ML20033F100

Rev 14 to Procedure AP-580, Reactor Trip

ML20033F100
Person / Time
Site:	Crystal River
Issue date:	02/08/1990
From:	Bandhauer W FLORIDA POWER CORP.
To:
References
AP-580, NUDOCS 9003160007
Download: ML20033F100 (24)

Text

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SHEET NUMBER REVISION NUMBER COPY NUMBER - AP 5901 14 . 'I .INSTRUCTIONSLTO THE ~ ADDRESSEE - ee g 4 r b ' 'COMFLETE E ACH OF ' 7 HEi 1NSTRUCTI ONS BELOW WHICH ARE MARKED WITH ' AN. " X" g '!( 1 ). VERIFY-THE -DOCUMENTS RECEIVED AGREE WITH THE ADOVE DESCRIPTION: '.(2 )lINCORPORATE THE TR ANSMITTED DOCUMENTS. INTO-YOUR ~ FILES ' _ (3f DESTROY DOCUMENTS OR PORTIONS OF-DOCUMENTS SUPERSEDED BY THE ABOVE r,___.'. ( 4 ) S! GN AND-D ATE.'. IN: THEL SPACES BELOW INDICATING THAT~ YOU COMPLETED .THESE?INSTRVOTIONS, ..__,,_-tS). SIGN BELOW ; INDICATING. THAT YOU MVE READ AND UNDERSTOOD -THE - t CHANGES AS-IDENTIFIED. [b:-( 6 ) ' RETURN TO, DOCUMENT CONTROL.. CR YS TAL R I VER UNI T 3,. MAC 41 - NAIC__,_ ~ NR2A FL A.- P OWER COR P., P. O.~ . BO X ~ 219 CR YSTAL RIVER.FLA. 32629 f SIGNATURE' OF ' ADDRESSEE DATE [ INDEPENDENT VERIFICATION DATE _ ( OP S ) = 9 4 7-9 s ~' s. m=amunmOr P PNU

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l ',9 ) RT REV 14 DATE 02/08/90 AP 58'O f REACTOR TRIP 1.0 ENTRY CONDITIONS 44 h, k If Rx trips, 4 QB in Modes 1 or 2 o (},pk aFNJ AD.Y of the following conditions exist: k 6 q.*/ x s. g%. o RCS PRESS is 2 2355 psig, +'/ s %;,0,%.[% '4, o RCS PRESS is s 1800 psig, o Th is 2 618'F, O, ( h4 o Rx power is 2 104.9%FP, /p 4 o RB PRESS is 2 4 psig, (3 o less than 3 RCPs are operating, ~ \\') o Turbine trip at 1 457FP, o Loss of both MFWPs at 2 20%FP, o RCS PRESS and TEMP are below variable PRESS TEMP curve, o Rx power and imbalance outside limits of barn curve, o PZR level is 2 290", o 2 or more MSIVs are closed, o All MFW is lost at 2 157.FP, ItB use this procedure, i L l This Procedure Addresses Safety Related Components Approved by NOS W k b b

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e g L 2.0 IMMEDIAThACTIONS 7 - s ACTIONS DETAILS CAUTION Steps 2.1 through 2.3 must be performed prior to performing any other Immediate Actions of this procedure. This is to ensure adequate heat removal capabilities. 2.1 Depress Rx Trip pushbutton. 2.2 Ensure CRD Groups 1 through 7 are fully inserted. IE m fully inserted, IliG open both 480V Bkrs: o 3305 o 3312, mfd reclose. 2.3 Ensure. intermediate range flux is decreasing. IE NOT, 1113 CONCURRENTLY PERFORM EP-140, Emergency Reactivity Control, beginning with Step 2.1. 2.4 Depress Turbine Trip pushbutton. 2.5 Ensure TVs or GVs are closed. l IE E, I ItiEN close the MSIVs. l l 2.6 Ensure " MAIN FW BLOCK" valves are closing and MFW flows are decreasing. E ip both MFWPs. ,r) 'LJ AP-580 REV 14 PAGE 3 of 23 RT i

