ML20138K499
| ML20138K499 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 01/31/1997 |
| From: | WISCONSIN ELECTRIC POWER CO. |
| To: | |
| Shared Package | |
| ML20138K159 | List:
|
| References | |
| ORT-4-01, ORT-4-1, NUDOCS 9702180379 | |
| Download: ML20138K499 (21) | |
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NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE O UNIT 2 Date RECORD DSS PROCEDURE VERMED CURRENT AND CHECKED FOR TEMPORARY CHANGES IF FIELD COPIES REQUIRED. USE PBFM IAW NP I.2 4 AND DO FQI COMPLETE T103 BLOCK BY: DATE:
10 PURPOSE To verify operability of mechanical overspeed trip mechanism and record the trip setpoint in accordance with:
1.1 PBNP Technical Specification Table 15.4.1-1 1.2 Westinghouse Turbine Manual, Volume 1, Tab 23, Page 10, Item 22 and Tab 24, overspeed trip mechanism
2.0 REFERENCES
IR 96-006, NRC Inspection Report, NRC Commitment for Operations procedure PMT/QC reviews.
INITIALS 3.0 INITIAL CONDITIONS 3.1 The turbine generator must be in operation maintaining 210% load for at least a period of eight hours prior to checking the overspeed of the unit.
i 3.2 Have I&C obtain a fire barrier penetration permit, install frequency counter l and verify as operable. !
3.3 I&C personnel available to defeat and enable independent overspeed protection system of both units when instructed to do so by the duty shift superintendent.
3.4 98% and 102% of the last recorded overspeed trip point have been calculated. (Use average ofprevious three trip points from previous ORT
] test.)
98% rpm , 102 % rpm p.
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9702180379 970210 Page1 of21 CONTINUOUS USE PDR ADOCK 05000301 ..
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- NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR i Revision 9 j MAIN TURBINE MECHANICAL OVERSPEED January 31.1997 j TRIP DEVICE UNIT 2 l
INITIALS NOTE: If the unit will not be returned to service upon completion of this test (eg., the test is being conductedprior to a refueling shutdown), then l Section 5.0 is theproper section to be used.
}
3.5 Perform cither Section 4.0 or 5.0 for taking the turbine offline. Check the appropriate section to be used.
Section 4.0 - taking turbine generator offline while maintaining reactor ;
power ()
Section 5.0 - taking turbine generator offline and reducing reactor Power () ]
l NOTE: Ifturbine unloading limitations were calculated aspart oframping down per OP-3A, then it is not necessary to do them again. :
1 3.6 Turbine unloading limitations calculated per CL-lC.
3.7 Permission to Perform Test The conditions required by this test are consistent with required plant conditions including equipment operability. Permission is granted to perform this test.
DSS Time Date t 4.0 TAKING THE TURBINE GENERATOR OFF LINE WHILE MAINTAINING REACTOR POWER WITH THE CONDENSER STEAM DUMPS.
4.1 Verify reactor power at ~28%.
1 4.2 Place the steam generator level programmer LM-463F in rack C-127 in manual. ~~
4.3 Record the following reference valves.
4.3.1 Turbine first stage pressure, PI-485 psig 4.3.2 4.3.3 Turbine EH reference setting g \
Auctioned T.,,, HI TAVG ppes or TR-401 F Page 2 of 21 CONTINUOUS USE
NUCLEAR POWER. BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 g TRIP DEVICE
(
UNIT 2 INITIALS 4.3.4 " Tref', " Tref" ppes or TR-401 *F 4.3.5 Percent nuclear power, AVGPWR ppes or NR-41 %
4.3.6 Steam header pressure, PI-484 psig 4.4 Verify the steam generator atmospheric steam dump controllers set at 1050 psig and are in " auto."
4.5 Verify the condenser steam dump mode selector and the steam dump controller, HC-484 are in " auto."
4.6 Adjust the condenser steam dump controller, HC-484, setpoint to null the deviation meter. The setpoint should match existing steam header pressure PI-484 t5 psig.
NOTE: ifany condenser steam dungp(s) open when the mode selector is placedin manual then M agust HC-484 segpoint tojust shut the O condenser steam dungp(s).
4 4.7 Place the condenser steam dump mode selector to manual.
