ML19209B675

Surveillance of Feedwater Pump Turbines Required by Tech Specs,As of 790609

ML19209B675
Person / Time
Site:	Three Mile Island
Issue date:	06/09/1979
From:	Ross M METROPOLITAN EDISON CO.
To:
References
NUDOCS 7910100301
Download: ML19209B675 (7)

Text

.. . OPEPAT! Oils SURVEILLA!!CE Ob-I/O /

ve*1" ff/A Pl/a Saturdav 7-3 Frequency Montn Week Day Snift TITLE: Feedwater Pumo Turbines

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SURVEILL A'lCE (Accentance)

1. CR0 punch out following conputer points and attach printout to this data sheet and return to Ops. Engineer:

Pararr'ter "A" F.W.P.T. "B" F.U.P.T.

Printout this Printout this Ranaes column first column 2nd Expected Como. PT.# Como. PT.# Value Max. Min.

Main Turo. Gen. Load 98 880!t4 50fte 320 321 5800 0 Feed Pno Turb. Soeed Feed Pac Turo. Exhaust Pressure 28 29 28" 30" 25" Feed Pmo Disch. Pressure 30 31 Pac Feed Water Flow 21 22 H.P. Steam Inlet Temo. 41 43 535 570 530 L.P. Steam Inlet Ten.o. 42 44 370 390 360 H.P. Steam Vlv. Temo. 93 94 480 560 450 F.P. Inboard Bearina tietal Temo. 244 247 1gR 170 130 F.P. Outcoard Bearina tietal Temo. 245 248 14R 170 130 F.P. Inrust Bearing tietal Temo. 246 249 130 160 125 Turb. Active Thrust Bra. tietal Temo. 292 298 135 145 125 Turb. Inactive Thrust Bro. lietal Temo. 293 299 125 135 l?O Turb. Outboard Bro. Metal Temp. 294 300 170 180 160 Turb. Inboard Grg. Metal Temp. 295 301 170 180 160 Turb. Outboard 011 Orain Temo. 296 302 130 140 120 Oil Teno. Out of tne Cooler 297 303 120 130 120 Turb. H.P. Brg. Vibration 306 308 4 5 0 Turb. L.P. Bro. Vibration 307 309 4 5 0 Pao Inboard Bro. Vibration 310 312 <1 5 0 Pmo Outboard Bra. Vibration 311 313 <1 5 0 Indicate Turb. Vlv. Position A B Ifrom PLF) <

2. Perfom AUTO START of Aux. Oil Pump per attached procedure. A Pump (/ OK)

B Pump (/ OK)

3. Perfom AUTO START of D. C. Emergency 011 Pung per attached procedure.

A Pump (/ OK)

B Pump (/ OK)

4. Perfom Thrust Bearing Wear Test per attached procedure. A Turbine (/ Ors)

B Turbine (/ OK)

5. Perfom the Oil Reservoir Hi/Lo level arm test per attached procedure.

' ~~

A Reservoir (/ OK)

D Reservoir (/ CK)~

Foward to Ops. Engineer / Supervisor of Ops._after approval signature.

- . Supervisor of Operations: . ,

Approval: W/ 7 Perfomed By:

Date: 9!'79 Approved By:

Da-

. 7910100 h / '

OPS Form #0PS-5101 (continued)

AUTOMATIC START TEST OF AUXILIARY OIL PU!!P CAUTION:

The Feed Pumo Turbine must be operating above 3000 RPit and both the auxiliary oil pump and the D. C. energency bearing oil pump control switches should be in " normal af ter stop" position before performing this test.

Stimulate low pressure at the auxiliary oil pump automatic (INITIAL) 1.

A B start pressure switch by pressing the auxiliary _ oil _ oumo test _

oushbutton located to the left of the electrical console on the lef t side of the turbine oil tank.

2. The auxiliary oil pump should start and come to full speed.

Let pump run for one-half hour.

3. Af ter completing step 2, have Control Room Operator stop pump and leave control switch in " normal after stop" position.

4. Record any comments.

Performed by:

Date

!l3b 220

Ops. Forn .0PS-S con .

AUT0"ATIC START OF D.C. Ef1ERGENCY BEARI]G OIL PUMP f:

CAbTIO.l: (A) The Feed Pump Turbine must be operating above 3000 RPM and both the auxiliary oil pump and the D.C. energency bearing oil pumo control switches should be in " normal after stop" cosition.