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i i i-2.0 IMMEDIATE ACTIONS (CONT'D) 'i ACTIONS DETAILS 2.7 Ensure "LO LOAD FW BLOCK" valves are closing. I E HQI, M close associated Low Load Control Valves. 2.8 Ensure PZR level is 2 50". H HQI, i E open MUV 24 H PZR level does HDI recover, M perform the following: 1. Ensure BWST suction is open 2. Start second MVP i 3. Open additional HPI valves as required g 2.9 Ensure steam Hdr PRESS is = 1010 psig. H HQI, MSSV TV monitor may be used M verify position of: to verify MSSV/ADV closed o.

TBVs, o

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MSSVs. 2.10 Ensure output Bkrs are open. / 1E HQI, M notify Dispatcher, 2.11 Ensure ICS and NNI power is available, lE NOT, M trip both MFWPs. AP-580 REV 14 PAGE 5 of 23 RT 5

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I t f_ 3.0 FOLLOW-UP ACTIONS ( IJ ACTIONS DETAILS 3.1 1E more than I safety or regulating control rod is NQI fully inserted, Ih@ start boration at 2 55 gpm from BWST, QB 2 10 gpm from BAST. l 3.2 Notify SOTA of plant conditions. l 3.3 CONCURRENTLY PERFORM VP 580, Plant Safety Verification Procedure, beginning with Step 1.1. O,.3 l y . <~ g N,) AP-580 REV 14 PAGE 7 of 23 RT

.,a . 1' 6 it ..s, < g g1,'. ..a ,t g r ';t' - n,2 (R /r.' t .,1 1,. - >--[ i ts. t* i Table 1: Adequate Subcooling Margin .-f RCS PRESS, MARGIN j i >.1500 psig' 1 20'F s 1500 psig 2 50'F N l u [-.- 4 1 hi .i 'r: js p.s im e 4 5 I .t 4 s i .n; i ul.. .t blp_.. -[ t . < ;;i 1 t h .. t L q 'i e. tg, .a - r fo I m e 3 i ? n - t .AP-580 REV 14-PAGE 8 of 23 RT i t t ei ? u 4 I

7 E ,"\\_ 3.0 FOLLOW-UP ACTIONS (CONT'D) -~ N) ACTIONS DETAILS CAUTION 1E RCPs have 801 been stopped within 2 min from time that adequate subcooling margin was lost, IHEN RCPs must remain running to prevent core damage. l 3.4 If, at any time while See Table 1 for adequate ~ performing this procedure, subcooling margins, adequate subcooling margin does 801 exist, THEN: Stop all RCPs, Stop all RCPs and ensure Oil Lift Pumps start. R:ise OTSG levels to Raise OTSG level to 95%: ~~' 95% using EFW,

1. Depress both "EFW

<""} INITIATE" pushbuttons on i,/ Channels A and B.

2. Depress "95%" level select pushbuttons on OTSG A and B.

Start full HPI. Start full HPI: 1 Open HPI suctions from [ Go to AP-380, ES BWST: Actuation, beginning with Step. 3.4. o MUV-58 o MUV-73, 2 Ensure 2 2 MVPs and their cooling water y: pumps are operating.

3. Open all 4 HPI valves:

MUV-23 ._ MVV-24 MVV.-25 MVV-26. ID v AP-580 REV 14 PAGE 9 of 23 RT

p _ ['~~T _ Table 1: Adequate Subcooling Margin ( '~' RCS PRESS MARGIN > 1500 psig 2 20'F s 1500 psig 2 50'F l 3.4 If adequate subcooling margin does NOT exist, 16: o Within 2 min, stop_ all RCPs, o Raise OTSG levels to 95% with EFW, o Start full HPI, o Go To AP-380, ES Actuation, beginning with Step 3.4. ,c, v Nj, AP-580 REV 14 PAGE 10 of 23 RT

