ML20199E453
| ML20199E453 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 08/23/1985 |
| From: | FLORIDA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20199E404 | List:
|
| References | |
| FOIA-85-729 9408.2, NUDOCS 8603270226 | |
| Download: ML20199E453 (11) | |
Text
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- i. t ia l FLORIDA POWER AND LIGHT COMPANY TURKEY POINT UNITS 3 AND 4
~ 0FF-NORMAL OPERATING PROCEDURE 9408.2 I AUGUST 23, 1985
- j. 1.0
Title:
3 ENERGIZING 4KV BUSES USING THE CRANKING OIESELS 8US TIE LINES OR STARTUP j TRANSFORMER FROM.THE OPPOSITE UNIT 2.0 Approval and List of Effective Pages:
~
. 2.1 Approval:
} Change Dated 8/23/85 Reviewed by Plant Nuclear Safety Committee: 85-140 1 and Approved by Plant Manager - Nuclear: 8/23/85 1
2.2 List of Effective Pages:
h Date Page Date Page Date h Date -
1 8/23/85 4 8/23/85 7 8/23/85 10 8/23/85 2 8/23/85 5 8/23/85 8 8/23/85 11 8/23/85 3 8/23/85 6 8/23/85 9 8/23/85 :
3.0 Purpose and Discussion:
3.1 Purpose
This procedure provides instructions to be followed when -a loss of nomal ;
power supplies requires an alternate method of feeding the 4KV bus (es) for l the purpose of supplying emergency loads. The breakers required to perform the energizing 'of the 4KV buses discuss herein are locked breakers and j requires authorization of PS-N to be racked in. '
3.2 Discussic : -l l 3.2.1 This procedure can be utilized to energize .and load the A, B and C l 4KV buses and their respective load centers and emergency loads.
l l 3.2.2 This procedure can be utilized to l Unit Startup Transformer (for A Bus) or provide power from the Cranking the (for Diesels Opposite C,
and "A" or "B").
1 3.2.3 This procedure can .be utilized to energize a dead 4KV bus either j because there isn't the ab_ility to sync. check prior to closing the
{ breaker or because bus clearing must be in to close the breaker.
3.2.4 The Cranking Diesel tie line and breakers are rated at no more than SMVA.- ,Qo not allow Cranking Diesel Ammeter indication exceed a total
- of 630 amps.
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s 8/23/85 3 0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 2 ENERGIZING 4KV BUSES USING THE CRANKING DIESELS BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT ,
l 3l 3.2.5 Interlocks that affect the closure of the Cranking diesel Incoming )
': Breaker at the l*C 4KVl Bus 3AC03 (4AC03): '
4W26466 must be closed.
.i AND
>f
- . ! 3AC01 (4AC01) must be open.
, AND 3AC16 (4AC16) must be open. ,
- j AND il l'
, 3C(4C) Bus Differential Relay must not be tripped.
lI AND Control Switch to CLOSE. t
- i ,
3.2.6 Interlocks that affect the closure of Cranking Diesel tie breaker at the Cranking Diesel Bus 4W26466.
Must not have a Cranking Diesel Bus Lockout.
AND
- Cranking Diesel Incoming Breaker at the 3C Bus - 3AC03 must be
- lRackedInlandOpen.
AND I i
i Cranking Diesel Incoming Breaker at the 4C Bus - 4AC03 must be lRackedInlandOpen.
- AND
.j Control Switch to CLOSE. l
.: l l 3.2.7 Interlocks that affect the closure of Load Center 3E(4E) Feeder Breaker 3AC04(4AC11).
j 1. None
!! 3.2.8 Interlocks that affect the closure of load Centers 3F and 3G (4F and 4G) Feeder Breaker 3AC04(4AC04).
]l
- I 1. None I!