4.8 Place the rod control selector switch to manual.
1 4.9 If required, transfer the unit auxiliary loads from X02 to X04.
4.10 Return to two sets of" oil cooling fans with pumps" on each phase of the '
X01 McGraw Edison transformers by transferring the control switch from
" manual" to " auto."
4.11 Secure any nitrogen purge on the X01 transformer tank gas spaces. _
l l
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Page 3 of 21
. CONTINUOUS USE.
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 2 INITIALS
.r NOTE: As the turbine h rh, ped offline the operator should:
Maintain T.,, close to the value ofStep 4.3.3 by use ofcontrol rods, dilution or boration. Condenser steam dumps should nat be adjusted during theload change Monitor condenser steam dump operation. Steam dumps should open to maintain steam headerpressure at the reference value of Step 4.3.6.
4.12 Begin reducing turbine load in accordance with limitations of CL-lC.
4.13 When turbine load is reduced to s20%, open the turbine drain valves.
4.14 Shut the crossover steam dump MOVs and place their control switches to stop. Verify locally MOVs OS-1 and OS-2 are full shut.
4.15 Isolate the crossover steam dump header drain bottle outlet.
Unit 2, Bottle No. 3 Shut OS-33, OS-5937 outlet isolation Shut 05-35, ST-5965 outlet isolation 4.16 Reduce load to approximately zero MWe and MVar.
4.17 If on automatic voltage regulation, zero the null voltmeter.
4.18 Start the seal oil backup pump, P37B and the AC turning gear oil l
pump P37C.
4.19 Main Generator Ooerations 4.19.1 Place the " turbine trips / generator breaker trip to lockouts" j switch 2-43TG02/3 in defeat.
O
. Page 4 of21 CONTINUOUS USE
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE y UNIT 2 INITIALS
- CAUTION
- IF THE MAIN TURBINE SPEED INCREASES UNCONTROLLABLY WEEN THE MAIN GENERATOR BREAKER IS OPENED, IMMEDIATELY TRIP THE TURBINE.
4.19.2 Trip the generator breaker.
4.19.3 Trip the generator exciter field breaker.
4.19.4 Place the " turbine trips / generator breaker trip to lockouts" switch 2-43TG02/3 in operate.
4.19.5 Check that the EH Turbine control has shifted to " Speed i Control."
4.19.6 Place the voltage regulatorin OFF.
4.19.7 Run the base adjustment to the lower limit.
4.20 Continue with Step 6.0 "Overspeed Trip Testing."
5.0 TAKING TURBINE GENERATOR OFF LINE AND REDUCING REACTOR POWER 5.1 Decrease load and remove turbine / generator from line by completing the applicable portions of OP-3 A and CL-lC.
5.2 Continue with Step 6.0 "Overspeed trip testing."
6.0 OVERSPFFn TRIP TEST NOTE: Refer to DCS 3.1.25, Crossmer Steam Dung System Operability and -
IOPS Administrative Limits.
6.1 Enter administrative LCO for defeating Unit 1 IOPS.
Page 5 of 21 CONTINUOUS USE G I
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NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 2 TRIP CYCLE I 2 3 l
6.2 Have I&C defeat IOPS of both units by opening individual sliders. N/A N/A 6.3 Disable the overspeed protection controller by turning the auxiliary governor key switch to the overspeed test position. N/A N/A 6.4 With the setter approximately two percent below the previous overspeed trip setting and the acceleration rate at 50 rpm / min.,
depress the go pushbutton. Wait until the go light is out and turbine speed has stabilized.
6.5 With the setter at two percent above the previous over-speed trip setting, and the acceleration rate at 50 rpm / min., depress the go pushbutton. Observe the frequency meter installed by I&C and record the speed at which the unit trips (cycles / min = rpm).
NOTE: Log trip speednot run up speed.
First rpm Second rpm Third rpm 6.6 Latch the Turbine 6.6.1 Reference and setter displays energized and reading 0000.
4 6.6.2 Reset the turbine trip lever.
6.6.3 Depress the turbine trip reset button at CO3.
6.7 Check the Following 6.7.1 " UNIT TRIP" light off.
6.7.2 " SPEED CONTROL
- light on.
