaking

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P

=

2 P

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System pressure Lower Seal leaking 3

P b System pressure Middle seal leaking

=

2 P

h System pressure Middle seal leaking

=

3 P2 System pressure Upper Seal leaking

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P3 0 pressure Upper Seal leaking

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P2 System pressure Lower 2 seals leaking

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P3 System pressure Lower 2 seals leaking

=

P2 0 pressure Upper 2 seals leaking

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P 0 pressure Upper 2 seals leaking

=

3 P

System pressure Upper and Lower seals leaking

=

2 P

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0 pressure Upper and Lower seals leaking h0TE:

All values are approximate.

Destaging may cause only a partial AP across a seal.

i 2.2.6 If full Reactor Coolant System pressure exists in the upper seal cavity, and this condition persists, a ple.n ed unit shutdown should be scheduled.

2.2.7 Maintain seal cavity pressures at approximately 1/3 and 2/3 system pressure.

2.2.8 Verify the individual pump Seal Injection flow control valves (MU-V379, MU-V380, MU-V381, MU-V382) have been set for equal flows, about 10 gpm to each pump.

2.2.9 Do not run Lift Oil System longer than 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to prevent carbonizing oil.

2.2.10 The high pressure lift pumps should stop after the main motor j

has reached 1098 RPM.

i 3.0 PREREOUISITES Indicat? Satisfactory Completion of Each Step by Ini,tialing the Blanks for Each Step.

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APR 2 3 1979

[p 2103-1.4 Revision 0 05/12/77 3.1 The Nuclear Services Closed Cooling Water System is in normal operation per 2104 3.2.

3.2 The Intemediate Closed Cooling Water System is in normal l

operation per 2104-1.5.

3.3 The BOP Auxiliary and Class lE Systems are lined up for normal operation per 2107-1.1 and 2107-1.2.respectively.

3.4 Place the control switches for the RCP's in PULL-TO-LOCK and I

i the DC powered HP lift pumps in OFF and position the circuit f

breakers as follows:

3.4.1 RCP's lA and IB bkrs. racked in on 6900 V A.C. BUS 2-1.

3.4.2 RCP's 2A and 2B bkrs. racked in on 6900 V A.C. BUS 2-2.

3.4.3 Insure "69" switches for RCP bkrs. are in normal position with red flags showing.

3.4.4 Backstop oil pump bkrs. racked in and closed on following MCC:

MCC 2-32A Units 6 BR; 6 DR RCP-1A MCC 2-22? Units 7 BR; 7 DR RCP-18 MCC 2-42A Units 6 BR; 6 DR RCP-2A MCC 2-42A Units 7 CF; 7 EF RC?-2B 3.5.5 H.P. oil lift pump bkrs. racked in and closed on following MCC:

3.5.5.1 RCP-1A MCC 2-32A Unit 6 FF; BUS 2-lDC Unit U214C.

3.5.5.2 RCP-1B MCC 2-32A Unit 7 FF; BUS 2-lDC Unit U2140.

3.5.5.3 RCP-2A MCC 2-42A Unit 6 EF; BUS 2-2DC Unit U224C.

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l 3.5.5.4 RCP-2B MCC 2-42A Unit 7 DR; BUS 2-20C Unit U2240.

I 3.5.6 Verify all oil reservoirs are filled by absence of low level alarms.

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i Revision 0 05/12/77 3.5.7 Power available to all associated RCP controls and instrumen-1 I

tatien. Verify all instrumentation is working properly.

3.5.8 Insure that a Make-Up Pump is running on minimum flow recirc. mode.

4.0 PROCEDURE Indicate the Satisfactory Completion of EAch Step by Initialing the Blanks for Each Step.

4.1 Start-Up 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 0

(less than 200 psig and less than 200 F). Three RCP's will be started when NPSH requirements have been met and will be used to heat the plant up to 500 F where the fourth RCP will be started and the heatup completed.

4.1.1 Start seal injection flow to RCP's per 2104-1.2 and verify flow to seals by clearing Pump Loop Seal Injection Flow Low Alarm (Window 8.B37).

4.1.2 With the RCS pressure greater than 150 psig, per 2104-1.2, Open RC Pump Seal Return Valves (MU-V33A, B, C, 0). This must be done at least 30 minutes prior to pump startup to assure full venting of the seal cavities. Make sure seal return'is lined up to Make-Up tank per 2104-1.2.

