ML19225B230

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Monthly Operating Rept for June 1979
ML19225B230
Person / Time
Site: Quad Cities  Constellation icon.png
Issue date: 06/30/1979
From: Hannum D
COMMONWEALTH EDISON CO.
To:
References
MOR-790630-1, NUDOCS 7907240322
Download: ML19225B230 (28)


Text

{{#Wiki_filter:+ 9 s . QU AD-C I T I ES N:'_El ~ P C'. 'E R S T AT ! C'; Uti! T: 1 A';D 2 t40!;TH LY P Ei ; CFJ'.A' CE REP ORT JU!'E 1979 C O."t O :, / E A LT c. EDl:0!; CC'P A';Y A!;D 10.-lA-I LL I N015 G AS f. ELECTEIC CD.FANY f;RC D0:!:ET NDS. 50-254 and 50-265 LICENSE N05. DDR-29 and DPR-30 415 263 790724 0 ] 7 g

TACLE CF CG"iENTS

1. Introduction
11. Su , nary of Ogersting Experience A. Unit One C. Uni t Teco 111. Plant of P recedure Changes , Tes ts , Expe rirents, and Safety Pelated liaintenance A. A mendments to Facility License or Technical Speci'icatiens B. Faci li ty or Precedure Changes Peo,ui ring t'RC App rcval C. Ten ts and Experirents Rccui ring IU'C Approval D. Otiic r Changes , Tes ts and Experiments
1. Special Tests E. Cor rect ive fic i riter.ance of Sa f e ty-Rel a teJ Equiprent IV. License Event Reports V. Data Tabulations VI. Un i c,ue F e porti ng Raqui rcr an t :

A. Main Steam Relief Valve Oparations L. Cont rol Rod Drive Sc: ar. Tining Data Vll. Refueling I n f o rt:a t i on Vill. Glossary 4i5 264

1. I'JT R OD U CT I O N 0.uad-Ci t ies fluclea r Pouer Stat ion is composcd of tt.o Boiling \! ate r Reactc rs ,

each wi th a t'.a>:inum Dependable Car-, city of 769 f"le neu, located in Cordova, Illinois. The Station is jointly o.zned by Comoracelath Edi sc , Ccepony and loaa-filinois Cas & Electric Ccepany. The fluclear Steam Supply Systens are General Electric Corpany Boiling !!ater Reactors. The Archi tect/ Engineer was Sargent E. Lundy, Inc. and the primary cons truction contractor was United Engineers 6 Constructc s. The condunser cooling method is a closed-cycle sprey canal, 'r.d the itississippi River is the condenser cooling water aurce. The plant is subject to license numbers DIR-29 and DPR-30, issued October 1, 1971 and fiarch 21, 1972 res; ectively, pursucnt to Docket iltcbers 50-254 and 50-265 The date of initial reactor cri ticalities for Uni ts 1 and 2 respectively were October 18, 1971 and Ap ril 26, 1972. Cor drcial generation of powar began on February 18, 1973 for Unit 1 and March 10, 1973 for Unit 2. This report was compiled by Dave Hannum, telephone number 309-654-2241, ext. 1/s. t J <_ O J

II. SUt""3 0F OPErAT!!3 D:P E R I El.'C E A. Unit _One June 1 - 6: Unit Cne began the reporting period op2 rating at 792 M;!c. The electrical l oa t' was hcid constant except for ninor lcad reductions on June 2nd due to turbine testing and high ccodenser backprc:- sure on Jure 6th and 7th. June 9 - 10: Load was rcduce:' to 214 iMc in order to rcplace a therrecouple on the 1A inboard M51V. Upon completion of the repair, load was increased et 100 INe/hr. June 11 - 16: voit One held a s tecoy load cf 800 Mi'c. June 17: Electrical load was reduced to 565 M,-;c in order to reverse r:ain ccaden se r ci rcu l at ing v.a te r fic'... June 18 - 22: Unit Onu held a steady load of 783 !We. June 23 - 24: The load was reduced to 550 f t.'c for rain car,f r.ser fic.s reversal. June 25 - 26: Load was reduced to 604 MWe to change reactor feed pump opera-tion due to the 1 A reactor fced pu~p outboard bearing seal lire leck. Af ter co pleticn of repai rs , load was reduced again to return the 1A Reactor Feed Punp to operation. June 27 - 30: Unie Cnc held a steady loaJ of 791 fMe. B. Unit Tuo June 1 - 5: Unit Tuo began the reporting period operating at 682 MWe. Electrical load was held constant except for a reduction to 450 fNe on June 3rd for main condenser flow revei sal. Junc 6 - 10: The 1 cad fluctuated between 700 MWe and 500 tMe due to high condenser beckpressure. 415 266

