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
1 4
- i. t ia l
FLORIDA POWER AND LIGHT COMPANY TURKEY POINT UNITS 3 AND 4 I
~ 0FF-NORMAL OPERATING PROCEDURE 9408.2 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) provide power from the Opposite or the Cranking Diesels (for 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.
8603270226 860106 PDR FOIA WEISS85-729 PDR DM.
i m
u.
m.--
e.
m.
m
l
~
?
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 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.
l AND I
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 Cranking Diesel Incoming Breaker at the 4C Bus - 4AC03 must be lRackedInlandOpen.
AND
.j Control Switch to CLOSE.
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
]l 4G) Feeder Breaker 3AC04(4AC04).
- 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.
p i
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 2.
RHR pumps jj 3.
Containment Spray Pumps c
1{
4.
CCW pumps J'
5.
Emergency Containment Filter and Cooler Fans 4
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.
l].
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.
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) close their associated output breakers l,gn, dead bus,1Qr$,l a Start at least two cranking diesels n
=
i
<v-me w.
e
,qy
,,44
r
-8/23/85 1
0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 4 ENERGIZING 4KV BUSES USING THE CRANKING DIESELS
.}
BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT a
(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 will need to be OPENED.
i (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.
t l
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.
l 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.
1 l
j i
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 following:
j (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' ad center, using o
care to assure Total am ammeters does not exceed 6TfTmps.perage on - Cranking Diesel i
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 after closing 3AC04 or 4AC11.
i 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.
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.
5.
Close the associated *AC13.
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 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:
I.
. I *
.. I.
[
1.*.
T I
r
.a
.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_ ling Water Pump on the B 4KV bus er.ergized: plant conditions Coo 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 Feed to B 480 Volt Load Center
- AB09
- 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 Tr~om *A or *B 4KV bus.
3 f
5.4 Using the OPPOSITE Startup Transformer to energize the ASSOCIATED Unit A 4KV t
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 above frequency recorder).
j u
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
0FF-NORMAL OPERATING PROCEDURE 9408.2, PAGE 8 sj ENERGIZING 4KV BUSES USING THE CRANXING DIESELS BUS TIE LINES OR STARTUP TRANSFORMER FROM THE OPPOSITE UNIT j
i 5.4.7 To load the A 4KV bus perform the following:
I 1.
CLOSE the needed Load Center feeder breakers.
y I
(1)
Feed to A Load Center *AA08.
(2) To feed l> Load Center, use the breaker as follows:
I 1.
OPEN *0210, then 2.
CLOSE *0110.
i 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.
(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 l
5.5.3 Transfa- '.oad Centers by:
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
(
s, n r.
....s..w.-
..n.
_____y______
.m
r
.I t
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.
If tied to "D" LC, transfer "C" LC by:
(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.
_... _ _. _.. ~. _...........
t 1
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.
d (3) Re-energize required loads.
9 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.
5.7.4 Check *AC11 to be open; if not, OPEN *AC11.
g 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.
?
8/23/85 0FF-NORMAL OPERATING PROCEDURE 9408.2. PAGE 11 d
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.
D i
'.?
t
'l
,-j me
.k i
.I
.c
.--..,7~.
_-....~_.....~s._..,