ML17309A517
| ML17309A517 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 05/05/1993 |
| From: | Mecredy R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Andrea Johnson NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17263A255 | List: |
| References | |
| NUDOCS 9305140007 | |
| Download: ML17309A517 (27) | |
Text
ACCEI ERAT DOCUMENT DIST UTION SYSTEM REGULAT INFORMATION DISTRIBUTION YSTEM (RIDS)
ACCESSION NBR:9305140007 DOC".DATE: 93/05/05 NOTARIZED: NO DOCKET FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G
05000244 AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.
Rochester Gas
& Electric Corp.
RECIP.NAME RECIPIENT AFFILIATION
~
~
5 iP~~+
JOHNSON,A.
Project Directorate I-3 R
SUBJECT:
Forwards EOPs,including Rev 11 to AP-TURB.2,Rev 12 to I
AP-CR.1,Rev 5 to AP-CW.l,Rev 10 to AP-CCW.2,Rev 9 to AP-FW.l,Rev 5 to AP-RCC.2,Rev 0 to AP-RCC.3,Rev 6 to D
AP-RCS.3,Rev 1 to AP-RCS.4 a Rev 6 to ES-0.2.
DISTRIBUTION CODE:
A045D COPIES RECEIVED:LTR J ENCL Q SIZE: 2 + ~4 S
TITLE: OR Submittal:
- Plans, Implement'g Procedures C
F
/
NOTES:License Exp date in accordance with 10CFR2',2.109(9/19/72).
05000244 A
RECIPIENT
-ID CODE/NAME PD1-3 PD COPIES LTTR ENCL 1
1 RECIPIENT ID CODE/NAME JOHNSONFA COPIES LTTR ENCL 1
1 D
D INTERNAL: AEOD/DOA/IRB 1
1 NUDOCS-ABSTRACT 1
1 EXTERNAL: NRC PDR 1
1
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NRR/J3R
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REG F
01 NSIC 1
1 1
1 1
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D NOTE TO,ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTBI CONTACT THB DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAMEFROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEEDt D
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 8
ENCL 8
uerzsrr zz(uisim IIIII I ur)ere IZg ieiZI ROCHESTER GAS AND ELECTRIC CORPORATION o
ROBERT G MECREDY Vice President Clnna Nuclear Production
~ ta ~ oarJi rree 89 EAST AVENUE, ROCHESTER N. Y. 1464S.0001 TELEPHONE AstEAcooETtB 546 2700 May 5, 1993 U.S. Nuclear Regulatory Commission Document Control Desk Attn:
Mr. Allen Johnson Project Directorate I-3 Washington, D.C. 20555
Subject:
Emergency Operating Procedures R. E. Ginna Nuclear Power Plant Docket No. 50-244 Gentlemen:
As requested, enclosed are Ginna Station Emergency Operating Procedures.
Very truly yours, Robert C. Mecre y Enclosures c:
Mr. Lee Bettenhausen, USNRC, Region 1
Resident Inspector, Ginna Station emergency. pro p~Z
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AP-TURB.2 AP-CR.1 AP-CW. 1 AP-CCW.2 AP-FW.1 AP-RCC.2 AP-RCC.3 AP-RCS.3 AP-RCS.4 ES.02 ES-1.2 ES-3.1 ES-3.2 ES-3.3 Turbine Load Rejection Control Room Inaccessibility Loss of A CIRC Water Pump Loss of CCW During Power Operation Partial or Complete Loss of Main Feedwater RCC/RPI Malfunction Dropped Rod Recovery High Reactor Coolant Activity Shutdown LOCA Natural Circulation Cooldown Post LOCA Cooldown and Depressurization Post-SGTR Cooldown Using Backfill Post-SGTR Cooldown Using Blowdown Post-SGTR Cooldown Using Steam Dump
EOP:
AP-TURB.2 TITLE:
AUTOMATIC TURBINE RUNBACK REV'0 P
E 1 of 12 ROCHESTER GAS AND ELECTRIC CORPORAT ON GINNA STATION CONTROLLED COPY NUMBER TECHNICAL REVIEW PORC EVIEW DATE PLAN S
ERINTENDENT FE TIV ATE CATEGORY 1.0 REVIEWED BY:
'i s ~
V
EOP:
AP-TURB.2 AUTOMATIC TURBINE RUNBACK REV:
10 PAGE 2 of 12 A.
PURPOSE This procedure provides the steps necessary to control the plant during an automatic turbine runback or unexplained load rejection.