4.0 Symptoms
4.1 All supply breakers to the affected 4KV Bus are OPEN 4.2 No voltage indication on the affected 4KV bus.
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j 8/23/85 7 0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 3 J ENERGIZING 4KV. BUSES USING THE CRANKING DIESELS
- t. BUS TIE LINES GR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT
5.0 Instructions
5.1 Irmoediate Automatic Actions:
5.1.1 None .
5.2 Immediate Operator Actions:
5.2.1 Stabilize the unit using appropriate Off-Nonnal Operating Procedures.
, 5.2.2 l_I_, an SI signal exists or 1,f, an. SI signal is actuated during this procedure, it ghould be reset to pennit manual loading ' of equipment i on the 4KV bus.i
- 5.2.3 Place following equipment switches in PULL-TO-LOCK or 0FF position:
- 1. . High-head SI_ pumps j 2. RHR pumps j
c
- 3. Containment Spray Pumps !
1{ 4. CCW pumps J'
4
- 5. Emergency Containment Filter and Cooler Fans
- 6. Intale Cooling Water Pumps 5.3 Subseauent Operstor Actions:
II 5.3.1 lPerfonn the following to energize th'e *C 4KV bus utilizing the d- cranking diesel:
. 1. On the *C 4KV Bus, UNLOCK and RACK IN 3AC03 and 4AC03.
NOTE: Low voltage does not trip the load center feeder breakers l]. and therefore.have a high, probability of being CLOSED and i' will need to-be OPENED.
. 2. On the *C 4KV Bus to be energized, verify by visual local check that all breakers are OPEN.
CAUTION: The Cranking Diesel Generator should not be operated S unloaded greater than 15 minutes. Operation at s a periods longer than 15 minutes could result in
] turbochargerfire.l
- 3. Notify Unit 1 and 2 Control Room to perform the following:
$ (1) Install control power fuses (4), remove tag, UNLOCK and RACK u IN 4W26466.
[
(2) Start at least two cranking diesels n close their associated output breakers l,gn, dead bus ,1Qr$,l a
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-8/23/85 1 0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 4 ENERGIZING 4KV BUSES USING THE CRANKING DIESELS a
.} BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT (3) Close 4W26466 and notify the Plant Supervisor-Nuclear . that 4W26466 is closed.
- 4. On the *C 4KV bus to be energized (from the Control Room), CLOSE
- AC03. .
- 5. Verify *C Bus voltage to be approximately 4KV.
- 6. If necessary to energize the remaining *C .4KV bus, perform- the 3 following for the bus to be energized:
j NOTE: Low voltage does not trip the load center feeder breakers and therefore have a high probability of being CLOSED and -
i will need to be OPENED.
', (1) Verify by visual local inspection that all breakers are OPEN.
(2) Close *ACO3 (from the Control Room) 1 (3) Verify *C 4KV bus voltage is approximately 4KY.
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CAUTION: If Auxiliary Feedwster is not available, the Standby Steam Generator Feedwater System shall be utilized to supply feedwater in accordance with Operation Procedure 7201.1, Standby Steam Generator Feedwater
- System - Operating Instructions.
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- 7. If the Auxiliary Feedwater System is unavailable and Standby Steam Generator Feedwater System Operation is required, CLOSE the i Standby Steam Generator Feedwater Pump breaker for the.*C 4KV bus
! being loaded:
(1) 3AC06 - SSGFP A f (2) 4AC10 - SSGFP B l CAUTION: The Cranking Diesel tie line and breakers are rated
! at no more than 5 MVA. Do not exceed 630 Amps Total j on the Cranking Diesel ammeters.
I
- 8. To load either *C 4KV bus perfom step 5.3.2.
E.
l To energize *A or *8 4KV Bus from *C 4KV Bus, perform step 5.3.3. Do not perTorm both steps 5.3.2 and 5.3.3.
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f 8/23/85
, OFF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 5 ENERGIZING 4KV BUSES USING THE CRANKING DIESELS-BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT 5.3.2 To load either *C 4KV Bus:
- 1. If necessary to energize *E load center, perform-the following:
[ (1) CLOSE 3AC04 for 3C bus E 4AC11 for 4q, bus - supply to *E load center. ,
p (2) START n,!gglgl, equipment fed from the *E load center, using h care to assure _T_oji_al amperage on Cranking Diesel ammeters
! does not exceed 630 amps. '
1
'- 2. If necessary to energize *F and *G load centers, perform the j ,
following: ,
(1) CLOSE 3AC11 for 3C bus E 4AC04 for 4C bus - supply to *F and j *G load centers.