6.7.3 "STOP VALVE OPEN" lights on. -
Page 6 of 21 CONTINUOUS USE
f NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 :
- TRIP DEVICE UNIT 2 INITIALS TRIP CYCLE I 1 2 3 6.7.4 " GOVERNOR VALVE CLOSED" indicating lights on.
6.7.5 " TURBINE MANUAL" light on.
- CAUTION
- FROM 1000 TO 1400 RPM, THE RATE SHOULD BE 300 RPM / MIN. THE TURBINE SHOULD NOT BE HELD AT AN RPM NEAR THE CRITICAL VALUE OF ABOUT 1250 RPM.
6.8 As the reference display approaches the speed of the turbine, the speed reference channel light will go out; at this point depress the operator auto pushbutton, set the acceleration rate at 100 rpm / min., and the setter approximately 1800 rpm, then push the 80 Pushbutton. Wait until the go light is out and turbine speed O~ has stabilized.
6.9 Return to Step 6.4 N/A 6.10 Average the trip data from Step 6.5.
First -+ Third Average rpm If the average trip speed is outside of the acceptable range then contact superintendent - Maintenance for recommendations.
- Acceptable Range 103.9% to 105.0%
(1870.2 rpm to 1890 rpm)
Page 7 of 21 CONTINUOUS USE
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELINO TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 2 INITIALS NOTE: The remaining steps ofSection 6.0 may beperformedprior to the completion ofStep 6.11 and 6.12.
Phil 6.11 Have I&C enable IOPS for both units as follows:
6.11.1 At Unit 1 IC-75, Independent Overspeed Protection System Panel, Valve Channel A, verify no "A" train trip signals present as follows:
- a. Connect multimeter to terminals P1 and N1 to check proper operation of voltmeter.
- b. Remove test lead from terminal Pl AND check all rack side slider block terminals for no voltage present.
- c. Remove test lead from terminal N1 AND set multimeter to measure ohms.
- d. Check for an open condition between rack side slider block terminals 29 and 30.
IC 6.11.2 At Valve Channel B, verify no "B" train trip signals present as follows:
- a. Set multimeter to measure volts.
- b. Check between all rack side slider block terminals and terminal N1 for no voltage present.
- c. Remove test lead from terminal N1 and set multimeter to measure ohms.
IC __
- d. Check for an open condition between rack side slider block terminals 29 and 30.
6.11.3 At Unit 1 IC-75, Independent Overspeed Protection System Panel, close all sliders.
IC O\
l Page 8 of 21 CONTINUOUS 'USE
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 q TRIP DEVICE Q UNIT 2
, INITIALS INDEPENDENT VERIFICATION 6.11.4 At Unit 1 1C-75, Independent Overspeed Protection System Panel, check all sliders are CLOSED.
Verifier Initials Time Date IC 6.11.5 At Unit 2 2C-75, Independent Overspeed Protection System Panel Valve Channel A, verify Da "A" train trip signals present as follows:
- a. Connect multimeter to terminals P1 and N1 AND check
- proper operation ofvoltmeter.
- b. Remove test lead from terminal P1 AND check all rack side
, slider block terminals for no voltage present.
- c. Remove test lead from terminal N1 AND set multimeter to 1 '-
measure ohms.
- d. Check for an open condition between rack side slider block j terminals 29 and 30.
IC 6.11.6 At Wlve Channel B, verify no "B" train trip signals present as follows:
- a. Set multimeter to measure volts.
- b. Check between all rack side slider block terminals and terminal N1 for nQ voltage present.
IC __
- c. Remove test lead from terminal N1 and set multimeter to measure ohms.
- d. Check for an open condition between rack side slider block terminals 29 and 30.
IC 6.11.7 At Unit 2 2C-75, Independent Overspeed Protection System Q Panel, close all sliders.
IC Page 9 of21 CONTINUOUS USE S
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NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31 1997 TRIP DEVICE UNIT 2 ,
. INITIALS INDEPENDENT VERIFICATION 6.11.8 At Unit 2 2C-75, Independent Overspeed Protection System Panel, check g)) sliders are CLOSED.
Verifier Initials Time Date IC M&TE Id. No. Cal. Date 6.12 Exit administrative LCO for Unit 1.