3.0' FOLLOW-U ACTIONS (CONT'D)- J3 P i x/ - ACTIONS DETAILS l 3.5 IE.TB Operator reports a lower OTSG PRESS using TBVs. MSSV is HQI fully seated, IHEN momentarily lower IE TBVs are HQI available, affected OTSG's PRESS IHEN use ADVs.- 50 to 200 psig to reseat valve. MSSV Location "A" OTSG "B" 0TSG MSSVs MSSVs MSV-33 MSV-35 MSV-34 MSV-36 MSV-37 MSV-39 MSV-38 MSV-41 MSV-40 MSV-44 MSV-42 MSV-45 MSV-43 MSV-47 MSV-46 MSV-48 ., ^) '_/ l 3.6 If MSSVs do HQI fully seat, s IHEN notify an available operator or mechanic to manually cycle MSSV. l l l 3.7 If an uncontrolled cooldown o Depress "SG MAIN STM 1

exists, ISOLATION" pushbuttons on QB steam leak is in the RB, EFIC channels A and B for IEEN isolate the affected affected 0TSG.

OTSG, l

ANQ CONCURRENTLY PERFORM o Depress "SG MAIN FEED AP-460. MS Line Isolation ISOLATION" pushbuttons on Actuation beginning with EFIC channels A and B for Step 2.1, affected 0TSG. [ t \\.) AP-580 REV 14 PAGE 11 of 23 RT

I s. Table 1: Adequate Subcooling Margin RCS PRESS MARGIN > 1500 psig 2 20*F 1 1500 psig 2 50'F l 3.4 If adequate subcooling margin does NOT exist, i 111 0 : o Within 2 min, stop all RCPs, o Raise OTSG levels to 95% with EFW, o Start full HPI, o Go to AP-380, ES Actuation, beginning with Step 3.4. Table 2: Required 0TSG Levels r~ k,s) Condition Level s Inadequate subcooling margin 95% No RCPs 65% and adequate subcooling margin RCPs Low Level and adequate subcooling margin Limits c I n \\_- AP-580 REV 14 PAGE 12 of 23 RT

/~'G 3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS '~ l 3.8 1E NNI-X power is 801 available lhEN CONCURRENTLY PERFORM AP-581, Loss of NNI-X beginning with Step 3.1. l 3.9 IE NNI-Y power is HQI available IHEH CONCURRENTLY PERFORM AP-582, Loss of NNI-Y, beginning with Step 3.1. h

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l AP-580 REV 14 PAGE 13 of 23 RT

s .,%~, Table 1: Adequate Subcooling Margin L - / RCS PRESS MARGIN' > 1500 psig 2 20*F s 1500 psig 2 50*F i 3.4 If adequate subcooling margin does MQI exist, THEN: o Within 2 min, stop all RCPs, o Raise OTSG levels to 95% with EFW, o Start full HPI, o Go to AP-380, ES Actuation, beginning with Step 3.4. 1 Table 2: Required 0TSG Levels ,)L Condition Level Inadequate subcooling margin-95% No RCPs 65% and adequate subcooling margin RCPs low Level and adequate subcooling margin Limits D. -\\~,l AP-580 REV 14 PAGE 14 of 23 RT

o 5 4: Y [7 '3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAllS l 3.10 Ensure " MAIN FW BLOCK" and o Ensure closed: "LO LOAD FW BLOCK" valves ,_ FWV-29,. Main Block, are closed. FWV-30, Main Block, FWV-33, Lo Load Block, FWV-36, Lo Load Block. l 3.11 Isolate the MSR HP bundles, o Depress " RESET" pushbutton on reheat control panel, o CLOSE: ,_ MSV-29, MS to "A"

MSR, MSV-30, MS to "B" MSR,

_ MSV-31, MS to "C"

MSR,

_ MSV-32, MS to "D" MSR. l 3.12 Ensure main turbine oil Ensure started: pumps have Auto started, o TBP-2,"TG BRG OIL PP AC", o TBP-8,"HP SEAL OIL B/V PUMP". l 3.13 Maintain MUT level o IE MUT is > 86", between 55 and 86". Iti@ bleed to RCBT. o IE MUT is < 55", THEN feed from RCBT, AND ensure MUV ll2 is selected to MUT. J.E feeding from RCBT does NOT restore level, THEN open BWST suction to operating MVP. l 3.14 Maintain required 0TSG See ' Table 2 for required OTSG levels.

levels, p.