B.
ENTRY CONDITIONS/SYMPTOMS SYMPTOMS The symptoms of AUTOMATIC TURBINE RUNBACK are; a.
Annunciator E-28, POWER RANGE ROD DROP ROD STOP
-54/5 SEC, lit, or b.
Annunciator C-14, ROD BOTTOM ROD STOP, lit, or c.
MRPI Indicates control rod(s) on bottom, or d.
Annunciator F-30, OPaT TURBINE RUNBACK, lit, or e.
Annunciator F-31, OTaT TURBINE RUNBACK, lit, or f.
Unexplained turbine load rejection.'
EOP:
AP-TURB.2 TITLE:
AUTOMATIC TURBINE RUNBACK REV 10 PAGE 3 of '12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION IF, AT ANY TIME DURING THIS PROCEDlJRE, A REACTOR TRIP OR SI OCCURS, E-O, REACTOR TRIP OR SAFETY INJECTION, SHALL BE PERFORMED.
NOTE:
o Step 1 is an IMMEDIATE ACTION step.
o Any runback signal will block auto out motion of rod control system.
O 1
Check Rod Control:
o Rod control bank selector switch in AUTO Place rod control bank selector switch in manual and drive rods in as necessary to control Tavg.
o Control rods stepping in as required
EOP:
AP-TURB.2 TITLE:
AUTOMATIC TURBINE RUNBACK REV 10 PAGE 4 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 2 Verify Annunciator F-15, RCS TAVG DEV, EXTINGUISHED Place steam dump mode selector switch to MANUAL.
3 Check Control Rod Status:
o Annunciator E-28, POVER RANGE ROD DROP ROD STOP 5%/5 SECONDS-EXTINGUISHED Go to Step 12.
o Annunciator C-14, ROD BOTTOM ROD STOP
- EXTINGUISHED 4 Verify the following:
a.
Any aT runback signal -
PRESENT b.
IiT runback occurring as required a.
Go to Step 5.
- b. Perform the following:
- 1) Place EH in MANUAL.
- 2) Reduce turbine load as necessary.
5 Verify Tavg TRENDING TO TREF Place Rod Control Bank Selector Switch to MANUAL and operate control rods as necessary to control Tavg.
IF steam dump required and NOT operating, THEN perform the following:
- a. Place steam dump mode selector to MANUAL.
- b. Place steam dump pressure controller, HCV-484, to MANUAL.
c.
Open steam dump valves as necessary to control Tavg.
EOP:
AP-TURB.2 TITLE:
AUTOMATIC TURBINE RUNBACK REV:
10 PAGE, 5 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 6 Verify All 4I Indications Approximately Equal Check NIS PR upper and lower detector currents to determine if any detector has failed.
IF NIS PR upper or lover detector has failed, THEN perform the following:
- a. Allow runback to reduce reactor pover to 75%.
- b. Place EH in manual to terminate runback.
- c. Defeat failed PR channel.
(Refer to ER-NIS.3, PR MALFUNCTION.)
7 Check Delta T Channel Indications:
o All 4 delta T channels indicate approximately the same value o
All 4 delta T channel setpoint
'indications approximately equal o.All 4 delta T channels responding to the turbine runbacks Perform the following:
a.
Check for instrument failure:
o Any delta T channel indicating significantly different than the other 3.
o Any PRZR pressure or Tavg channel malfunction.
- b. IF 1 channel is failed, THEN perform the following:
- 1) Allov runback to reduce reactor power to 75% or until condi,tion clears.
2)
WHEN pover less than 75%,
THEN place EH in manual to terminate runback if necessary.
3)
Go to Step 9.
