ML20138K455
| ML20138K455 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 01/31/1997 |
| From: | WISCONSIN ELECTRIC POWER CO. |
| To: | |
| Shared Package | |
| ML20138K159 | List:
|
| References | |
| ORT-4, NUDOCS 9702180330 | |
| Download: ML20138K455 (21) | |
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REFUELING TESTSU
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I MECHANICAL OVERSPEEDf y / '~ 31[1997f i
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$1.2[ $Wdstinghouse Turbine Manual, Volume I, Tab 23, Page 10, Item 22
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t M 12.0 > REFERENCES ,
w; IIR 96-006, NRC faM Report [ NRC Commitment for Operations procedure !
j(ly '
!PMT/QC reviews jQ ~ - ' '
D4ITIALS
~
+n .a 4 ny oi INITIAL CONDITIONS 1 2
- pL 43.1) The turbine generator must be in operation ~ maintaining 210%' load for at i
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least a ' period of eight hours prior to checking the overspeed of the unit.
a-,
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Ag 3.2 t lHave I&C obtain'a fire barrier penetration permit, install frequency counter
- and verify'as operable.-
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, L 3.3 l LIAC personnel available to defeat and enable % m.y d ~.
protection system of both units when instructed to do so by the duty shiA 3 y" .
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calculated. Muse average ofprevious three trip points from previous ORT m."w W P n -
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]NUCLEARPOWERBUSINESS UNIT '
_ ORTi41 d m (OPERATIONS REFUELING TESTS ' '
MAJOR :i W. '
/ -
Revision 9 -
W MAIN TURBINE MECHANICAL OVERSPEED J January 31,1997- .
- t. < TRIP DEVICES
%. CUNITF ;
- q ,
INITIALS
,m ,
lNOTEi+ ~ Ifthe unit Oil not be returned to service upon completion ofthis test ,
f(e:g., the~ test is being conductedprior to a refueling shutdown), then 4; j$ection 5.0 is theproper section to be used ~
13.51 Perform either Section 4._0 or 5.0 for taking the turbine offline.c Check the Wappropriate section to be used.
.m. ,9- J Section 4.@ taking turbine' generator offline' while maintaining reactor ',
f a y m power with condenser steam dumps' m
.() i
- eg. T Section' 5.O - taking turbine generator offline and reducing reactor power . .
- m .
- y
. NOTE:S llftulbineunloadinglimitationswrecalculatedaspartoframping '
down per OP-3A, then it is not necessay to do them again. o 3.6i e Turbine 6nloading limitations calculated per CL-1C.' '
i
- 3.7J ~ Permission to Perform Test -
f The conditions required by this test are consistent with required plant L conditions including equipment operability. Permission is granted to
/ perform this test.
- DSS ' Time Date l "t
4.0 cTAKING THE TURBINE GENERATOR OFF LINE WHiiR MAINTAINING t REACTOR POWER WITH THE CONDENSER STEAM DUMPS
- 0 '
4,1. Verify reactor po.wer at ~28%. 9 ,
- ~ '
~M 9 k23 (Place the steanigenerator level pvy -LM-463F in rack C-127 in. 4
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f D 4i31 Record the following reference values!
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4.3.l'.t l Turbine 1st stage pressure, PI-485 : psig -
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14.3.h : Turbine EH reference setting.
.j y !4.3 3 " Auctioned Tm, HI Tm ppes or TR-401 *F w
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- Page 2 of21s ..
Ji),w , ly, WW ay, y L CONTINUOUS USE "hw w .: ,' '" '
- ^"
NUCLEAR POWER BUSINESS UNIT ORT 4 ,
- OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997
(
TRIP DEVICE ~ !
UNIT 1
. Date RECORD l DSS FRoCEDuaE vsRIFIED CURRENT AND CHECKED FCR m@0RARY CHANGES IF FEID 3 COPIES REQUIRED. USE PBF.0026: LAW NP 1.24 AND DO b'QI COMPLETE T105 BLOCK ;
BY: DNE:
1.0 ~ 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 I, Tab 23, Page 10, Item 22 and Tab 24, overspeed trip mechanism 2.0 - REFERENCES IR %-006, NRC Inspection Report, NRC Commitment for Operations procedure O 3.0 PMT/QC reviews.