6.13 Return the overspeed protection controller key switch to the inservice position.
NOTE: QCInspector must witnessperformance ofStep 6.14.
6.14 Have I&C remove the frequency counter and restore the fire barrier '
penetration to normal.
M&TE Id. No. Cal. Date 1
6.15 Frequency counter, and cabling removed. Fire barrier penetration integrity :
is restored.
6.16 QC ;
As directed by the DSS, perform one of the following actions:
l 6.16.1 Ifreturning to the gnd and ORT 4 was conducted while holding reactor at approximately 28% power, then perform Section, 7.0 or )
6.16.2 If returning to the grid and ORT 4 was conducted at reduced reactor power, then perform Section 8.0, or -~ ~
6.16.3 If not returning to the grid, then return to OP-3A, Normal !
Power Operation to Low Power Operation.
6.17 All M&TE Id No.'s used with overspeed testing are recorded on CHAMPS Task Sheet.
Page 10 of 21 CONTINUOUS USE
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 l MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 7 TRIP DEVICE (g] UNIT 2 INITIALS 7.0 SYNCHRONIZING THE GENERATOR AND LOADING THE TURBINE WHILE HOLDING REACTOR POWER AT ~28% WITH CONDENSER STEAM DUMPS.
NOTE: IfSection 7.0 is beingperformed then Step 8.0 is N/A 7.1 Complete applicable section of CL-lC for turbine loading rate.
7.2 Verify lockout relays (back of C02) are reset and control power on.
7.2.1 2TG-01 Turbine Generator lockout 7.2.2 Trans. 2X01 lockout.
7.3 Ensure no protective relay targets showing (back of C02).
7.4 Disconnect Ooeration NOTE: Ifmotor operated disconnects have not been opened, then Step 7.4isN/A 7.4.1 Operator stationed at disconnects to observe proper closure.
7.4.2 Verify the generator output breaker 142 is open locally.
7.4.3 Close the motor-operated disconnects 142B. Verify closure.
7.5 Verify the " turbine trips / generator breaker trip to lockouts" key switch is in operate.
7.6 Set the valve position limiter to ~30%.
7.7 Verify EH controlis in "oper auto."
7.8 Verify the turbine is at 1800 rpm, then stop the turning gear pump and the .
seal oil backup pump and place control switches in " auto."
7.9 Verify service water cut in to'the turbine oil cooler and the controller is set to control oil temperature leaving the bearings between 130-150 F.
- Page 11 of 21 GONTINUOUS USE
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 2 INITIALS 7.10 Verify service water cut in to:
7.10.1 The exciter cooler.
7.10.2 The isolated bus duct cooler.
7.11 Verify all 3 channels ofIOPS are indicating approximately 1800 rpm. (Rod drive room.)
7.12 Notify the system control supervisor that the unit is coming on line.
7.13 With the turbine speed between 1750 and 1800 rpm, close the field breaker.
7.14 Slowly raise generator voltage by using small steps on the base adjuster to obtain approximately 19 Kv at 1800 rpm. Verify all three phases.
7.15 For Automatic Voltage Renulation 7.15.1 Turn the regulator switch to " test." Note that the generator null voltmeter will move to "+" or " ."
7.15.2 Adjust the null voltmeter to zero using the " mag-a-stat" voltage adjuster.
7.15.3 When nulled, turn the voltage regulator switch to "on."
NOTE: The voltage regulator is now in automatic. Voltage at any ,
time and MVARs when synchronized are adjusted by the
" mag-a-stat" voltage adjuster.
NOTE: The base adjuster is used to adjust the output ofthe manual _
voltage regulator as indicated on the null voltmeter to appratimately zero.
7.16 Turn on the synchroscope and adjust " incoming" voltage to match
" running" voltage.
7.17 Verify approximately 20 amps DC excitation current.
l Page 12 of 21 CONTINUOUS USE e
NUCLEAR POWER BUSINESS UNIT ORT 4
. OPERATIONS REFUELING TESTS MAJOR Revision 9
- MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE
{h j UNIT 2 INITIALS i
, 7.18 Adjust turbine speed to cause the rotation of the synchroscope slowly in j the " fast" direction.
