ML20058N633
| ML20058N633 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 07/15/1993 |
| From: | Madison H CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| Shared Package | |
| ML20058N620 | List: |
| References | |
| NUDOCS 9310200074 | |
| Download: ML20058N633 (34) | |
Text
.
19FORr46Tiod BIG ROCK POINT NUCLEAR POWER PLANT PROCEDURE APPROVAL AND AUTHORIZATION Procedure No.
VOLUME 3. 50P-14 Rev No.
142 Procedure Title SUBSTATION CURRENT REVISION STATUS Author HNMadison Date 06/21/93 Quality Review Form No. 406-93 APPLICABILITY ISSUE HISTORY Revision No.
140 Date 08/11/92 Quality Review Form No. 817-92 Approved for use Date 9- / 5 ~b Procedure Sponsor / Designate Authorized Period of Use Auaust 14. 1992 throuah Auaust 14. 1994 When applicable:
PROCEDURE IMPLEMENTATION HISTORY Reviewed for System or Component Operability Performed by Completed / Reviewed by Method of Verification Title Title O Functional Test O Physical Inspection Date Time Date Time O Administrative Review MAINTENANCE ORDER NO. (if applicable)
SOP-14/scb 9310200074 931011
[D PDR ADOCK 05000155 O
O PDR b
s Revision $42
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VOLUME 3 OPERATING PROCEDURES - SYSTEM SOP SUBSTATION Page 1 of 3 TABLE OF CONTENTS / EFFECTIVE PAGES BEVISION PAGES 142 1 - 29 1.0 PURPOSE 2.0 TECHNICAL SPECIFICATIONS AND OTHER PLANT REQUIREMENTS 2.1 TECHNICAL SPECIFICATIONS REQUIREMENTS 2.2 PLANT REQUIREMENTS 3.0 PRECAUTION AND LIMITATIONS 4.0 ERERE0VISITES
5.0 REFERENCES
AND ATTACHMENTS
5.1 REFERENCES
5.2 ATTACHMENTS 6.0 PROCEDURE 6.1 SUBSTATION LINEUP 6.2 TO MANUALLY TRANSFER TO HUMBER 7 STATION POWER BANK i
6.3 TO MANUALLY TRANSFER TO NUMBER I STATION POWER BANK 6.4 STATION POWER REGULATOR 6.4.1 To Operate The Station Power Reaulator From The Substation 6.4.2 To Operate The Station Power Reaulator from The Control Room 6.5 TONE-RELAY EQUIPMENT 6.5.1 To Test Tone Relay 6.5.2 To Test Permissive Transfer Trio (PTT) 6.5.3 To Test Direct Transfer Trip (OTT) 6.5.4 Guard FreouenCY 6.6 112 DISCONNECTS 6.6.1 To Open 6.6.2 To Closg l
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VOLUME 3 OPERATING PROCEDURES - SYSTEM.
Ravision 142-50P SUBSTATION
-Page 2 of 3 TABLE OF CONTENTS / EFFECTIVE PAGES REVISION
'PAGES 142 1 - 29 6.7 MAIN TRANSFORMER FANS 6.7.1 To Place One Fan Bank In Operation 6.7.2 To Place Number 1 Fan Bank In ODeration And Number 2 To Auto 6.7.3 To Place Number 2 Fan Bank In Operation And Number 1 To Auto 6.8 13.8kV GROUND CHECK 6.8.1 To check 13.8kV Line 7.0 TAGGING 7.1 116 OIL CIRCUIT BREAKER (OCB) 7.1.1 To Remove 116 0CB~From Service 7.1.2 To Restore 116 0CB To Service 7.2 199 OIL CIRCUIT BREAKER (OCB) 7.2.1 To Byoass 7.2.2 To Remove From Service 7.2.3 To Restore The 199 008 To Service 7.3 2.4 kV STATION POWER VOLTAGE REGULATOR 7.3.1 To Remove From Service 7.3.2 To Restore To Service 7.4 NUMBER 7 STATION POWER BANK 7.4.1 To Remove From Service 7.4.2 To Restore To Service 7.5 NUMBER I STATION POWER BANK 7.5.1 To Remove From Se'rvica 7.5.2 To Restore to Service
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VOLUME 3 OPERATING PROCEDURES - SYSTEM R: vision 142 50P SUBSTATION Page 3 of 3 TABLE OF CONTENTS / EFFECTIVE PAGES REVISION PAGES 142 1 - 29 7.6 MAIN TRANSFORMER BANK NUMBER 1 7.6.1 To Remove From Service 7.6.2 To Restore To Service 7.7 799 FUSES 7.7.1 To Replace 8.0 CHECKLIST i
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page.1 of 29 l
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i 1.0 PURPOSE To provide direction for operation of substation equipment.
2.0 TECHNICAL SPECIFICATIONS AND OTHER PLANT RE0UIREMENTS 2.1 TECHNICAL SPECIFICATIONS R'EQUIREMENTS.
Section 11.3.5.3, Emergency Power Sources 2.2 PLANT REQUIREMENTS The 199 0C8 should not be bypassed, isolated or disconnected ~
a.
while the unit is on the line.
b..
If the Big Rock 199 OCB opens due to a fault on the line: side and potential returns on the 138 kV Line, request permission from Power Control to synchronize and close the 199 OCB, but do not pick up load until authorized by Power Control.