INITIALS l INITIAL CONDITIONS I 3.1 The turbine generator must be in operation maintaining 210% load for at l
least a period of eight hours prior to checking the overspeed of the unit.
3.2 Have I&C obtain a fire barrier penetration permit, install frequency counter and verify as operable.
3.3 IAC personnel available to defeat and enable independent overspeed protection system of both units when instmeted to do so by the duty shift
~
' superintendent. .' l 3.4 98% and 102% of the last recorded ove@ trip point have been -
calculated. (Use average of previous three trip points from previous ORT test.)
a 98 % rpm 102 % rpm 9702t80330 9702tO Page1of21 CONTINUOUS USE 4
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 1 INITIALS NOTE: Ifthe unit will not be returned to service upon completion of this test (eg., the test is being conductedprior to a refueling shatdown), then Section 5.0 is theproper section to be used 3.5 Perform either 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 with condenser steam dumps ()
Section 5.0 - taking turbine generator offline and reducing reactor power
()
f NOTE: If turbine unloading limitations were calculated as part oframping
, down per OP-3A, then it is not necessary to do them again.
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 4.0 TAKING TIIE TURBINE GENERATOR OFF LINE WHILE MAINTAINING REACTOR POWER WITH THE CONDENSER STEAM DUMPS
.i 4.1 Verify reactor power at ~28%.
4.2 Place the steam generator level programmer LM-463F in rack C-127 in manual. ~ ;
4.3 Record the following reference values:
4.3.1 Turbine 1st stage pressure, PI-485 psig y 4.3.2 4.3.3 Turbine EH reference setting.
h Auctioned T v., HI T. , ppes or TR-401 F Page 2 of 21 CONTINUOUS USE
. _ . - _ _ . . _ _ . ~ . . _ _ _ _ . . .__ _. __ . _ _ . _
NUCLEAR POWER BUSINESS UNIT ORT 4 2
. OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997
- C TRIP DEV1CE UNIT 1
] INITIALS 4
4.3.4 T,.r, TR-401 or T,.r PPes F 4.3.5 Percent nuclear power, AVGPWR ppes or NR-41 %
(
4.3.6 ' Steam header pressure, PI-484 psig i )
- 4.4 Verify the steam generator atmospheric steam dump controllers set at
- 1050 psig and are in " AUTO."
, t 4.5 Verify the condenser steam dump mode selector and the steam dump 4
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 iS psig.
\ NOTE: Ifany condenser steam dungp(s) open when the mode selector is placedin manual then gnetg adjust HC-64 segpoint tojust shut the l condensersteam dungp(s).
4.7 Place the condenser steam dump mode selector to manual.
L 4.8 Place the rod control selector switch to manual. .
4.9 If required, transfer the unit auxiliary loads from X-02 to X-04.
i- 4.10 Return to two sets of" oil cooling fans with pumps" on each phase of the X-01 McGraw Edison transformers by transferring the control switch from I
- " manual" to " auto." ~ !, ,
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Page 3 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 1 '
INITIALS 4.11 Secure any nitrogen purge on the X-01 transformer tank gas spaces.
l NOTE:
As the turbine is ramped offline the operator should:
- 1. Maintain T,,, close to the value ofStep 4.3.3 by use of controlrods, dilution or boration. Condensersteam dumps should nyt be adjusted during the load change.
- 2. Monitor condenser steam dump operation. Steam dumps should open to maintain steam headerpressure at the reference value ofStep 4.3.6.
4.12 Begin reducing turbine load in accordance with limitations of CL-lC.
4.13 When turbine load is reduced to <20%, open the turbine drain valves.
4.14 Shut the errsover steam dump MOVs and place their control switches to stop. Verify locally MOVs OS-1 and 05-2 are full shut.
4 4.15 Isolate the crossover steam dump neader drain bottle outlet.
Unit 1, bottle No.1 i
Shut OS-48, OS-5936 outlet isolation Shut OS-50, ST-5961 outlet isolation 4.16 Reduce load to approximately zero MWe and MVar.