(2) START needed equpment fed from the *F load center, using care to assure "otal ' amperage on Cranking Diesel anneters does not exceed 630 amps.
' t j (3) START needed equipment fed from the *G l'o ad center, using care to assure Total am ammeters i does not exceed 6TfTmps.perage on - Cranking Diesel l 3. Repeat steps 5.3.2.1 and 5.3.2.2 to load the other *C 4KV bus if t
desired.
! CAUTION: Verify F Load Center (s) tie breaker 41408-is opened i after closing 3AC04 or 4AC11.
1 5.3.3 To energize A E B 4KV Bus from C 4KV bus:
1l CAUTION: The *C 4KV bus should be unloaded, 'unless a Standby Steam '
l Generator Feedpump(s) is required due to a ' loss of
- Auxiliary Feedwater, to ensure amperage requirements are i i not exceeded on the Cranking Olesel tie line and breakers '
i when the *A or *B 4KV bus is energized. i j 1. Ensure that the *A or *8 4KV bus to be energized has a CCW pump
,g!d, an. Intake Cooling Water Pump available.
, 2. Verify by visual local check that all breakers on the A g 8 4KV bus to be energized, are OPEN.
CAUTION: 00 NOT energize both A and 8 4KV Buses on a unit with the C 4KV Bus tie.
- 3. On the associated unit, unlock *AC13.
- 4. Rack in associated *AC13. l
- 5. Close the associated *AC13. l 1
8/23/85 9 0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 6 ENERGIZING 4KV SUSES USING THE CRANKING DIESELS BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT
- 6. To energize the associated A 4KV Bus, perform the following: ,
. UNLOCK *AA09.
RACK IN *AA09.
CLOSE *AA09.
- 4) VERIFY A 4KV Bus Voltage to be,approximately 4160 volts.
- 7. To energize the associated B 4KV Bus, perform the filowing:
- 1) UNLOCK *AB22.
- 2) RACK IN *AB22. l
- 3) CLOSE *AB22. .
- 4) VERIFY B 4KV Bus Voltage to be approximately 4160 volts. '
- 8. To load A 4KV Bus, perform the following:
1 (1) If plant conditions require, energize a CCW pump and Intake Cooling Water Pump on the A 4KV bus energized:
i j 3A 4KV Bus t
3AA12 - 3A CCW Punp ,
j 3AA17 - 3C CCW Pump 3AA19 - 3A Intake Cooling Water Pump 4A 4KV Bus ;
4AA12 - 4A CCW Pump l 4AA17 - 4C CCW Pump 4AA19 - 4A Intake Cooling Water Pump (2) CLOSE needed 480 Volt Load Center breakers as follows:
- A Bus 4KV Bus
- AA08 -
Feed to A 480 Volt Load Center
- AA14 -
Feed to C 480 Volt Load Center (3) START needed Emergency Equipment from *A or *C 480V load centers, using care to assure Total amperage does not exceed 630 amps.
(4) If plant conditions require, energize a charging pump on the $
load center energized:
3A Charging Pump - 30105 3A - 480 V Load Center 3C Charging Pump - 30308 3C - 480 V Load Center or 4A Charging Pump "T0105 4A - 480 V Load Center 4C Charging Pump - 40308 4C - 480 V Load Center i
- 9. To load *B 4KV bus, perfonn the following:
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.8/23/85
-, OFF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 7 ENERGIZING 4KV BUSES USING THE CRANKING DIESELS
, BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT 1
.(1) 1f_
Coo ling Water Pump on the B 4KV bus er.ergized: plant conditions t 3B 4KV Bus 3AB17 - 3B Intake Cooling Water Pump 3AB19 - 3C Intake Cooling Water Pump 7 48 4KV Bus J 4AB13 - 48 CCW Pump 4AB17 - 4B Intake Cooling Water Pump '
~
4AB19 - 4C Intake Cooling Water Pump i
9 (2) CLOSE needed 480V load center breakers as follows:
1 J *B 4KV Bus
- AB09 -
Feed to B 480 Volt Load Center
- AB14 -
Feed to D 480 Volt Load Center t
, (3) START needed EMERGENCY EQUIPMENT from *B 0R *0 load centers. Usina care to assure TOTAL amperage does not exceed
- 630 amps.