1 3.0 PRECAUTIONS AND LIMITATIONS Rubber gloves, leather protectors and safety glasses are 1
a.
required to do switch stick work in the substation.
b.
A 3 day Limiting Condition of Operation exists if the 138 kV-Line is not available and the reactor is in Power Operation.
c.
If the 199 OCB is tripped by the protection scheme, its control switch must be rotated to the OPEN position before the 199 OCB can be reclosed.
~
d.
The following sequence will prevent an actual trip from I
occurring when placing relays in service or taking relays out.
of service:
1.
The trip cutout knob must be pulled out' prior to pulling i
the CT knob or-POT cutout knob.
2.
The CT or POT cutout knob must be pushed in. prior to the trip cutout knob.
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q e.
The 138 kV and 46' kV Lines should not be paralleled except for.-
the short period of time required to manually transfer power sources.
f.
When testing the direct transfer trip circuits on the tone equipment, all four DTT switches (two here at Big Rock and two at Emmet Substation) must be in the TEST position before any trip signals are sent, or an actual trip may take place.
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When taking the Number 7 Station Power Bank out of service, notify personnel that the new section of the Office Building, Annex and East Office Building will be without power.
h.
Region repair should be notified when the main transformer nitrogen bottle pressure falls to 300 psig.
i.
Do not transfer station power to Number 7 Station Power Bank during power operation unless an engineering evaluation has been completed and electrical system protection personnel have been consulted.
The 46kV Line can provide acceptable voltage levels at station power buses during a design basis accident (DBA) while the 2400V Voltage Regulator is out of service (see 5.1.h).
- j. A second individual should assist the operator whenever switching operations are required in the substation (for safety considerations).
k.
All sections of the S0P will be designated a level of usage for that section. The level of usage designation identifies how the procedure is to be utilized during performance of the procedure.
This designation is to be considered the minimum level of usage - a more restrictive level of usage may be used, if so desired. The level of usage for sections will be designated next to that section's heading in the body of the procedure.
4.0 PREREQUISITES a.
125V de available'for substation OCB control.
5.0 REFERENCES
AND ATTACHMENTS
5.1 REFERENCES
Print WD740, Sheet 1, Big Rock Point Plant Generating and a.
138 kV Substation
-l b.
Print 0740Gl9.001, Schematic Wiring Diagram 138 kV OCB and Line Relays i
Print M740-Gl9, Sheet 2, Schematic Wiring Diagram 14.4 kV OCB c.
and Miscellaneous d.
Print M740-Gl9, Sheet 3, Schematic Wiring Diagram Transformer Differential e.
Print 740-Gl9, Sheet 3, 2.4 kV OCBs 1126 and 7726 Schematic l
Wiring Diagram SOP-14/scb
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revisien 142 SOP SUBSTATION Page 3 of 29 f.
Print 0740G30101, E-101, Single Line Meter and Relay Diagram Volume 1, Administrative Procedure 2.1.2 g.
h.
Letter from LReynolds to JRTilton dated April 16, 1993 (Eng. Analysis EA-ELEC-VOLT-012).
5.2 ATTACHMENTS None.
6.0 PROCEDURE 6.1 SUBSTATION LINEUP (Reference Use)
Check the following for normal substation operation:
a.
1.
199 OCB for the 138 kV Line closed.
2.
136 Air Break Switch to Station Power Transformer Number l' CLOSED.
3.
1126 0CB from Station Power Transformer Number 1 CLOSED.
4.
1124 Load Side Disconnects of the 1126 0C8 CLOSED.
5.
2.4 kV Station Power Regulator in service as follows:
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NOTE: The following selector switches are located'in the north door of the station power regulator.
A.
Local / Remote selector in REN.
B.
Lower / Raise selector in DFF.
C.
Auto / Manual selector in AUTO.
6.
799 Air Break Switch to Station Power Transformer Number 7 i
CLOSED.
7.
7726 0CB from Station Power Transformer Number 7 OPEN.
8.
7724 Load Side Disconnect of the 7726 0CB CLOSED.
9.
Station Power Bank Number 7 in AUTO as follows:
A.
7726 0CB OPEN with red target showing on the control switch.
B.
Automatic-Manual 2.4 kV Transfer Switch 43 in AUTO.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP-14
. SUBSTATION Page 4 of 29 i
i 6.2 TO MANUALLY TRANSFER TO NUMBER 7 STATION POWER BANK (Continuous Use) i
- f*****
- CAUTION: The 138 kV and 46 kV Lines should.not be paralleled except for the short period of time required to manually transfer power sources.
l 1
CAUTION: Do not transfer station power to Number 7 Station
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Power. Bank during power operation unless an l
Li engineering evaluation has been completed and electrical system protection personnel have been 3
l consulted.
Place the 43 Mode Selector (Automatic-Manual 2.4 -kV Transfer a.
Switch) to MANUAL.
b.
Check the 1126-7726 Sel SW light indicates MAN-POS illuminated.
Place the syn switch handle-in-the sychroscope switch for the c.
i 7726 0CB and turn to ON.
d.
Verify the scope meter at ~ 12 0' clock.
Operate the 7726 0C8 Switch to CLOSE.
e.
f.
Turn the sychroscope switch to 0FF and remove the syn switch handle.
l g.