4.1.3 If the RC System or MU System has been drained since seal injection was last stopped, vent or verify vented the seal j

cavities as folicws:

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2103-1.4M23m Revision 4 g-04/18/78

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RC-P-1A RC-P-lB RC D-2A RC-P-2B 4.1.3.1 OPEN iso valve MU-V416 MU-V420 MU-V424 MU-V428

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4.1.3.2 OPEN iso valve MU-V418 MU-V422 MU-V426 MU-V430 4.1.3.3 SLOWLY OPEN vent valve MU-V417

'MU-V421 MU-V425 MU-V429 4.1.3.4 Allow to vent for 2 minutes.

4.1.3.5 SLOWLY OPEN vent valve MU-V419 MU-V423 MU-V427 MU-V431 4.1.3.6 Allow to vent for 2 minutes.

4,1.3.7 CLOSE MU-V419 MC-V423 MU-V427 MU-V431 4.1.3.8 CLOSE MU-V417 MU-V421 MU-V425 MU-V429 4.1.3.9 CLOSE MU-V418 MU-V422 MU-V425 MU-V430 4.1.3.10 CLOSE

!iU-V416 MU-V420 MU-V424 MU-V428 4.1.4 Verify RCS pressure iS within limits of Figure 1 and 1 A.

4.1.5 Start one RCP's oil lift pump and backstop pumps. These must be on for a least 60, seconds prior to pump start.

This should be done manually be depressing the Lube System Test button.

4.1.6 Assure that RC Pump and Motor alarms are cleared and no condition exists that would be injurious to pump and motor operation. Abort motor start if such a conditon exists.

NOTE:

As directed by Unit Heatup, start RC pumps per the following steps.

4.1.7 Start the RCP by going to START on its control switch on Panel 4.

4.1.8 After pump starts, verify the lif t and backstop pumps have stopped when the pump roaches fuli speed.

NOTE:

If for any reason the pump does not start or trips off during a start attempt, do not em 82 13.0 4

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2103-1.4 Revision 4 O-04/18/78 to restart the pump until the cause is determined and corrected.

4.1.9 Carefully observe a~.

alarmed parameters associated with the pump and motor performance to verify proper operation.,

NOTE:

Do not operate a single RC pump outside of Figure 1 A, Curve 3 for more than ten minutes.

If second pump in the same loop cannot be started, trip the single pump.

4.1.10 Repeat steps 4.1.2 through 4.1.9 to start a second RCP in j

the same loop as the first pump.

l NOTE:

Prior to starting a 3rd RCP, rod groups 1-4 should be withdrawn as directed by Unit Heatup.

4.1.11 Per 2102-1.1 insure Curve 3 of Figure 1A is met, and repeat steps 4.1.2 through 4.1.9 to start a third RCP.

U NOTE:

Expected heat up rate of 30 F per hour with 3 RCP's operating.

4.1.12 When RCS temperature exceeds 525 F (fourth pump starting interlock) start fourth pump per steps 4.1.2 through 4.1.9 above.

4.2 Mormal Operation.

During normal operation, the four RC pumps will be operating wi.hin the parameter limits of Table II.

NOTE:

If an abnormal condition exists, follow up per tSe applicable alarm respor.se, or 2203-1.4 RC Pump and Motor Emergencies.

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4.3 RCP Shutdown and Layup 2

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

4.3.1 As d' cected by Unit Shutdown /Cooldown pr6cedur,es, irY3 0 8 one RC pump in each loop as follows:

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APR ? 3 1979 2103-1.4

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Revision 4 /lf.

04/18/78 C A' g.

4.3.1.1 Verify that jower is availuble to all oil pumps by observing green indicating lights.

4.3.1.2 Trip RCP by placing control switch an Panel 4 to stop after the power is within RPS limits and verify that oil pumps have started.

If not, attempt to manually start oil pumps by using " Test pushbutton at Panel 4".

4.3.1.3 When pump has stopped rotating approximately 8 mir:utes, the oil lift and backstop pumps should be tripped off.

4.3.1.4 Maintain seal injection flow and I.C. cooling flow.

NOTE:

On emergency trip refer to 2203-1.4.

4.3.2 Ensure NPSH limits are maintained per Figure 1 and 1 A for operating pumps during icw RCS pressure condition.

4. 3. 2.1 After the RPS is placed in Shutdown Bypass, go to two pump in a loop operation by starting a non-operating RCP i

pump and tripping the single pump in a loop.