(4) If plant conditions require, energize' a charging pump on the j load center energized:
l, 3B Charging Pump - 30203 38 - 480 V Load Center or l 48 Charging Pump - 40308 48 - 480 V Load Center
- 10. If total amperage limits allow, START needed Emergency Equipment 3 Tr~om *A or *B 4KV bus. l ft 5.4 Using the OPPOSITE Startup Transformer to energize the ASSOCIATED Unit A 4KV Bus (B 4KV Bus cannot be enregized from A 4KV Bus):
) 5.4.1 Verify by visual inspection all breakers on the A 4KV Bus to be energized are OPEN or RACKED OUT.
5.4.2 On the A 4KV Bus to be energized, unlock *AA22.
5.4.3 Rack in *AA22. !
5.4.4 Verify potential on opposite units startup transformer (white lights j u above frequency recorder).
i 5.4.5 Close in *AA22. ,
5.4.6 Verify A 4KV Bus Voltage to be approximately 4160 Volts.
(
===-=--==-_-===1=- - === = =:_ = = = _ -___ _ ___
t 8/23/85 i s 0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 8 j ENERGIZING 4KV BUSES USING THE CRANXING DIESELS j BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT i 5.4.7 To load the A 4KV bus perform the following:
I y 1. CLOSE the needed Load Center feeder breakers.
I; (1) Feed to A Load Center *AA08.
(2) To feed l> Load Center, use the breaker as follows:
I 1. OPEN *0210, then i 2. CLOSE *0110.
- 3. Re-energize required loads.
j (3) Feed to C Lead Center *AA14.
(4) To feed D Load Center, use the tie breaker as follows:
- 1. OPEN 20410, then
- 2. CLOSE 1310. .
- 3. Re-energize required loads.
(5) Close in needed Load Center breakers requi red to START EliERGENCY LOADS.
(6) START required 480V EMERGENCY loads. l (7) Start 4KV EMERGENCY Pumps as ' required by plant conditions.
. CAUTION: 00 NOT exceed 600 Amps total load on the A 4KV Bus.
NOTE: To return the' system to nonnal, the bus (es) energized
- i by this procedure MJST be DEAD prior to being
! restored by its nonnal power supply.
l 5.5 To de-energi7e A 4KV bus (powered from opposite unit startup transformer or j bustie):
! 5.5.1 Energize the B 4KV Bus .by a nonnel feed breaker (*AB05 or Unit 3 1 3AB20/ Unit 4 4AB21) by using *-0P-005, 4160 Volt Buses A and B.
& 5.5.2 Transfer loads by starting needed pumps on B 4KV bus and stopping all
! pumps on A 4KV Bus.
1 5.5.3 Transfa- '.oad Centers by:
l
- 1. f tieu to "C" Load Center, transfer D LC by:
- Verify *0410 OPEN.
CLOSE *AB14.
OPEN *0310.
CLOSE *0410.
Re-energize required loads.
- 2. If "C" Load Center is needed:
OPEN *0302.
CLOSE *0310.
j Re-energize required loads.
4
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8/23/85 0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 9 ENERGIZING'4KV BUSES USING THE CRANKING DIESELS BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT l
- 3. If tied to A Load Center, transfer B Load Center by:
- 1) Verify *0210 OPEN.
f; CLOSE *AB09.
p E* 5.
Re-energize required loads.
- 4. If "A" Load Center is needed:
(1) OPEN *0102.
(2) CLOSE *0110.
(3) Re-energize required loads.
- 5. After Load Centers are transferred:
(1) OPEN *AA08.
(2) OPEN *AA14.