1 4.17 If on automatic voltage regulation, zero the null voltmeter. ,
4.18 Start the seal oil backup pump, P-37B and the AC turning gear oil pump . _ _
P-37C.
l 4
O i
Page 4 of 21 CONTINUOUS USE i
NUCLEARPOWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9
, MAIN TURBINE MECHANICAL OVER. SPEED January 31,1997
()
(N TRIP DEVICE UNIT 1 INmALS 4.19 Main Generator Ooerations 4.19.1 Place the " turbine trips / generator breaker trip to lockouts" switch 1-43TG-02/3 in defeat.
v aCAUTIONa IF THE MAIN TURBINE SPEED INCREASES UNCONTROLLABLY WHEN THE MAIN GENERATOR BREAIGR 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 1-43TG-02/3 in operate.
. 4.19.5 Check that the EH turbine control has shifted to " Speed
. ( Control."
4.19.6 Place the voltage regulator in OFF.
4.19.7 Run the base adjustment to the lower limit.
4.20 Continue with Step 6.0 "overspeed trip testing."
l 5.0 TAKING TURBINE GENERATOR OFF LINE AND REDUCING REACTOR {
, POWER 5.1 Decrease load and remove turbine generator from line by completing the i
applicable portions ofOP-3A and CL-1C.
~
5.2 Continue ~with Step 6.0 "overspeed trip testing."
6.0 OVERSPFFn TRIP TEST NOTE: Refer to DCS 3.1.H, Crossover Steam Dump System Operability and
- 10Ps Administrative Limits.
6.1 Enter administrative LCO for defeating Unit 2 IOPs -
Page 5 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 I UNIT 1 TRIP CYCLE 1 2 3 6.2 Have I&C defeat IOPS of both units by opening individual sliders. N/A N/A l 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 overspeed 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 speed not 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. .
6.6.2 Reset the turbine trip lever. .
6.6.3 Depress the turbine trip reset button at C-03.
O Page 6 of 21 CONTINUOUS USE
. 4
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9
' MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 A s. TRIP DEVICE UNIT 1 TRIP CYCLE 1 2 3 6.7 Check the Following:
1 6.7.1 " UNIT TRIP" light off. l i
6.7.2 " SPEED CONTROL" light on. I 6.7.3 "STOP VALVE OPEN" lights on.
6.7.4 " GOVERNOR VALVE CLOSED" {
indicating lights on.
6.7.5 " TURBINE MANUAL" light on. _
aCAUTIONa FROM 1000 TO 1400 RPM, THE RATE
'SHOULD BE 300 RPM / MIN. THE n 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 vrill go out; at this point i
depress the operator auto pushbuttoa, set the acceleration rate at 100 rpm / min., and the setter approximately 1800 rpm.,
then push the go pushbutton. Wait until the go light is out 4
and turbine speed has stabilized.
y 6.9 Retum to Step 6.4. N/A /. '
-.1 INITIALS 1 6.10 Average the trip data from Step 6.5.
i) l
- First -+ Third Average rpm
' If the average trip speed is outside of the acceptable range then contact manager - Maintenance for recommendations.
f^ Accentable Range 103.9% to 105.0%
\ (1870.2 rpm to 1890 rpm) -
1, Page 7 of 21 CONTINUOUS USE 4
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 1 INITIALS NOTE: The remaining steps ofSection 6.0 may beperformedprior to the completion ofStep 6.11 and 6.12.
PMT 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 ng "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 ne voltage present.
- c. Remove test lead from terminal N1 AND set multimeter to measure ohms.
g; 1
- d. Check for an open condition between rack side slider block terminals 29 and 30.
IC 6.11.2 At Valve Channel B, verify ng "B" train trip signals presect 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 3 measure ohms.
y :
~
- d. Check for an open condition between rack side slider block terminals 29 and 30.