Insure RCS pressure and temperature stays within the limits of Figure 1, curve 4.

4.3.3 As directed by Unit Shutdown /Cooldown, trip the remianing

C pumps per steps 4.3.1.1 to 4.3.1.4.

4.3.4 After all RC pumps have been stooped and the RCS pressure is <200 psig and temp <200 F, s.ecure Nuclear Services Closed Cooling Water and Intermediate Closed Cooling Weter per their applicable procedures.

4.3.5 Close Pump Seal Return Valves (MU-V33A, B, C, 0).

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4.3.6 Secure seal injection to the RC pumps by insuring an 2

alternate flow path available for the operating Make-Up Pu...p, and closing MU-V378.

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Revision 2

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10/13/77 i

4.3.7 Hand rotate RCP's once a week as radiation levels permit as I

folicws:

4.3.7.1 Start lift and backstop oil pumps.

4.3.7.2 Hand rotate RCP.

4.3.7.3 Operate oil pumps for 5 minutes.

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4.3.7.4 Secure oil pumps.

I NOTE:

Nuclear Services Closed Cooling Water to motor oil coolers should be established for hand rotation of the pumps as above.

4.4 Special or Infrequent Operation.

Indicate Satisfactory Completion of Each Step by Initialing the Blank.

If a RCP must be shutdown during power operation, power should be icwered 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 i

or shutdown should be known and its cause corrected, all interlocks and safety alar:ns must be satisfied.

The pump may not be restarted until the reactor power has been reduced to

_.._ ____30% of full pcwer.

4.4.1 P.CP shutdown 0 power.

l 4.4.1.1 Reduce power within RPS limits.

I 4.4.1.2 Verify that power is available to all oil pumps by observing z.

green indicating lights.

16.0 193 085 2

~_

MR2 yn 2103-1.4 Revision 2 10/13/77 4.4.1.3 Trip RCP by placing control switch on Panel 4 to stop i

after the power is within RPS limits and verify that oil pumps have started.

If not, attempt to manually start oil pumps by using " Test pushbutton at Panel 4".

4.4.1.4 When pump has stopped rotating approximately 8 minutes I

the oil lift and backstop pumps should be tripped off.

4.4.1.5 Maintain seal injection ficw and Intermediate Closed cooling flow.

NOTE:

On emergency trip refer to 2203-1.4.

4.4.1.6 Reset RPS trips tc correspond to operating RC pump combinations.

4.4.2 RCP restart @ pcwer.

4.4.2.1 Initial cause of trip corracted.

4.4.2.2 Reduce reactor power to <30" of full power.

4.4.2.3 Start an oil lift and backstop oil pump 5 minutes prior to start of RCP. This should be done manually depressing the Lube System Test button.

4.4.2.4 Verify all alarms cleared and all interlocks satisfied for associated pump., Abort start if all alarms do not clear.

4.4.2.5 Af ter pump starts, verify the '.ift and backstop pumps have stopped when pump reaches full speed.

4.4.2.6 Reset RPS trips to correspond to operating RC pump combinations.

NOTE:

If for any reason the pump does not start or trips off during a start attempt, do not attempt

.I.

2 to restart the pump unti.1 the cause has been determined and corrected.

193 036 17.0

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7, na a &n ~ o i l .:.e 2103-1.4 k Revision 1 I i. i 06/18/77 i I I t Table I i' Interlocks ! A. Start Setpo int 1. Tenperatu e Svitch 500*F 3CS Te=p. 2. F.igh Pre s s. Oil Lif t Sys. ?: es s. 1800 psig 3. Upper Reservoir Oil Level 8.2 in. l 4 Lever Reservoir 011 Level 9.8 in. I 5 Seal Injecticn Flow 6 g,. I 6. Seal Ccoling 'Jater Flov 50 gym 7. Air Cooler Cooling Water Flov 160 gps 8. Lever 3rg Ccoling Water Flov 8 gp= 9 Upper 3rg 51 Ccoling '4ater Flov 50 gps 10. Upper Erg #2 Ccoling Water Flov 50 spc 11. Zero Speed 0.5 rps l 12. Reactor Power less than 30% l 3. Trips { l. Running Undervoltage l 2. Instantanecus Overcurrent 3. ~ Current Differential h. Less of both IC and seal injection to pu=ps 5 Ther:21 Overicad 6. Phase Salance S l 5 g s 193 089 20.0 4 m a e.. me .,.-me

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