Turn the 1126 OCB Switch to TRIP.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 5 of 29 6.3 TO MANUALLY TRANSFER TO NUMBER 1 STATION POWER BANK (Continuous Use)
- CAUTION: The 138 kV and 46 kV Lines should not be paralleled except for the short period of time required to manually transfer power sources.
Place the syn switch handle in the sychroscope switch for the a.
1126 OCB and turn to ON.
b.
Verify the scope meter at ~ 12 0' clock.
Operate the 1126 0CB Switch to CLOSE.
c.
d.
Turn the sychroscope switch to 0FF and remove the syn switch handle.
e.
Turn the 7726 0CB Switch to TRIP.
f.
Complete the following to place the Number 7 Station Power Bank to automatic transfer mode:
1.
Verify the syn switch handle is not in the sychroscope switch for the 7726 0CB.
2.
Turn the 7726 OCB Switch to CLOSE to bring up the red target.
3.
Place the 43 Mode selector (Automatic-Manual 2.4 kV Transfer Switch) to AUTO. Check the 1126-7726 Sel SW Light indicates MAN-POS extinguished.
6.4 STATION POWER REGULATOR 6.4.1 To Operate The Station Power Reaulator From The Substation (Reference Use)
NOTE: The controls are located in the north door of the station power regulator.
6.4.1.1 To Place In Automatic a.
Place the local / remote switch to LOC.
b.
Place the automatic / manual switch to AUTO.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 50P SUBSTATION Page 6 of 29 6.4.1.2 To Operate In Manual NQIE: Adjustments from the substation must be made with direction from the Control Operator since there is no voltage indication at the regulator.
a.
Establish communications with the Control Room.
b.
Place the local / remote switch to LOC.
c.
Place the automatic / manual switch to MAN.
d.
Operate the raise / lower switch as directed by the Control Room.
6.4.1.3 To Align for Control Room Operation a.
Place the local / remote switch to REM.
b.
Place the automatic / manual switch to AUTO.
Notify the Control Room that they have control of the c.
regulator.
6.4.2 To Operate The Station Power Reaulator From The Control Room (Reference Use) 6.4.2.1 Manual Operation Place the voltage regulator selector to MAN.
a.
b.
The regulator control switch can now be turned to RAISE or LOWER to change the 2.4 kV bus voltage.
6.4.2.2 Automatic Operation Place the voltage regulator selector to AUTO.
a.
6.5 TONE-RELAY EQUIPMENT 6.5.1 To Test Tone Relay (Informal Use)
NOTE: The permissive transfer trip (PTT) circuit is tested daily, while the direct transfer trip (DTT) is tested prior to placing into service when 199 OCB is bypassed.
6.5.2 To Test Permissive Transfer Trio (PTT)
(Informal Use) a.
Turn Emmet PTT switch to TEST position.
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a, VOLUME 3 OPERATING PROCEDURES' SYSTEM Revisien 142 SOP-14 SUBSTATION Page 7 of 29 b.
Verify the two amber test lamps (labeled ON when receiving test trips signal and ON when receiving trip frequency) in the
~i right-hand column illuminate after about 10 seconds.
j Turn the Emmet PTT switch to 0FF momentarily. then turn to c.
NORMAL.
i d.
Verify the two amber lights-(labeled ON when receiving test l
trip signals and ON when receiving trip frequency) in the right hand column extinguish.
Verify the following pens offset on the 138 kV Line e.
Chronograph during the test:
1.
Pen 3, Guard frequency.
2.
Pen 4, PTT Transmit Trip.
t 3.
Pen 7, PTT Receive Trip.
f.
If either Pen 3, 4 or 7 did not offset during the test, notify f
Power Control.
6.5.3 To Test Direct Transfer Trio (OTTl (ContinuousUse)
R0.TI: The DTT test is conducted under the direction.of the Emmet 0
Substation Operator via telephone.
Power Control should be notified prior to testing f
CAUTION: All four DTT Switches (2 at Big Rock Point, 2 at Emmet) must be in TEST before any trip signals are sent, or an actual trip may take place.
Following instructions from Emmet Substation Operator:
a.
Turn Emmet DTT receiver switch to TEST.
b.
Turn Emmet DTT transmitter switch to TEST.
When receiving a trip signal from. Emmet the two l' eft-hand c.
column lamps (0N when receiving trip frequency)-(Ind 86TT operation or test trip signal) will illuminate, and.one may j
extinguish a few seconds later.
-l
- d.. Depress lamp TEST and RESET button to reset remaining lamp.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM
' Revision 142 SOP SUBSTATION Page 8 of 29 e.
On the 138 kV Chronograph, check that Pen 3 and 8 offset and then reset.
f.
To send a test trip signal to Emet, depress the transfer trip button for a few seconds (located right of the Emet DTT transmitter switch).
g.
Place Emmet DTT transmitter switch to the " Normal" position.
h.
Place Emet DTT receiver switch to the NORMAL position.
6.5.4 Guard Freauency (ContinuousUse)
((01E: This section is used as confirmatory action for Volume 3, ALP-1.5, Annunciator Number 39, to determine the cause of the " GUARD FREQUENCY LOSS" alarm and corrective action.
If " Guard Frequency Loss" alarm annunciates and:
a.
I White Light ON then Press Loss Of Verify Amber CAUSE:
Amber Light ON Guard Cutoff &
Light 0FF Momentary Loss Lamp Test Button No further Action j
or White Light 0FF then Place Tone Equip if White Light OFF Amber Light ON Test Toggle down Amber Light ON to LOOP BACK and if not Press Loss of then ~
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Guard cutoff &
j Check Amber Lamp Test Button Notify Power Control Light Bulb A Guard Freg Problem Exists At Big Rock.
if White Light ON then Place Tone Equip.