IC O
9
. Page 8 of 21 CONTINUOUS USE
NUCI. EAR POWER BUSINESS UNIT ORT 4
. OPERATIONS REFUELING TESTS MAJOR Revision 9 I
MAIN TURBINE MECHANICAL OVERSPEED - January 31,1997 l F
TRIP DEVICE ;
. UNIT 1 -
i INITIALS
, 6.11.3 At Unit 1 IC-75, Independent Overspeed Protection System p
Panel, close d sliders. >
IC INDEPENDENT VERIFICATION !
i~ 6.11.4 At Unit 1 1C-75, Independent Overspeed Protection System l r - Panel,, check d sliders are CLOSED.
Verifier Initials Time Date '
t 6.11.5 At Unit 2 2C-75, Independent Overspeed Protection System !
j Panel, Valve Channel A, verify no "A" train trip signals present
- as follows
- ,
{ a. Connect multimeter to termmals P1 and N1 AND check
[;
proper operation ofvoltmeter.
IC ;
- q b. Remove test lead from tenninal P1 AND check all rack side iQ
^
slider block terminals for no voltage present IC !
i,
- c. Remove test lead from terminal N1 AND set multimeter to
- - measure ohms. L f IC .
j d. Check for an open condition between rack side slider block
, terminals 29 and 30.
1-IC !
- 6.11.6 At Valve Channel B, verify ng "B" train trip signals present as j follows
- ,
i a. Set multimeter to measure volts. - l IC - -
. b. Check ber;;w all rack side slider block terminals and ~
~ ~ ~ ~
terminal N1 for no voltage present.
I 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 e Page 9 of21 CONTINUOUS USE, e
c -w - rc, , -, - - - . _ - _ . . . - - . . - - - - - . -
NUCLEARPOWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 1 INITIALS 6.11.7 At Unit 2 2C-75, Independent Overspeed Protection System Panel, close d sliders.
IC INDEPENDENT VERTFICATION 6.11.8 At Unit 2 2C-75, Independent Overspeed Protection System Panel,, check d sliders are CLOSED.
Verifier Initials Time Date M&TE Id. No. Cal. Date 6.12 Exit administrative LCO for unit 2.
6.13 Return the overspeed protection controller key switch to the inservice position.
l 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 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:
6.16.1 Return to the grid by performing Section 7.0, or
^
6.16.2 a
Return to the grid by performing 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 Id. Numbers M&TE used during overspeed testing are recorded on an applicable CHAMPS Task Sheet.
IC l
1
(
Page 10 of 21
. CONTINUOU5 USE
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NUCLEAR POWERBUSINESS UNIT ORT 4 i MAJOR OPERATIONS REFUELING TESTS Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE v UNIT 1 INITIALS
- 7.0 SYNCHRONIZING THE GENERATOR AND I.OADING THE TURBINE WHILE HOLDING REACTOR POWER AT ~28% WITH CONDENSER STEAM DUMPS.
NOTE: IfSection 7.0 is beingperformed then the steps of 8.0 are N/A.
7.1 Complete applicable section of CL-1C for turbine loading rate.
7.2 Verify lockout relays (back of C-02) are reset and control power on.
7.2.1 ITG-01 Turb generator lockout.
i 7.2.2 Trans. IX-01 lockout.
7.3 Ensure no protective relay targets showing (back of C-02). ;
l 7.4 Disconnect Ooeration '
, QjO NOTE: Ifmotor operated disconnects have not been opened, then the steps of 7.4 are N/A.
7.4.1 Operator stationed at disconnects to observe proper closure.
7.4.2 Verify the generator output breaker 122 is open locally.
7.4.3 Close the motor-operated disconnects 122B. 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. 1 i
Page 11 of 21 CONTfNUOUS USE A . 0 $ 0
NUCLEAR POWER. BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 1 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 Voltane Regulation:
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 andMVARs 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 apprnximately zero.
7.16 Turn on the synchroscope and adjust " incoming" voltage to match
" running" voltage.
7.17 Verify approximately 20 amps DC excitation current.
Page 12 of 21 CONTINUOUS USE
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l NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 l TRIP DEVICE l j UNIT 1 l
INITIALS 7.18 Adjust turbine speed to cause the rotation of the synchroscopa 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 45 SECONDS AFTER RECEIPT OF " REVERSE POWER" ALARM.