EOP AP-TURB.2 T!TEE:
AUTOMATIC TURBINE RUNBACK REV:
10 PAGE 6 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 8
Turbine Runback Signal CLEARED
@HEN turbine runback signal clears, THEN go to Step 9.
0
EOP:
AP-TURB.2 TITLE:
AUTONATIC TURBINE RUNBACK REV'0 PAGE 7 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED CAUTION IF STEAM DUMP CONTINUES FOR A SIGNIFICANT LENGTH OF TIME, CONDENSATE TEMPERATURE AND CONDENSER BACK PRESSURE SHOULD BE MONITORED.
- * * * * * * * * * * * * * * * * * * * * * * *
- g * * * * * * * * * * * * * *
- NOTE:
Tavg will indicate high or low for some instrument failures affecting steam dump control, rod control, and PRZR level control.
1 9
Establish Stable Plant Conditions:
- a. Tavg - TRENDING TO TREF b.
PRZR pressure
- TRENDING TO 2235 PSIG
- a. Insert control rods or, if necessary decrease turbine load to match Tavg to Tref.
4
- b. Verify proper operation of PRZR, heaters and spray or take manual control of PRZR press controller 431K.
IF PRZR pressure can NOT be controlled, THEN refer to AP-PRZR;1, ABNORMAL PRESSURIZER PRESSURE.
c.
PRZR level - TRENDING TO PROGRAM
- c. Verify proper operation of charging pump speed controllers OR take manual control of speed controllers to control PRZR level.
d.
Rod insertion limit alarIIIs-EXTINGUISHED e.
Steam dump valves
- CLOSED
- d. Failure of a aT channel riill affect rod insertion limit indication.
Determine actual RIL from Tech Spec figure 3.10-1.
IF necessary, THEN refer to AP-CVCS.2, IMMEDIATE BORATION and continue with Step 8e.
e.
Ensure proper operation of steam dump control system.
,\\
EOP:
AP-TURB.2 TITLE:
AUTOMATIC TURBINE RUNBACK REV 10 PAGE 8 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 10 Check REGEN Hx Letdown Indications:
o Annunciator A-4, REGEN HX LETDOWN OUT HI TEMP 395'F-EXTINGUISHED o
REGEN Hx letdown outlet temperature
- STABLE OR DECREASING Adjust charging flow and HCV-142 as necessary to control REGEN Hx letdown outlet temperature.
IF REGEN Hx letdown outlet temperature can NOT be controlled, THEN perform the following:
- a. Close all letdown orifice valves (AOV-200A, AOV-200B and AOV-202).
- b. Close loop B to REGEN Hx isolation valve (AOV-427).
ll Evaluate Cause Of Turbine Runback:
- a. Failed instrument channel-IDENTIFIED b.
Go to ER-INST.1, REACTOR PROTECTION BISTABLE DEFEAT AFTER INSTRUMENTATION LOOP FAILURE a.
Perform the following:
- 1) Attempt to determine and correct conditions requiring turbine runback.
2)
Go to Step 21.
12 Check Instrument Busses ALL ENERGIZED Perform the following:
a.
WHEN Rx power below 75%,
THEN place EH in MANUAL.
- b. Continue with Step 14 while attempting to restore failed instrument bus (Refer to T-25, INSTRUMENT AND CONTROL BUS).
k 1l
EOP:
AP-TURB.2 TITLE:
AUTOMATIC TURBINE RUNBACK REV 10 PAGE 9 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 13 Verify Turbine Load Reduction AT LEAST 20~o Place EH in manual and reduce turbine load by 20X.
14 Check Main Generator Load:
o Gross load -
GREATER THAN 15 MW o
Load -
STABLE IF load can NOT be stabilized above 15 MW, THEN trip turbine and go to AP-TURB.1, TURBINE TRIP WITHOUT RX TRIP REQUIRED, Step 1.
15 Verify Proper Steam Dump Operation:
o Annunciator G-15, STEAM DUMP ARMED - LIT o
Steam dump operating to control Tavg within 6'F of Tref Perform the following:
Ci a.
Place steam dump mode selector to MANUAL.
- b. Place steam dump controller, HCV-484, to MANUAL.
c.