Amber Light 0FF Test Toggle Up (Telephone Ckt)
I if 1
White Light 0FF then Notify Power Controller A Amber Light ON Problem Exists At Emet Sub Or On the Telephone if White Light ON then Notify Power Controller Amber Light 0FF A Telephone Line (Normal)
Problem Occurred 50P-14/scb
i VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 i
50P SUBSTATION Page 9 of 29 6.6 112 DISCONNECTS NOTE: The 112 Disconnects have 2 blades per phase (a total of 6 blades).
6.6.1 To Open (Reference Use)
WARNING:
Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
Verify the position indicator on top of the 116 0CB is a.
pointing to OPEN.
CAUTION:
If the manual trip device is not pulled, the ll60CB could be closed on the open 112 disconnects.*
b.
Pull the manual trip device on the north side of the 116 0CB until it latches.
c.
Open the 112 Disconnects as follows:
1.
Insert the switch stick in the operating ring.
Stand directly in line with the disconnect and pull sharply to open.
2.
Repeat Step 1 for the remaining disconnect blades.
6.6.2 To Close (Reference Use)
WARNING: Rubber gloves, leather protectors and safety glasses are i
required to do switch stick work in the substation.
Verify the position indicator on top of the 116 00B is a.
pointing to OPEN.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 10 of 29 f
I CAUTION:
If the manual trip device is not pulled, the 1160CB could be closed on the open 112 disconnects.*
- 2*******************************************+*ute b.
Verify the manual trip device on the north side of the 116 0C8 is pulled out and latched.
- CAUTI0d: Disconnects must be closed with a quick, positive motion to latch properly.
Too much force or side thrust can damage the bushing.
Insert the switch stick in the operating ring of the c.
disconnect. Stand directly in line with the disconnect and push the disconnect closed.
d.
Close the remaining 112 Disconnect blades in the same manner.
1101E: The latching mechanism is next to the operating ring.
When all six blades are closed, verify that the latching hook e.
is over the latch pin,.
!!0IE:
If the blade is not fully latched it should be opened f
and reclosed.
f.
Open the north door on the 116 0CB, pull the release pin for the manual trip device knob and reset the manual trip.
6.7 MAIN TRANSFORMER FANS NOTE: Normally one fan bank is in HAND and the other is in AUTO except during plant shutdown during winter months when they are both in AUTO.
6.7.1 To Place One Fan Bank In Operation (Reference Use) a.
Place one fan bank selector to HAND.
b.
Verify the fan bank target dropped for the bank started.
Flip the Signal Reset 3-12 T-handle to clear the Control Room c.
al arm.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 S0P SUBSTATION Page 11 of 29 6.7.2 To Place Number 1 Fan Bank In Operation And Number 2 To Auto (Reference Use)
NOTE: When Number 1 Fan Bank is started, the Control Room will receive a " Main Transformer Misc Alarms" annunciator.
a.
Place Number 1 Fan Bank Selector Switch to HANO.
b.
Place Number 2 Fan Bank Selector Switch to 0FF momentarily, then place to AUTO.
c.
Flip the drop reset T-handle.
d.
Verify the " Fan Ind Bank 2" drop target relatched up.
Flip the Signal Reset 3-12 T-handle to clear the Control Room e.
alarm.
6.7.3 To Place Number 2 Fan Bank in Operation And Number 1 To Auto (Reference Use)
NOTE: When Number 2 Fan Bank is started, the Control Room will receive a " Main Transformer Misc Alarms" annunciator.
a.
Place Number 2 Fan Bank Selector Switch to HAND.
b.
Place Number 1 Fan Bank Selector Switch to 0FF momentarily, then place to AUTO.
c.
Flip the drop reset T-handle.
d.
Verify th,e " Fan Ind Bank I" drop target relatched up.
Flip the Signal Reset 3-12 T-handle to clear the Control Room e.
alarm.
6.8 13.8kV GROUND CHECK 1
6.8.1 To Check 13.8 kV Line (between 112 Disconnects and the Main
!]
Transformer.
a.
Check the 13.8kV phases as follows:
I:
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NOTE:
It is not necessary for the 112 Disconnects to be closed but is recommended.
1.
Obtain the Salisbury Audio / Visual Voltage Detector from the Operation Storage.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revisien 142 SOP SUBSTATION Page 12 of 29 2.
Test detector by setting the voltage switch to the 240V position and hold the detector head close to a 115VAC power cord. The detector will indicate with an audio and visual alarm.
3.
Attach the detector to a substation switch stick.
4.
Set voltage switch to the 15kV position.
WARNING: You will be working in an area with energized lines!
Strict adherence to the Accident Prevention Manual is mandatory! DO NOT come in contact with wire!
5.
Stand directly below the 13.8kV line (the lines that are on the transformer side of the 112 disconnects are the 13.8kV lines).
Raise the detector up to the phase to be checked until the audio / visual alarm sounds (should sound at 10-12" from conductor). Once the alarm sounds, stop the detector movement. DO NOT come in contact with the wire.
NOTE:
If the alarm does not sound, this would indicate the possibility of a ground on the system and further investigation must be performed.
6.