(_. AP-580 REV 14 PAGE 15 of 23 RT

6 I L Table 1: Adequate' Subcooling Margin /' RCS PRESS MARGIN > 1500 psi 9 2 20*F 5 1500 psig 2 50'F l 3.4 If adequate subcooling margin does HQI exist, ItJ18: o Within 2 min, stop all RCPs, o Raise OTSG levels to 95% with EFW, o Start full HPI, o Go to AP-380, ES Actuation, beginning with Step 3.4. Table 2: Required 0TSG Levels ~n I Condition Level J Inadequate subcooling margin 95% No RCPs 65% and adequate subcooling margin RCPs Low Level and adequate subcooling margin Limits 1 /' AP-580 REV 14 PAGE 16 of 23 RT

k ) '3.0 FOLLOW-UP ACTIONS (CONT'D) ACTIONS DETAILS l 3.15 Maintain PZR level between o Adjust PZR level "SETPOINT" 80 and 120". to adjust PZR level, o Adjust MVV-51 controller to adjust letdown flow. l 3,16 Notify TB Operator to 1 Ensure ASV-18 is opened, ensure Aux steam is supplied from 2 Open ASV-16. Units 1 and 2. 3 Regulate ASV-26 between 125 and 175 psig. l 3.17 Notify TB Operator to close HVV-103, DFT Vent to Atmosphere. (') 'V l 3.-18 Notify TB Operator to - HDV-47, FWHE-5A Drain to isolate FWHE-SA and 5B

DFT, drains to the DFT.

- HDV-48, FWHE-5B Drain to DFT. l 3.19 Ensure TDV-1 thru TDV-10, Turbine Drains Valves, are open. l 3.20 Select the voltage regulator to "0FF". 4 l 3.21 Open the main generator Field Bkr. ,y Q,) AP-580 REV 14 PAGE 17 of 23 RT

1 i Table 1: Adequate Subcooling Margin j RCS PRESS MARGIN > 1500 psig i 20*F < 1500 psi 9 2 50'F l 3.4 If adequate subcooling margin does NOT exist, IH[H: o Within 2 min, stop all RCPs, o Raise OTSG levels to 95% with EFW, o Start full HPI, o Go to AP-380, ES Actuation, beginning with Step 3.4. Table 2: Required 0TSG Levels (m.. {} Condition Level Inadequate subcooling margin 95% r l No RCPs 65% and adequate subcooling margin l-RCPs Low Level l and adequate subcooling margin Limits l Table 3: Multiple Stuck Rod Guidance Curves Stuck Rod (s) OP-103C Curve (s) Group 1 rod (s) Curve 7 Group 2,3,4 rod (s) Curve 7 (assume reactivity worth of all 3 groups) Group 5,6,7 rod (s) Curves 8A through 8F (~ Li AP-580 REV 14 PAGE 18 of 23 RT

1, 1 I ?. 3.0 FOLLOW-UP ACTIONS fCONT'D) 6 ACTIONS-DETAILS l 3.22 M IR lowers to 5x10-10 amps, IBEN verify SR energizes. Continue on in this procedure. 3.23 ff borating the RCS due o IE 1 control rod is stuck, to stuck control rod (s), ItiEH refer to OP-103C Curve IBEH stop boration when 18 for adequate shutdown 2 1% shutdown margin is margin boron concentration. -achieved, o LE 2 control rods are stuck, THEN refer to OP-103C Curve 19 for adequate shutdown margin boron concentration. O o J.E > 2 control rods are stuck, s._) THEN determine required boron concentration for adequate shutdown margin by the addition of the following: o Boron requirement associated with 2 stuck rods from OP-103C Curve 19, and o Boron-requirement associated with the reactivity of the other stuck rod (s) determined from 0P-103C curves referred to in Table 3. l 3.24 JE power reduction was > 15%FP in 1 hr. THEN notify Chemistry.