Open steam dump valves as required to stabilize Tavg.
16 Verify Bus 12A And Bus 12B Energized:
o Bus 12A normal or alternate feed breaker CLOSED o
Bus 12B normal or alternate feed breaker CLOSED o
Bus 12A and 12B voltage-GREATER THAN 4KV Go to AP-ELEC.1, LOSS OF 12A AND/OR 12B TRANSFORMER.
IJ L
EOP:
AP-TURB.2 TlTLE:
AUTOMATIC TURBINE RUNBACK REV:
10 PAGE 10 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 17 Establish Stable Plant Conditions:
a.
Tavg - TRENDING TO TREF b.
PRZR pressure
- TRENDING TO 2235 PSIG c.
PRZR level - TRENDING TO PROGRAM
- a. Insert control rods or, if necessary, decrease turbine load to match Tavg to Tref.
- b. Verify proper operation of PRZR heaters and spray or take manual control of PRZR press controller 431K.
IF PRZR pressure can NOT be controlled, THEN refer to AP-PRZR.l, ABNORMAL PRESSURIZER PRESSURE.
- c. Verify proper operation of charging pump speed controllers or take manual control of speed controllers to control PRZR level.
18 Check REGEN Hx Letdown Indications:
o Annunciator A-4, REGEN HX LETDOW OUT HI TEMP 395'F-EXTINGUISHED o
REGEN Hx letdown outlet temperature
- STABLE OR DECREASING Adjust charging flow and HCV-142 as necessary to control REGEN Hx letdown outlet temperature.
IF REGEN Hx letdown outlet temperature can NOT be controlled, THEN perform the following:
a.
Close all letdown orifice valves (AOV-200A, AOV-200B and AOV-202).
- b. Close loop B to REGEN Hx isolation valve (AOV-427).
Tj
EOP:
AP-TURB.2 TITLE:
AUTOMATIC TURBINE RUNBACK REV'0 PAGE 11 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED NOTE:
With a PR lower detector failed low, the plant could experience both a dropped rod turbine runback with continuing aT runbacks.
19 Check NIS PR Indication:
o All PR total channel indicators ON SCALE o All 4I indicators-APPROXIMATELY EQUAL IF a NIS PR failure is indicated, THEN perform the following:
- a. Verify 20% dropped rod runback has occurred.
IF 4T runbacks still occurring, THEN allow runbacks to reduce power to less than 75% and place EH in manual to terminate runbacks.
- b. Refer to ER-NIS.3, PR MALFUNCTION.
c.
Go to Step 21.
20 Verify Dropped Rod Indication:
a.
Check dropped rod indication o
MRPI indicates rod on bottom
-OR-o Annunciator C-14, ROD BOTTOM ROD STOP - LIT
- a. IF the cause of the runback has NOT been determined, THEN return to Step 2.
IF the cause of the runback has been determined, THEN go to Step 21.
b.
Go to AP-RCC.2, RCC/RPI MALFUNCTION
k il VPP
EOP:
AP-TURB.2 TITLE:
AUTOMATIC TURBINE RUNBACK REV 10 PAGE 12 of 12 STEP ACTION/EXPECTED RESPONSE
RESPONSE
NOT OBTAINED 21 Establish Normal Plant Conditions:
- a. Verify EH control in AUTO IMP IN
- b. Verify steam dump controller, HC-484, in AUTO at 1005 psig
- c. Verify annunciator G-15, STEAM DUMP ARMED - EXTINGUISHED
- d. Verify charging pump speed control in AUTO
- e. Verify Rod Control Selector Switch in AUTO
- a. IF conditions requiring runback have cleared, THEN place EH in AUTO IMP IN.
- c. IF Tavg within 6'F of Tref, THEN perform the following:
- 1) Ensure steam dump valves closed.
- 2) Reset steam dump.
- d. Place charging pump speed control in AUTO if desired.
- e. Place Rod Control Selector Switch in AUTO if desired.
NOTE:
Refer to 0-9.3, NRC STATE AND COUNTIES IMMEDIATE NOTIFICATION, for reporting requirements.
22 Notify Higher Supervision
-END-
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