Check all three phases of the 13.8kV line in this manner.
7.
Retest detector as per Step #2 if the alarm failed to respond as expected.
8.
Turn off the detector and return to the OPS Storage Cage.
7.0 TAGGING WARNING: Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
7.1 116 OIL CIRCUIT BREAKER (OCB) 7.1.1 To Remove 116 0CB From Service a.
Check turbine generator shut down, b.
Check the turbine auxiliary oil pump shut down; then open the Auxiliary 011 Pump 480V Breaker 52-2A-25 and tag with red Personal Protective Tag.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 13 of 29 NOTE: Opening Siide Link F5 on 002-3 blocks the 116 0CB trip signal from the turbine stop valve close contacts (CBS) to permit test operating 116 0CB.
c.
If the 116 0CB is to be test operated, open Link F5 on C02-3 in the Control Room, d.
Turn the turbine vacuum trip reset solenoid control switch to RESET on 001-B.
e.
Check 112 Disconnects OPEN and tag with red Personal Protective Tag.
f.
Check Generator Field Breaker 241 OPEN and tag with red Personal Protective Tag.
g.
Check Amplidyne Control Switch 0FF.
h.
Open the Amplidyne MG Set 480V Breaker 52-2A-24 and tag with red Personal Protective Tag.
NOTE: The generator metering potential transformer secondary fuses are located in the small side door of the metering cabinet across from the condenser access.
1.
Remove the generator metering potential transformer secondary fuses (2 each) and tag with red Personal Protective Tag.
7.1.2 To Restore 116 GCB To Service a.
Check the 116 0CB ready for service and:
1.
Tools removed.
2.
Temporary grounds removed.
b.
Remove the red Personal Protective Tags only from the following:
1.
Generator metering potential transformer seconaary fuses.
2.
Amplidyne r.. Set 480V Breaker 52-2A-24, 3.
112 Disconnects.
4.
Turbine Auxiliary 011 Pump 480V Breaker 52-2A-25 5.
Generator Field Breaker 241.
c.
Replace the generator metering potential transformer secondary fuses.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision'142 l
SOP SUBSTATION Page 14 of 29 d.
Close the Turbine Auxiliary 011 Pump 480V Breaker 52-2A-25.
e.
Close the Amplidyne MG Set 480V Breaker 52-2A-24.
f.
Close or check closed Slide Link F5'on C02-3.
5 7.2 199 OIL CIRCUIT BREAKER (OCB)
NOTE: The 199 OCB is the bcundary for authority between Local-Control and Power Control. Tagging orders.for the 199 OCB:
or disconnects for line work will be given by Power i
Control. Tagging for work in the substation comes under Local Control but requires Power Control approval before carrying out the order.
7.2.1 To Evoass Hole: Bypassing the 199 OCB comes under the jurisdiction of Power Control because it affects the transmission line. An area j
station operator must be at Emmet sub to test the DTT and place in service. The 199 OCB can be bypassed for testing.
or to maintain station power from the 138 kV Line.
Working 1
clearance cannot be issued on a breaker that is bypassed unless it is removed from service.
7.2.2 To Remove From Service NOTE: The generator must be out of service or at station load.
If the 199 OCB is to be bypassed while removed from service, the bypass operation must be completed prior to opening the 199 OCB.
Verify one of the following conditions exist:
i a.
1.
199 OCB is bypassed, 2.
Station Power on Number 7 Bank, or 3.
Turbine generator at station load.
b.
Open the 199 OCB.
a c.
Verify the OPEN target on the 199 GCB Control Cabinet is
)
showing.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 50P SUBSTATION Page 15 of 29 d.
Pull the manual trip device knob on the 199 OCB Cabinet and verify it latches.
RQII: This will ensure the 199 OCB cannot be closed while the disconnects are being operated.
WARNING: Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
e.
Open the three Line Side Disconnects 191, using a switch stick and tag with red Personal Protective Tag.
f.
Open the three Transformer Side Disconnects 193, using a switch stick and tag with red Personal Protective Tag.
g.
Place the 199 OCB Bypass Selector Switch to the "0N" position.
7.2.3 To Restore The 199 OCB To Service a.
Check 199 OCB ready for service and:
1.
Tools removed.
2.
Temporary Grounds removed.
b.
Place the 199 OCB Bypass Selector Switch to the "0FF" position.
c.
Remove the red Personal Protective Tags from the following:
1.
Line Side Disconnects 191.
2.
Transformer Side Disconnects 193.
d.
Verify the manual trip device knob is pulled out and latched.
NOTE:
This will ensure the 199 OCB cannot be closed while the i
l disconnects are being operated.
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WARNING:
Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
- CAUTION: Disconnects must be closed with a quick, positive motion to latch properly. Too much force or side thrust can damage the bushing.
Close the 191 Line Side Disconnects as follows:
e.
1.
Insert the switch stick into the operating ring. Stand directly in line with one of the disconnects and push the disconnect closed.
2.
Close the remaining 191 Line Side Disconnects in the same manner.
- CAUTION: Disconnects must be closed with a quick, positive motion to latch properly. Too much force or side
- thrust can damage the bushing.
f.
Close the 193 Transformer Side Disconnects by:
1.
Insert the switch stick into the operating ring. Stand directly in line with one of the disconnects and push the disconnect closed.
2.
Close the remaining 193 Transformer Side Disconnects in the same manner.
g.