-
- CAUTION
- ENSURE THE GENERATOR PICKS UP ~20-30 MWE i LOAD. IF NECESSARY TAKE MANUAL CONTROL
, OF EH GOVERNOR AND INCREASE LOAD. DO NOT !
ALLOW THE GENERATOR TO MOTORIZE AS A GENERATOR TRIP AND LOCKOUT WILL OCCUR IN
, 45 SECONDS AFTER RECEIPT OF " REVERSE POWER" ALARM.
1 7.19 As the synchroscope reaches the 12:00 position, close the generator output breaker.
- 7.20 Verify " LOAD CONTROL" light on.
- 7.21 Verify approximately 20-30 Mwe load on generator and MVARS in the out direction.
,O 7.22 Tum the synchroscope off.
7.23 Notify system control supervisor that the unit is on line. !
! *CAUTIONa FUEL CONDITIONING MAY BE LIMITING AND WILL PREVAIL OVER TURBINE CAPABILITY.
t 7.24 Monitor condenser steam dump operation, to ensure the steam load combination oi turbine and condenser dumps are controlling reactor power and Tm taapproximately the reference value of Step 4.3.
NOTE: Advance valveposition limiter as required to awidgovernor tracking awrs throughout remainder ofpower increase.
7.25 Transfer EH control to " imp in."
l 7.26 Slowly raise turbine load to approximately 15%.
- i 7.27. Verify 2 of 2 " TURBINE POWER P-7" bistable status lights are lit.
7.28 Increase electricalload slowly.
L Page 13 of 21 CONTINUOUS USE i
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR l Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 2 INITIALS 7.29 Ensure generator cold gas temperatures are being maintained at >40 C but
<46*C with a maximum hot gas temperature rise of 64 C.
7.30 When the turbine is at approximately 20% load.
7.30.1 Assuming X02 in service, transfer buses A01 and A02 to X02, minimizing the time the transformers are paralleled.
7.30.2 Align X01 FOA coolers as follows:
- a. Place all three sets of" oil cooling fans with pump" into operation on each McGraw Edison X01 transformer by transferring control switch from " auto" to " manual."
l aCAUTION* SIMULTANEOUS " MANUAL OPERATION" OF FOA COOLERS ON WESTINGHOUSE TRANSFORMERS IS NOT RECOMMENDED SO AS TO AVOID POTENTIAL DAMAGE BY STATIC ELECTRIFICATION.
- b. The Westinghouse transformer 2X01-C phase should be selected to " auto."
7.30.3 Establish the nitrogen purge on each McGraw Edison X01 tank l
gas space (if pucge system installed). l 7.31 Unisolate the crossover steam dump drain bottle.
l l
Unit 2 drain bottle No. 3 l
Open OS-33, OS-5937 outlet isolation.
l Open OS-35, ST-5965 outlet isolation. ~
7.32 Open bypass valves OS-1&2 as soon as crossover pressure on PR-2065 is positive.
7.33 When the unit is >20% power, place the control switches for the TCSD (turbine crossover steam dump) isohstion valves MOV-1&2 in the " auto" position and ensure that the valves have opened. - h 4 Page 14 of 21 CONTINUOUS USE O
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE
( UNIT 2 INITIALS 7.34 Shut bypasses OS-l&2.
7.35 Close the turbine drain valves.
7.36 Slowly increase turbine load until the parameters of Step 4.3 are approximately matched. Then stop increasing turbine load.
7.37 Set the condenser steam dump controller, HC-484 to a pressure of 1005 psig.
7.38 Verify the condenser steam dumps are shut.
. 7.39 Place the steam dump mode selector on " auto."
7.40 Adjust turbine load to bring T,.rwithin 1 F oft.y.
7.41 Transfer the rod control system to " auto."
7.42 Place the steam generator level programmer, LM-463F in rack C-127, in
" auto."
a 7.43 Return to OP-1C step in effect.
8.0 SYNCHRONIZING THE GENERATOR AND LOADING THE TURBINE WHILE INCREASING REACTOR POWER.
NOTE: IfSection 8.0 is beingperformedthen Step 7.0 is N/A.
8.1 Complete applicable section of CL-1C for tu6ine loading.
8.2 Verify the lockout relays (back of CO2) are reset and control power on.
8.2.1 2TG-01 Turbine Generator lockout.