5.5.4 Verify by visual inspection all breakers are OPEN or RACKED OUT except for *AA22 or *AA09, then: t j 1. OPEN *AA22 or *AA09.
h 2. RACK OUT *AA22 or *AA09, i -
i 3. LOCK breaker mechanism to prevent RACK IN of breaker on *AA22 or I
- AA09.
- I 4. A 4KV Bus may be energized using *-0P-005, 4160 Volt Buses A and i B.
s 5.6 To de-energize B 4KV Bus (powered from bus tie):
J 5.6.1 Energize the A 4KV Bus by a nonnal feed breaker (*AA05 or *AA20) by
- using *-0P-005, 4160 Volt Buses A and B.
A 5.6 .2 Transfer loads by starting needed pumps on the A 4KV Bus and stopping 0 all pumps on B 4KV Bus.
5.6.3 Transfer Load Centers to the A 4KV Bus as required.
~
(1) Verify *0302 is OPEN.
(2) OPEN *0310.
CLOSE *AA14.
CLOSE *0302.
Re-energize required loads.
- 2. If "D" LC is needed:
' OPEN *0410.
CLOSE *0310.
Re-energize required loads.
. - . . . , . _ _ . . . . _ . . . _ _ . _ . . ~ . _ . . . . . . . . . . . . . . . , . _ . . . . . , , . . . , . . . . _ _ ..... . . _ . . . . . . _ . . . . .
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t 8/23/85
.b 0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 10 1
ENERGIZING 4KV BUSES USING THE CRANKING DIESELS
] BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT
.j 3. If tied to "B" LC, transfer "A" LC by:
1
. (1) Verify OPEN *0102.
(2) OPEN *0110.
e '(3) CLOSE *AA08.
(4) CLOSE *0102.
). (5) Re-energize required loads.
- 4. If "B" LC is needed:
il 3 (1) OPEN *0210.
j (2) CLOSE *0110.
d9 (3) Re-energize required loads. -
i( 5.6.4 Verify by visual inspection all breakers are OPEN or RACKED OUT j
except for *AB22.
3 1. OPEN *AB22.
'i 2. RACK OUT *AB22.
1 3. LOCK breaker mechanism to prevent RACK IN of breaker *AB22.
l 4. B 4KV Bus may be energized using *-0P-005, 4160 Volt Buses Atand
,j B.
j 5.7 To de-energize C 4KV Bus (powered by Cranking Diesels):
- 5.7.1 If used to power A or B 4KV Bus, perform applicable step 5.5 or 5.6
{ before connencing thTs step.
. 5.7.2 If *AC13 is not opened, racked out and locked, perform the following:
- 1. OPEN *AC13.
- 2. RACK OUT *AC13.
- 3. LOCK breaker *AC13 to prevent RACK IN.
i
- 5.7.3 Check *AC04 to be open; if not, OPEN *AC04.
g 5.7.4 Check *AC11 to be open; if not, OPEN *AC11.
5.7.5 OPEN *ACO3.
1 5.7.6 lAfter,both4AC03and3AC03havebeenopened:
N' 1. RACKOUT3AC03and4AC03l.
- )
31 2. LOCK breaker 3AC03 and 14AC03l to prevent RACK IN.
3 jj 3. "C" 4KV Bus may be energized using *-0P-005.1, 4160 Volt Bus "C"
- i[ 6.0
References:
6.1 Emergency Operating Procedure 20007 - Loss of all AC Power.
y 6.2 Operating Procedures:
s
'l; ' 6.2.1 *-OP-005, 4160 Volt Buses A and B.
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8/23/85 d 0FF-NORMAL OPERATING PROCEDURE 9408.2. PAGE 11 ENERGIZING 4KV BUSES USING THE CRANKING DIESELS BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT 6.2.2 *-0P-005.1, 4160 Volt Bus C.
6.2.3 OP-7201.1. Standby . Steam ' Generator Feedwater System -
Operating
-'; :,nstructions!
1 7.9 Records Required:
7.1 Entry into plant logs of evolutions performed in this procedure.
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