June 11 - 21. Unit Two held an everage load of 636 Mc during this period, which included a reduction in po. car to 500 MWe for main con-denser flow revc rsa l . June 22: At 1250 Unit Two scran ed duu to a spuricus false con t'c n c, c r low vacuu signal. The reactor ,,as rade cri tical at 1730 and t!.n main generator was placed on line at 2342. June 23: At 0106 Unit Two scra cd due to a reactor loa tater level condition. Thc 2E feed..ater regulator valve went closed for no a ppa ren t reason. The reactor was rcade criticci at OL;5 and the main ganerator was placed on line et 1040. June 24: Load wa sis t.Jily incre.ased et the rate of 10 I"!c/hr to 700 Kic. June 25 - 27: Unit Two held an an rage load of 625 MWe. June 28: Load uss reduced to 440 Kle due to high condenser backpressure. June 29: Unit Two held an average load of 633 Mue. June 30: Load was reduced to 550 MWc for rain condenser floa reve rs a l . { ) {} .

III. PLANT OR PROCE! dE CH/.NS ES , TF5TS , EXP ER l"ENTS AND S/tFETY F.E L 'JED t'.t.I NTENANCE A. /c 'rd <  ?' tn Frcilit- Lic"rv cr Technical E affication A sr.311 portier to A rnd ent No. 50 was in:dsertently omittcd v.:.an originally a lded to DrR-29 in /pril of 1979 This addition ccnsicted of changes to the Muirc.um i s erage P lane r Ho > t Ct ,eration Rate Limits (M/? LN3 i;) . B. Facili+y er Prom- 'u r > CF wae c R.ceirino NRC t,arovc1 Ther.t. re no Facility or proc dera changes requi ring NRC c1pproval during thc reporting p;riod. C. Terts a-d E>nari its Re: rina NE C Ar rc'. - 1 The re ',a re no t es ts or expc rir en t s pe rforr ad du ring the repoiting peried requi rir.; NRC approvcl . D. 0:nce Ch g e<. Tests, and Execrirents Speical Test 2-26: ECC - Ci cui t ry Tg The purpose of this test v,as to transfer control of Unit Two to the Econo,ic Genc rat ion Cor... ol (EGC) System. The unit was placed in both local and remote outcratic recirculation fic.. control and several po..er changes were perforned in each moda. Tne unit was then re turned to master r.anual reci rculation flev, cont rol. Sumary of Safety Evaluation: Operation in the automatic flow control is a norral mode of operation and has been ccasidered in the FSAR. Additional safety has been oJded since the EGC system has added restrictions to the range of power operation. Thus, there would be lets probability of an accident or 4i5 268

rulftoctio of equip.cnt as evaluatcd in the F /J . Operation in Lt.e automatic n';de of ECC was accceplished only at grcater than 2C; power, 65-100% core ficra, and application of prcper kr fcctors for autccatic control limitations to MCPR. Thus, the re was no reduction in tle rargin of safety as dafi,c d in the le;is fcr any Technical Spcci fica-tion. E. Correctivu h i n t. e n - ce of Sa fet , Related Eauir 2nt The folloaing represents a tabulc.r su- ary of the scfcty-related naintenance performeJ cn Unit One a,d Unit Two during the re;,o r t i n c perioJ. The hecdings indic ted in this sur .ry i n c l uda ',ln ri. Recy; t flumbe r s , LER t;u .crs, Co ponents, Ccuse of "alfunctions, Results and Effects on Srfe Operation, and Action Taken to Prevent Rcpetition. t n / ."

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IV. L I C E!: r E"E: TF G T5_ The folloain; is a t A u l a r s u :- iry of all licen.se event reports for Quad-Cities Units c~.c and two occurring during the rcpor t ing pe ri o:', pursu,nt to th-- reportable eccurrcnce reporting re;uircnents as set fcct! i n se c t i c:is 6.6. B . l . and 6. 6. B. z. of the Tc chnic,i Sp cifications. US i T O!;E Licensee Escnt Date of Title of Pennrt flu - r C currencc- Occu rence 79-22/03L 6-22-79 Unit Orc Dh el G m rator Fu..I linc ice o:~ ter rtturnin: to service. U'l l T T'J O Licensce Event Date of Title of R ,>;rt 'i ocr Occurren:2 Occurrcnce 79-12/03L 6-22-79 U r. i t T..u Dicsel Gencretor Cat of Service Lor.ger than l' hear: dt- to ob-struction in 1;inding. 415 2/3

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The folio.fing dat. ta'a ulatiens are presentcJ in this report. A. Cpe rc! ' ng Dc tr P,c p o r t C. /cc e r: S e 0;ily Unit Fe.. 2 r L t ve l C. Unit t h e : de.. and roc.ar n2 duction; 415 274

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