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 q out direction.
N.)
7.22 Turn the synchroscope off.
7.23 Notify system control supervisor that the unit is on line.
" CAUTION
- FUEL CONDITIONING MAY BE LIMITING AND WILL
- l. PREVAIL OVER TURBINE CAPABILITY.
l 7.24 Monitor condenser steam dump operation, to ensure the steam load combination of tu6ine and condenser dumps are maintainhig Rx power and Tm taapproximately reference value of Step 4.3. ,
. NOTE: Adunce nainposition limiter as nquired to amidgenrnor tracking erwrs throughout remainder ofpowr increase.
7.25 Transfer EH control to " imp in."
7.26 Slowly raise turbine load to approximately 15%.
7.27 Verify 2 of 2 " TURBINE PdWER P-7" bistable status lights are lit. I 7.28 Increase electricalload slowly. -
. Page 13 of 21 CONTINUOUS USE 6
NUCLEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELTNG TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 1 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 Acoroximately 20% Load 7.30.1 Assuming X-02 in service, transfer buses A-01 and A-02 to X-02, mimmizing the time the transformers are paralleled.
7.30.2 Align X-01 FOA coolers as follows: '
- a. Place all three sets of" oil cooling fans with pump" into operation on each McGraw Edison X-01 trusformer 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, IX01-A phase should be selected to " auto."
7.30.3 Establish the nitrogen purge on each McGraw Edison X-01 tank gas space (ifpurge system installed).
7.31 Unisolate the crossover steam dump drain bottle.
Unit 1, drain bottle No.1 Open 0S-48, OS-5936 outlet isolation Open OS-50, ST-5961 outlet isolation 7.32 Open bypass valves OS-l&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) isolation valves MOV-l&2 in the " auto" '
position and ensure that the valves have opened.
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NUCLEAR POWER DUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR l-Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE
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( UNIT 1 r
INITIALS I
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 prig.
7.38 Verify the condenser steam dumps are shut.
7.39 Place the steam dump mode selector in " AUTO."
7.40 Adjust turbineload to bring T,.rwithin 1 F oft m.
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."
7.43 Return to OP-lC step in effect.
8.0 SYNCHRONIZING THE GENERATOR AND LOADING THE TURBINE WHILE INCREASING REACTOR POWER.
l-l NOTE: IfSecdon 8.0 is beingperfomned then steps ofSeedon 7.0 are N/A. ,
8.1 A Complete applicable section ofCL-1C for turbine loading.
8.2 - Verify the lockout relays (back of C-02) are reset and control power on. .__._
8.2.1 ITG-01 Turb generator lockout.
8.2.2 Trans. IX-01 lockout.
8.3 Ensure no protective relay targets showing (back of C-02).
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NUCLEAR POWER BUSINESS UNIT ORT 4 <
OPERATIONS REFUELING TESTS MAJOR l Revision 9 ;
MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 1 INITIALS 8.4 Disconnect Ooeration NOTE: Ifmotor operated disconnects have not been opened, then the steps of 8.4 are N/A.
8.4.1 Station an operator at disconnects to observe proper closure.
8.4.2 Verify locally the generator output breaker 122 is open.
8.4.3 Close the motor-operated disconnects 122B. 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 Set the valve position limiter to ~30%.
8.8 Verify EH controlis in "oper auto."
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. . _ _ . .
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NUCLEAR POWER BUSINESS UNIT ORT 4
- OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 t
p TRIP DEVICE
_ UNIT 1 INITIALS 8.12 Verify all 3 channels oflOPS are indicating approximately 1800 rpm.
(Rod drive room.)
' NOTE: Use (ATM56) as indicatedpower during the initial startupfollowing refueling.
8.13 Raise reactor power by one of the following methods, whichever is applicable.
-8.13.1 Ifn01 an initial startup following a refueling outage, raise reactor power to >10%.
8.13.2 If an initial startup following a refueling outage, raise reactor I power per the direction of the Technical Services engineer performing RESP 4.3.
8.14 Perform the followinr _
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.
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 cleared. 1
}*
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 Kv at 1800 rpm. Verify all three phases.