OR (B) If turbine is operating below 3000 RPM, the auxiliary oil pump must be running and the control switch for the D.C. emergency oil pump should be in " normal after stop" position before perforning this test.

(INITIAL)

_ t[, B

1. Sinulate low pressure at the emergency oil pump automatic start pressure switch by pressing the turning gear oil pump test pushbutton located to tne lef t of the electrical console on the left side of the turbine oil tank.

2. The pump should start and come to full speed. Let pump run for one-half hour.

3. Af ter completing step 2, have Control Room Operator stop pump and leave control switch in " normal af ter stop" position.

4. Record any comments:

Performed By:

Date:

L i13S 221 e

4 Ops. Form OPS-5101 cont'd.

THRUST BEARING WEAR TRIP TEST CAUTION: The turbine is not protected against thrust I

I bearing failure during this test. Notify Control Room Operator before starting test and when test is completed.

(Initial)B A

1. The key switches for performing this test are located at the feed pump turbine front standard control panfl.

2. Turn the key in the thrust bearing wear test keyswitch to the pretest position and remove. This action disables the trip function by removing the trip contacts on pressure switches PS2 and PS12 from the trip circuits.and activates the test light circuits. Verify that the active and inactive

' thrust wear test complete lights come on and that the control room receives the "FPT Thrust Bearing Wear Trip Locked Out" alarm.

3. Insert' key in active thrust wear test switch and turn to test position. The active thrust wear test complete light will 3 0 out.

Return switch to normal positior. The test complete light will rame on again, and must remain on steady. Any light indications different from those specified indicate a malfunction in the test circuits or an actual thrust wear problem and must be reported.

Remove key.

4 Repeat step 3 for the inactive thrust wear test switch.

CAUTION: Proceed with step 5 only if both inactive and active test complete lights are on steady. The turbine will trip if the thrust bearing wear test key switch is rotated to the normal position when one of the lights is off or blinking.

1135 222

OPS Form #0PS-101 cont'd

. A 8

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'I 5. Insert key back into thrust bearing wear test keyswitch and rotate to nomal position. This action enables the tr.p function by putting the trip contacts of pressure switches PS2 and PS12 back in the trip circuits and The two test complete lights deactives the test circuit.

will go out and the control room alarm will clear.

6. Record any coments:

Performed By:

Date:

' i135 223

r. ,

TEST OF OIL RESERVOIR HI/LO LEVEL ALAR?t (I!!ITIAL)

A B

1. The handle for the oil reservoir Hi/Lo level alarm test is located on the ight side of the electrical junction box mounted on the lef t side of the turbine oil tank.

2. Push test handle to High level position. Control room should receive "FP/TURB A/B oil level Hi-Lo" alarm.

3. Release test handle. The control room alarm will clear.

4. Push the test handle to the low level position. The control room should again receive the alarm.

5. Release the test handle. The control room alarm should clear.

6. Record any comments:

' Performed by:

Date 113b 2.2:'4 O

OPEPATI0ftS SURVE?LLAf!CE Monthly N/A 2nd Sat. 7-3 Frequency Itontn Week ;ay Shift TITLE: EXERCISE THE FEEDPUMP TURBINE EMERGENrY GOVEPNOR (OIL TRIP TEST)

SURVEILLA?;CE (Acceotance)

CAUTION: Make sure green normal and reset lights are on before starting test.

Notify Control Room Operator before starting test.

Should require two operators in case the reset light will not stay on for communications. A B FPT FPT Thh test is performed at the turbine front standard control N 1.

2. Turn lockout control switch to lockout position. The green normal light will go out and the red lockout light comes on.

(Initial)

CAUTION: Do not release lockout control handle until completion of testing. Do not continue testing if lockout light does not come on.

3. While holding lockout control in lockout position, push the overspeed trip test pushbutton. The red trip exercised light will come on and the green reset light will go off.

-; (Initial)

4. Push the reset pushbutton. The reset light will again come on and the trip exercised light will go off. (Initial)

CAUTION: The reset light must be on steady before releasing the lockout switch. The turbine may trip if the lockout switch is returned to normal and the reset light is not on steady.

5. When the reset light stays on, release the lockout control switch.. The lockout light will go out and green normal light will come on. (Initial)

6. Record any comments:

Forward to 9ps. Engineer / Supervisor of Ops, after approval signature.

Supervisor of Operations:3h '2 2 C Approval : [ P-u Perforned By: Date: b / Approved By:

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