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AP-580 REV 14 PAGE 19 of 23 RT

i Table 1: Adequate Subcooling Margin i RCS PRESS MARGIN > 1500 ps19 2 20*F s 1500 psig 2 50'F 3.4 If adequate subcooling margin does NOI exist, THEN: o-Within 2 min, stop all RCPs, o Raise OTSG levels to 95% with EFW, o Start full HPI, o Go to AP-380, ES Actuation, beginning with Step 3.4. Table 2: Required 0TSG Levels s $) Condition Level Inadequate subcooling margin 95% No RCPs 65% and adequate subcooling margin RCPs Low Level and adequate subcooling margin Limits Table 3: Multiple Stuck Rod Guidance Curves Stuck Rod (s) OP-103C Curve (s) Group 1 rod (s) Curve 7 Group 2,3,4 rod (s) Curve 7 (assume reactivity worth of all 3 groups) Group 5,6,7 rod (s) Curves 8A through 8F 4 %_,5 AP-580 REV 14 PAGE 20 of 23 RT

) ,4 3.0 FOLLOW-UP ACTIONS (CONT'D1 ACTIONS DETAILS l 3.25 Notify Health Physics to increase the frequency of radiation surveys on the MV filters, j 3.26 WjiG " TURBINE AT ZERO SPEED" 1. Ensure TBP-6, "TG BRG OIL _ alarm is activated, LIFT PUMP", has started. IllG ensure turbine goes on turning gear. 2. Select turning gear control switch to "AUT0". Continue on in this procedure. IE turning gear does NOT Auto engage, THEN select turning gear control switch to " MAN", AND notify TB Operator to engage turning gear locally. 3.27 Notify TB Operator to Close at local panel on 119 isolate MSR HP and LP ft elevation TB: bundle vents to FWHE-5 and 6. l HDV-539 HDV-540 HDV-543 HDV-544 HDV-547 HDV-548 HDV-551 HDV-552. l 3.28 Notify TB Operator to Close locally: isolate MSR HP drain tank drains to FWHE 5A HDV-1 HDV-3 and.58. HDV-5 HDV-7. O AP-580 REV 14 PAGE 21 of 23 RT

f, ( g-f: ~ Table 1: Adequate Subcooling Margin RCS PRESS MARGIN > 1500 psig 2 20'F $ 1500 psig 2 50*F 3.4 1E adequate subcooling margin does @ I exist, ILE: o Within 2 min, stop all RCPs, o Raise OTSG 1evels to 05% with EFW, o Start full HPI, o Go to AP-380 ES Actuation, beginning with Step 3.4. Table 2: Required 0TSG Levels p_ ) Condition Level Inadequate subcooling margin 95% No RCPs. 65% and adequate subcooling margin RCPs low Level l and adequate subcooling margin Limits Table 3: Multiple Stuck Rod Guidance Curves Stuck Rod (s) OP-103C Curve (s) l Group 1 rod (s) Curve 7 Group 2,3,4 rod (s) Curve 7 (assume reactivity worth of all 3 groups) Group 5,6,7 rod (s) Curves,8A through 8F () AP-580 REV 14 PAGE 22 of 23 RT

4:

3 3.0 FOLLOW-UP ACTIONS (CONT'D)

N_). ACTIONS DETAllS l 3.29 If SSOD authorizes 1 Reset all 4 RPS channels withdrawal of Group 1 rods, IHEN withdraw Group 1. 2 Select both TBV Control stations to Hand. 3 Depress " TRIP RESET" on Diamond Panel. 4 Balance "DEV" on TBV control stations using " MAIN STEAM PRESS" setpoint control. 5 Select TBV control station to Auto. 6 Reset " REACTOR TRIPPED LOCK 0UT 86/ REC". 7 Refer'to OP-502, Control .. /'~'g Rod Drive System, (,) Section 4.2. l 3.30 if plant conditions requires cooldown, THEN GO TO OP-209, Plant Cooldown. ! 3.31 If conditions permit a plant heatup, IBf8 GO TO OP-202, Plant Heatup. i l l i -,\\ j l l AP-580 REV 14 PAGE 23 of 23 RT l .}}