Pull the release pin for the manual trip device in the 199 Control Cabinet.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revisien 142 50P SUBSTATION Page 17 of 29 h.
Synchronize and close the 199 OCB as follows:
1.
Insert the Syn switch handle in the synscope switch and turn to ON.
t 2.
Verify the scope meter at ~ 12 0' clock.
3.
Verify the synchronizing lights are OFF.
4.
Turn the 199 OCB Control Switch to CLOSE.
5.
Turn the synscope switch to 0FF and remove the Syn switch handle.
7.3 2.4 kV STATION POWER VOLTAGE REGULATOR 7.3.1 To Remove From Service At Control Room:
a.
Place station power voltage regulator automatic-manual selector switch to MAN.
b.
Operate the station power voltage regulator raise-lower switch until the indicator points to N (neutral) position.
c.
Complete the following at the station power voltage regulator:
NOTE: The controls are located in the north door of the i
station power voltage regulator.
1.
Verify the regulator is on N (neutral).
2.
Place automatic-manual selector switch to 0FF.
3.
Place station power voltage regulator remote-local selector switch to LOC.
4.
Place raise-lower selector switch to 0FF.
5.
Open the auxiliary control breaker.
6.
Open the potential breaker.
i d.
Unlock and close the station power Voltage Regulator Bypass Air-Break Switch 3.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 18 of 29 i
i i
WARNING:
Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation, Open and tag with red Personal Protective Tags the load side e.
disconnects (2 blades per disconnect) as follows:
1.
Insert the switch stick into the operating ring.
Stand directly in line with one of the load side disconnects (2 blades per disconnect) and pull the disconnect open.
l 2.
Open the remaining load side disconnects in the same manner.
f.
Open and tag with red Personal Protative Tags the load-break i
disconnects (1 blade per disconnect) as follows:
1.
Insert the switch stick into the operating ring.
Stand i
directly in line with one of the load-break disconnects t
and pull the disconnect open.
2.
Open the remaining load-break disconnects in the same manner.
7.3.2 To Restore To Service a.
Verify temporary grounds are removed.
l b.
Verify the following at the station power voltage regulator:
NOTE: The controls are located in the north door of the station power voltage regulator.
1.
Auxiliary control breaker OPEN.
2.
Potential control breaker OPEN.
3.
Remote-Local selector switch to LOC.
4.
Raise-Lower selector switch to 0FF.
5.
Automatic-Manual selector switch to 0FF.
c.
Verify the following in the Control Room:
1.
Automatic-Manual selector switch to MAN.
2.
Raise-Lower selector switch to 0FF.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 19 of 29 WARNING: Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
- CAUTION: Disconnects must be closed with a quick, positive motion to latch properly. Too much force or side
- thrust can damage the bushing.
1 I
I d.
Remove red Personal Protective Tags from the load-break disconnects (1 blade per disconnect) and close as follows:
1.
Insert the switch stick into the operating ring.
Stand directly in line with one of the load-break disconnects and push the disconnect closed.
2.
Close the remaining load-break disconnects in the same manner.
e.
Remove red Personal Protective Tags from the load side disconnects (2 blades per disconnect) and close as follows:
1.
Insert the switch stick into the operating ring. Stand directly in line with one of the load side disconnects and push the disconnect closed.
2.
Close the remaining load side disconnects in the same manner.
f.
Open Bypass Air-Break Switch 3 and lock OPEN.
g.
Close auxiliary control breaker.
h.
Close potential control breaker.
i.
Place automatic-manual selector switch to MAN.
l
- j. Operate raise-lower selector switch and verify the tap changer pointer follows.
k.
Place automatic-manual selector switch to AUTO.
j 1.
Place remote-local selector switch to REM (transfers regulator control to Control Room).
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V.0LUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 20 of 29 m.
Perform the following in the Control Room:
1.
Operate the raise-lower selector switch and verify the tap changer pointer follows.
2.
Place the automatic-manual selector switch to AUTO and verify the regulator is functioning properly.
7.4 NUMBER 7 STATION POWER BANK t{0]E: This procedure section may be used for tagging out the Number 7 Station Power Transformer or the 7726 0CB or both.
NOTE: Power will be lost to the new Service Building addition, Document Control, Annex, Classrooms and the East Office Building.
NOTE: The 799 Air Break Switch is the boundary for authority between Local Control and Power Control. Tagging orders for the 799 Air Break Switch for line work will be given by Power Control.
Tagging for work in the substation comes under local Control but requires Power Control approval before carrying out the order.
7.4.1 To Remove From Service a.
Notify personnel of the power outage.
b.
Verify 7726 0CB is openTif not', tran's'fer to Number 1 Station
~
~
~
Power Bank per Section 6.3 of this procedure.
c.
Place the automatic-manual 2.4 kV Transfer Switch 43 to MANUAL.
d.
Turn the 7726 0CB Control Switch to OPEN to bring up a green target.
e.
1E the 7726 0CB is to have electrical tests, THEN perform the following:
NOTE:
The 487 Toggles also cut out the 450 Relays.
1.
Place the 487 Regulator Differential Relay X, Y and Z Phase Toggle Switches down to TEST.
f.
Complete the following to reduce the load on the #7 Bank and minimize the arching when the 799 Air Break is opened.
1.
Open Panel P-101 Main Breaker Number 11 (across from DCC).
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 21 of 29 2.