8.2.2 Trans. 2X01 lockout.
8.3 Ensure no protective relay targets showing (back of C02).
l Page 15 of 21 CONTINUOUS USE -
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NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 2 INITIALS 8.4 Disconnect Operation NOTE: If motor operated disconnects have not been opened, then Step 8.4is N/A.
8.4.1 Station an operator at disconnects to observe proper closure.
8.4.2 Verify locally the generator output Breaker 142 is open.
8.4.3 Close the motor-operated disconnect 142B. Verify closure.
8.5 Verify the " turbine trips / generator breaker trip to lockouts" key switch is in operate.
8.6 As required, raise reactor power and dump steam until 2% rated power is reached.
8.7 8.8 Set the value position limiter to -30%.
Verify EH control is in "OPER AUTO."
g 8.9 Verify the turbine is at 1800 rpm, then stop the turning gear pump and the seal oil backup pump and place control switches in " auto."
8.10 Verify service water cut in to the turbine oil cooler and the controller is set to control oil temperature leaving the bearings between 130-150 F.
8.11 Verify service water cut in to:
8.11.1 The exciter cooler.
8.11.2 The isolated bus duct cooler. '
8.12 Verify all 3 channels ofIOPS are indicating approximately 1800 rpm. (Rod drive room)
- O 1
. Page 16 of 21 CONTINUOUS USE
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NUCLEAR POWER BUSINESS UNIT ORT 4 I OPERATIONS REFUELINO TESTS MAJOR l Revision 9 l MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 2
. INITIALS NOTE: Use (ATM 56) as indicatedpower during the initial startupfollowing refueling.
j B.13 Raise reactor power by one of the following methods, whichever is applicable.
8.13.1 Ifnat an initial startup following a refueling outage, raise j reactor power to >10%. l
- 8.13.2 If an initial startup following a refueling outage, raise reactor i power per the direction of the Technical Services engmeer ;
performing RESP 4.3, l l
8.14 Perform the Followinn- '
l 8.14.1 Verify the " POWER ABOVE P-10" light is on and that 4 of 4 "HI POW RANGE P-10" bistable status lights are lit. !
l 8.14.2 Block the " intermediate range reactor trip" and verify the "INTERMED RANGE TRIP BLOCKED" light is lit.
8.14.3 Block the " low power reactor trip" and verify the "LO POWER RANGE TRIP BLOCKED" light is lit. '
8.14.4 Verify the "AT POWER TRIP BLOCKED" permissive light has g cleared.
a 4
8.15 Notify the system control supervisor that the unit is coming on line.
8.16 With the turbine speed between 1750 and 1800 rpm, close the field breaker.
8.17 Slowly raise generator voltage by using small steps on the base adjuster to obtain approximately 19 Ky at 1800 rpm. Verify all three phases.
8.18 For Automatic Voltane Renulation 8.18.1 Turn the regulator switch to " test." Note that the generator null voltmeter will move the "+" or " ."
i Page 17 of 21 CONTINUOUS USE 9 9 0 g
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 2 INITIALS 8.18.2 Adjust the null voltmeter to zero using the " mag-a-stat" voltar,e adjuster.
8.18.3 When nulled, turn the voltage regulator switch to "on."
NOTE: The voltage regulatoris now in automatic. Voltage at any time andMVARS when synchronized are adjusted by the
" mag-a-stat" voltage adjuster.
NOTE: The base adjuster is used to adjust the output of the manual voltage regulator as indicated on the null voltmete~ to appratimately zero.
8,19 Turn on the synchroscope and adjust " incoming" voltage to match l
" running" voltage.
8.20 Verify approximately 20 amps DC excitation current.
8.21 Adjust turbine speed to cause the rotation of the synchroscope slowly in the " fast" direction.
aCAUTIONa ENSURE THE GENERATOR PICKS UP ~20-30 MWE LOAD. IF NECESSARY TAKE MANUAL CONTROL OF EH GOVERNOR AND INCREASE LOAD. DO NOT ALLOW THE GENERATOR TO MOTORIZE AS A GENERATOR TRIP AND LOCKOUT WILL OCCUR IN j 45 SECONDS AFTER RECEIPT OF " REVERSE '
POWER" ALARM 9 8.22 As the synchroscope reaches the 12:00 position, close the generator output breaker. l 8.23 Verify " LOAD CONTROL" light on. ~