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NUCLEAR POWER BUSINESS UNIT ORT 4 l OPERATIONS REFUELING TESTS MAJOR l Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 l TRIP DEVICE UNIT 1 TNITIALS 8.18 For Automatic Voltace Regulation:
8.18.1 Turn the regulator switch to " test." Note that the generator null voltmeter will move to "+" or " ."
8.18.2 Adjust the null voltmeter to zero using the " mag-a-stat" voltage adjuster. ,
8.18.3 When nulled, turn the voltage regulator switch to "on."
NOTE: The voltage regulator is 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 ofthe manual voltage regulator as indicated on the null voltmeter to approximately zero.
8.19 Turn on the synchroscope and adjust " incoming" voltage to match
" running" voltage.
O 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.
1 aCAUTION* 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 ,
45 SECONDS AFFER RECEIPT OF " REVERSE -.
POWER" ALARM.
8.22 As the synchroscope reaches the 12:00 position, close the generator output breaker.
8.23 Verify " LOAD CONTROL"lighton.
8.24 Verify approximately 20-30 Mwe load on generator and MVARS in the -
out direction.
. Page 18 of 21 CON.TINUOUS USE
NUCLEAR POWER BUSINESS UNIT ~ ORT 4
. OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997 TRIP DEVICE UNIT 1 INITIALS 8.25 Turn the synchroscope off.
8.26 Notify system control supervisor that the unit is on line.
I aCAUTIONa FUEL CONDITIONING MAY BE LIMITING AND WILL I
PREVAIL OVER TURBINE CAPABILITY.
NOTE: Maintain T,,,in accordance with turbineload (T,,).
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" (T m
), 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 1 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
. . . .1 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).
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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 1 ]
INITIALS 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. ;
' NOTE: For the next step use (ATM 56) as indicatedpower on the initial startupfor afuelcycle, 8.36 When the Unit is at Anproximately 20% Powen 8.36.1 Assuming X-02 in service, transfer buses A-01 and A-02 to X-02, minimizing the time the transformers are paralleled.
8.36.2 Align X-01 FOA coolers as follows:
- a. Place all three sets of" oil cooling fans with pump" into operation on each McGraw Edison X-01 transformer by transferring control switch from " auto" to " manual."
aCAUTiONa SIMULTANEOUS " MANUAL OPERATION" OF FOA COOLERS ON WESTINGHOUSE TRANSFORMERS IS NOT RECOMMENDED SO AS TO AVOID POTENTIAL DAMAGE BY STATIC ELECTRIFICATION.
tt The Westinghouse transformer, IX01-A phase should be selected to " auto."
8.36.3 Establish the nitrogen purge on each McGraw Edison X-01 tank gas space (ifpurge syvem installed).
8.37 Unisolate the Crossover Steam Dumo Drain Bottle Unit I, drain bottle No.1 - --
Open 05-48, OS-5936 outlet isolation Open OS-50, ST-5961 outlet isolation 8.38 . Open bypass valves OS-l&2 as soon as crossover pressure on PR-2065 is positive. -
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NU(,' LEAR POWER BUSINESS UNIT ORT 4 OPERATIONS REFUELING TESTS MAJOR Revision 9 MAIN TURBINE MECHANICAL OVERSPEED January 31,1997
]v TRIP DEVICE UNIT 1 INITIALS 8.39 When the unit is >20% power, place the control switches for the TCSD ,
(turbine crossover steam dump) isolation valves MOV-l&2 in the " auto" position and ensure that the valves have opened.
8.40 Shut bypasses OS-l&2.
8.41 Close the turbine drain valves.
NOTE: For the next step use (AT/0.56) as indicatedpower on the initial startupfor afuelcycle.
NOTE: Bank D should be at least 170 steps withdrawn ifin an initial startup following a refueling.
8.42 At About 25% Power. Verife 8.42.1 That 4 of 4 "LO POW RANGE TRIP" bistable status lights are lit.
8.42.2 That 2 of 2 "INTERM RANGE TRIP" bistable status lights are lit.
8.43 Return to OP-lC step in effect.
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