Open all breakers on Panel DP-1 in the Electrical Equipment Building (south of portable classrooms).
3.
Open the following disconnects on the west side of the Annex (outside):
A.
Annex B.
Training Office Building "A" C.
Training Building "B" D.
Training Building "C" E.
Engineering Building (normally open) g.
Unlock and open the 799 Air-Break Switch and tag with red Personal Protective Tag.
WARNING:
Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
h.
Open and tag with red Personal Protective Tags the 7724 Disconnects (3 blades) as follows:
l.
Insert the switch stick into the operating ring.
Stand directly in line with one of the 7724 Disconnects and pull the disconnect OPEN.
2.
Open the remaining 7724 Disconnects in the same manner,
- i. Open and tag with red Personal Protective Tags the 7799 Disconnects (3 blades) as follows:
1.
Insert the switch stick into the operating ring. Stand j
directly in line with one of the 7799 Disconnects and pull the disconnect open.
2.
Open the remaining 7799 Disconnects in the same manner.
J.
Remove the Number 7 Transformer Bank 2.4 kV bus potential secondary fuse and tag with red Personal Protective Tag (located in the box below the potential light south-east of Number 1 Station Power Transformer).
k.
Pull open the 3 fuses for the Maintenance Building and tag with red Personal Protective Tag.
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Y VOLUME 3 OPERATING PROCEDURES - SYSTEM Revisien 142'
[
50P-14'- SUBSTATION Page 22 of.29 j
l 7.4.2 To Restore To Service a.
Check Number'7 Station Power Bank ready for service and all.
temporary grounds removed.-
fj b.
Remove the red Personal Protective Tags from the -following:
1 1.
799 Air Break Switch
- i i
2.
7724 Disconnects i
t 3.
7799 Disconnects 4.
Number 7 Transformer Bank 2.4 kV bus potential secondary j
fuse 5.
Maintenance Building fuses i
c.
Replace Number 7 Station Power Bank 2.4 kV bus potential fuse, i
d.
Check 7726 OCB OPEN.
e.- Close 799 Air-Break Switch and lock CLOSED.
l h4RNING:
Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
i
- CAUTION: Disconnects must be closed with a quick, positive '
- motion to latch properly. Too much force or side t
thrust can damage the bushing.
f.
Close the 7724 Disconnects as follows:
{
l.
Insert the switch stick into the operating ring. Stand directly in line with one of the 7724 Disconnects and push-l the disconnect closed.
-lf 2.
Close the remaining 7724 Disconnects in the same manner.
i i
SOP-14/scb I
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 23 of 29 i
g.
Close the 7799 Disconnects as follows:
1.
Insert the switch stick into the operating ring.
Stand directly in line with one of the 7799 Disconnects and push the disconnect closed.
2.
Close the remaining 7799 Disconnects in the same manner.
h.
Close the Maintenance Building fuses-(3 fuses).
- i. Close the Main Breaker Number 11 on Panel P-101 (across from DCC).
I
- j. Close all breakers on Panel DP-1 in Electrical Equipment Building (south of Portable Classrooms).
k.
Close the following disconnects on the west side of the Annex (outside):
1.
Annex 2.
Training Office Building "A" 3.
Training Building "B" 4.
Training Building "C" 1.
Place the 487 Regulator Differential Relay X, Y and Z Toggles up to NORMAL if the toggles were placed in TEST position on Step 7.4.1.e.l.
! LOTE:
The next two steps will set Station Power for automatic transfer to the Number 7 Bank.
m.
Turn the 7726 0CB Control Switch to CLOSE to bring up a red target.
n.
Place the Automatic-Manual 2.4 kV Transfer Switch 43 to AUTO.
7.5 NUMBER 1 STATION POWER BANK NOTE: This procedure section may be used for tagging out the Number 1 Station Power Transformer or the 1126 0CB or both.
7.5.1 To Remove From Service a.
Manually transfer station power to Number 7 Bank per Section 6.2 of this procedure.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 24 of 29 b.
Cut out the following station power relays:
1.
One Differential Overcurrent 150T (PJC), by pulling out the red trip knob.
2.
Three Differential' 187 (IJD), as follows:
A.
Pull out the red trip knob then, B.
Pull out the black CT knob.
3.
Three Overcurrent 151T (IAC), by pulling out the red trip knob.
c.
E an electrical test is to be performed on the Number 1 Station Power Transformer, THEN cut out the following relays:
1.
Three Differential 387 (IJD), as follows:
1 A.
Pull out the red trip knob then, B.
Pull out the black CT knob.
2.
One Differential Overcurrent 350T (PJC), by pulling out the red trip knob.
d.
E the 1126' OCB is to be electrical tested, THEN perform the following:
-l NOTE:
The 487 Toggles also cut out the 450 Relay.
1.
Place the 487 Regulator Differential Relay X, Y and Z Toggle Switches down to TEST.
e.
Unlock and open the 136 Air-Break Switch and tag with red Personal Protective Tag.
WARNING:
Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
f.
Open and tag with red Personal Protective Tags the 1124 Disconnects (3 blades) as follows:
1 1.
Insert the switch stick into the operating ring. Stand directly in line with one of the 1124' Disconnects and pull the disconnect open.
2.
Open the remaining 1124 Disconnects in the same manner.
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..e VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142.
SOP SUBSTATION.
Page'25:of 29 i;
1 7.5.2 To Restore to Service a.
