ML20118A641

Proposed TS Table 2.2-1 Table Notations Re Ovetemp delta-T & Overpower delta-T

ML20118A641
Person / Time
Site:	Vogtle
Issue date:	09/17/1992
From:	GEORGIA POWER CO.
To:
Shared Package
ML20118A640	List: ELV-04004, Application for Amends to Licenses NPF-68 & NPF-81,revising TS Re Overtemp delta-T & Overpower delta-T Reactor Trip Functions to Provide Addl Operating Margin to Reactor Trip & Turbine Runback Setpoints to Account for Flow Phenomena ML20118A641
References
NUDOCS 9209240265
Download: ML20118A641 (3)

Text

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           .                          ENCLOSURE 3 VOGTLE ELECTRIC GENERATING PLANT REQUEST TO REVISE TECilNICAL SPECIFICATIONS OVERTEMPERATURE DELTA-T AND OVERPOWER DELTA-T ggACTOR TRIP FUNCTIONS INSTRUCTIONS FOR INCORPORATION The proposed change should be incorporated in the Technical Specifications as outlined below:

Remove Pace Insert Pace 2-7*/2-8 2-7*/2-8 2-9*/2-1, 2-9*/2-10 s

                                                                   $b

• Overleaf page containing no change.

E3-1 9209240265 920917 PDR ADOCK 05000424 P ppg

      .-            . - - - .         . -.                 ..        -    - - - -      ._ . .._        ._--       . -   . . . - . . - . .         .    - . .   - . - ~       - .       .
                                                                                                                                                                         '           ~

h TABLE 2.2-1 (Continued) Mm TABLE NOTATIONS . E NOTE-1: -0VERTEMPERATURE AT a 7 AT ( f _1 13

5) $ AT, { K 3 K2 I

[T (y ,7sg) - T 1 + K3 (P - P') - f (AI)) t

          .g po.

to Where: AT = Measured AT , 1 I

                                                         =    lead-lag compensator on measured AT; f

11, 12 =- Time constants utilized in lead-lag compensator for AT, 1: > 8 s, _ 12 1 3 s;

                                                         =    Lag . compensator on measured AT; 1+153                                                                                                           <- 2
                                                       - = .. Time' constants utilized.in the lag compensator for AT, 13 e                                 s;.
          )                            13-
                                                                        ~
                                     'AT-                =    Indicated AT at RATED THERMAL POWER; o

Kg. 5 1.12 K2

                                                         =    0.0224/*F-1 + I           = The function generated by'the lead-lag compensator for T avg 1

• ISD i gg' dynamic compensation;

      .oo i

"": 14, is =

Time constants utilized in the lead-lag compensator for T"#9, 14 > 28 s,

' (ff                                                         is $~~4 s;                                                                                                                   -l wu
      - **                             T-                =    Average temperature, *F; l

y , ts5 - . = Lag' compensator on measured T,yg;

er-E is- = Time constant utilized in.the measured.T,y'g lag compensator, ts' = 0 s; i

l

                                                                   ,    .                       + ,        a   ..     ,                   c - , -                        +         ,

                                                                                                                                      ~

S TABLE 2.2-1 (Continued) G - c-m TABLE NOTATIONS (Continued) Z sn s NOTE 3: OVERPOWER AT S l AT + (1fT5)$AT,-{K 4 -Ksfy'!,,5) (3)ys3)T-Ks[T(1+ts5) f (AI)) 2 3 Where: AT = Heasured AT I = Lead-lag compensator on measured AT; T1. T2 = Time constants utilized in lead-lag compensator

  ]                                                     for AT, ty 18 S,12 5 3 s; 1      =  Lag compensator on measured AT; 1+153 T3         =  Ti    constants utilized in the lag compensator for AT, T3 s; ,

2 kk oo AT o

                                                    =  Indicated AT at RATED THERMAL POWER;

$I aa K4 5 tre8- /, off 22 K5 1 0.02/*F for increasing average temperature and 2 0 for decreasing average PP temperature, lX$ '7S =

                                        .y      t5 7     The function generated by the rate-lag compensator for T,yq dynamic

- compensation, 55 $N T7 Time constants utilized in the rate-lag Compensator for T,yg, 17 1.10 s, ms 1 "" = 1+156 Lag c spensator on measured T,yg; __ ____ _____ ___ ______.}}