8.24 Verify approximately 20-30 Mwe load on generator and MVARS in the out direction.
8.25 Tum the synchroscope off.
8.26 Notify the system control supervisor that the unit is on line. -
Page 18 of21 CONTINUOUS USE 9 9 '
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NUCLEAR POWER BUSINESS UNIT ORT 4 I OPERATIONS REFUELING TESTS MAJOR 1 Revision 9 l MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 l
^
TRIP DEVICE UNIT 2 INITIALS
- CAUTIONa FUEL CONDITIONING MAY BE LIMITING AND WILL PREVAIL OVER TURBINE CAPABILITY.
NOTE: Maintain T,,,in accordance with turbineload(T. Ref).
NOTE: Advance valveposition limiter as required to avoidgovernor tracking errors throughout remainder ofpower increase.
8.27 Transfer EH control to " imp in."
8.28 Transfer steam dump control from " man" (header pressure) to " auto" (Tm), and adjust steam dump controller (HC-484) to a set pressure of 1005 psig.
8.29 Transfer steam generator feed from the bypass valves to the main feed regulating valves in manual. Place main feed regulating valves in " auto" as soon as load permits.
( 8.30 Slowly raise power and stabilize turbine load, reactor power and Tmt a approximately 15%.
8.31 Verify 2 of 2 " TURBINE POWER P-7" bistable status lights are lit.
8.32 Transfer the rod control system to " auto."
8.33 Increase electrical load slowly, ensuring primary systems following properly in automatic. CL-lC details turbine loading times.
8.34 As power is increased, adjust steam generator blowdown heat exchanger *~
condensate outlet temperature according to its return path (HDT or condenser) (not applicable if blowdown path is to the blowdown tank.)
l 8.35 Ensure generator cold gas temperatures are being maintained at <46 C but >40*C with a maximum hot gas temperature rise of 64*C.
Q NJ -
Page 19 of 21 CONTINUOUS USE
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE
, UNIT 2 INITIALS NOTE: For the next step use (AT/0.56) as indicatedpower on the initial startupfor afuelcycle.
-8.36 When the unit is at approximately 20% power:
8.36.1 Assuming X02 in service, transfer buses A01 and A02 to X02, minimizing the time the transformers are paralleled.
8.36.2 Align X01 FOA coolers as follows:
- a. Place all three sets of" oil cooling fans with pump" into operation on each McGraw Edison X01 transformer by transferring control switch from " auto" to " manual."
- CAUTION
- SIMULTANEOUS " MANUAL OPERATION" OF FOA COOLERS ON WESTINGHOUSE TRANSFORMERS IS NOT RECOMMENDED SO AS TO AVOID POTENTIAL DAMAGE BY STATIC ELECTRIFICATION.
- b. The Westinghouse transformer 2X01-C phase should be selected to " auto."
8.36.3 Establish the nitrogen purge on each McGraw Edison X01 tar.k gas space (if purge system installed).
8.37 Unisolate the crossover steam dump drain bottle.
Unit 2, drain bottle No. 3 '
Open OS-33, OS-5937 outlet isolation Open OS-35, ST-5965 outlet isolation ~
8.38 Open bypass valves OS-l&2 as soon as crossover pressure on PR-2065 is positive.
8.39 When the unit is >20% power, place the control switches for the TCSD (turbine crossover steam dump) isolat:on valves MOV-l&2 in the " auto" position and ensure that the valves have opened.
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' NUCLEARPOWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997
- TRIP DEVICE
)(q) UNIT 2 INITIALS l
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- 8.40 Shut bypasses OS-1&2.
).
8.41 Close the turbine drain valves.
NOTE: For the next step use (AT/0.56) as indicatedpower on the initial startupfor afuelcycle.
l NOTE: Bank D should be at least 170 steps withdrawn ofin an initial startup following a refueling.
3-1 8.42 At about 25% power, verify:
8.42.1 That 4 of 4 "LO POW RANGE TRIP" bistable status lights are
- lit.
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- 8.42.2 That 2 of 2 "INTERM RANGE TRIP" bistable status lights are lit.
I 8.43 Return to OP-1C step in effect.
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