Check 1126 0CB ready for service. and:
1.
Tools removed.
2.
Temporary Grounds removed.
t b.
Check the'1126 0CB OPEN.
c.
Remove red Personal Protective Tag from and close the 136' Air.
Break Switch and lock closed.
WARNING: Rubber gloves, leather protectors and safety glasses are -
required to do switch stick work in the substation.
i
- s*******************************************************
j
- CAUTION: Disconnects must be closed with a quick positive motion to latch properly. Too much. force or side *'
thrust can damage the bushing.
[
j d.
Remove red Personal Protective tags from the 1124 Disconnects.
and close as follows:
1 1.
Insert the switch stick into the operating ' ring. Stand.
directly in line with one of the 1124 Disconnects and ~ push-the disconnect closed.
l 2.
Close the remaining 1124 Disconnects in the same manner.
e.
Cut in the following Station Power relays:
1.
Push in the red trip knob'for the differential overcurrent150T(PJC).
2.
Three Differential 187 (IJD) as follows:
A.
Push in the black CT knob then:
B.
Push in the red trip knob.
3.
Push in the three red trip knobs for;the Overcurrent 151T (IAC).
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 26 of 29 f.
Return (cut in) the following relays to service:
1.
Three Differential 387 (IJD) as follows:
A.
Push in the black CT knob then:
B.
Push in the red trip knob.
2.
One Differential Overcurrent 350T (PJC) by pushing in the
^
red trip knob.
NOTE: The 487 Toggles also cut in the 450 Relay.
g.
Place the 487 Regulator Differential Relay X, Y and Z Phase Toggle Switches up to NORMAL.
h.
Manually transfer to the Number 1 Station Power Bank per Section 6.3 of this procedure.
^
7.6 MAIN TRANSFORMER BANK NUMBER 1 7.6.1 To Remove From Service H0Jf: The turbine generator must be out of service to remove the f
main transformer from service.
a.
Manually transfer Station Power to the Number 7 Station Power Bank per Section 6.2 of this procedure.
b.
Verify the 112 Disconnects are open and tag with red Personal Protective Tag.
c.
Verify the 1126 0CB is open.
d.
Unlock and open the 136 Load-Break Switch and tag with red Personal Protective Tag.
e.
Open the 199 000.
f.
Check the 195 Bypass Switch open and tag with red Personal Protective Tag.
g.
Verify the OPEN target on the 199 OC'B control cabinet is showing.
h.
Pull the manual trip device knob on the 199 OCB Cabinet and verify it latches.
NOTE: This will ensure the 199 OCB cannot be closed while the disconnects are being operated.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 27 of 29 WARNING:
Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
- i. Open and tag with red Personal Protective Tags the transformer side disconnects,193 Disconnects (3 blades) as follows:
1.
Insert the switch stick into the operating ring.
Stand directly in line with one of the 193 Disconnects and pull the disconnect open.
2.
Open the remaining 193 Disconnects in the same manner.
- j. Place the 199 OCB Bypass Selector Switch to the "0N" position.
k.
Open the 13.8 kV Metering and Synchronizing Potential Transformer Secondary Knife Switch and tag with red Personal Protective Tag (located east of the Number 7 Station Power Transformer).
7.6.2 To Restore To Service a.
Check the main transformer ready for service with all temporary grounds, tools and other work equipment removed.
b.
Place the 199 OCB Bypass Selector Switch to the "0FF" position.
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VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 S0P SUBSTATION Page 28 of 29 c.
Check the 199 OCB Hanual Trip Device pulled and latched.
WARNING: Rubber gloves, leather protectors and safety glasses are required to do switch stick work in the substation.
- CAUTION:
Disconnects must be closed with a quick, positive motion to latch properly. Too much force or side
- thrust can damage the bushing.
i d.
Remove red Personal Protective Tags from the 193 Transformer Side Disconnects and close as follows:
1.
Insert the switch stick into the operating ring.
Stand directly in line with one of the 193 Disconnects and push the disconnect closed.
2.
Close the remaining 193 Disconnects in the same manner.
e.
Remove red Personal Protective Tag from the 195 Bypass Switch.
f.
Remove red Personal Protective Tag from the 13.8 kV Metering and Synchronizing Potential Transformer Secondary Knife Switch and close the switch.
g.
Remove red Personal Protective Tag from the 112 Disconnects.
h.
Remove red Personal Protective Tag from the 136 Load-Break Switch and close and lock the switch.
i.
Pull the release pin for the 199 OCB Manual Trip Device.
J.
Scope and close the 199 OCB to test Main Transformer Number 1.
k.
Manually transfer Station Power to Number 1 Station Power Bank per Section 6.3 of this procedure.
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6 VOLUME 3 OPERATING PROCEDURES - SYSTEM Revision 142 SOP SUBSTATION Page 29 of 29 7.7 799 FUSES 7.7.1 To Replace NOTE: The 799 Fuses may be replaced and service restored without orders if there is no indication of damage that will prevent energizing or if the damaged equipment is disconnected.
NOTE: The Charlevoix 46 kV Line will remain energized.
Tag out the Number 7 Station Power Bank per Section 7.4 of a.
this procedure,
- b. ' Replace all three fuses.
c.
Restore Number 7 Station Power Bank to service per Section 7.4 of this procedure.
8.0 CHECKLIST a.
None.
b.
Plant Status Board.
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i REFERENCE 3 i
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