ML21278A198

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2 to Updated Final Safety Analysis Report, Chapter 7, Figures
ML21278A198
Person / Time
Site: Calvert Cliffs  
Issue date: 09/07/2021
From:
Exelon Generation Co
To:
Office of Nuclear Reactor Regulation
Shared Package
ML21278A102 List: ... further results
References
NEI 99-04
Download: ML21278A198 (32)
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  • 5-STEAM GENERATOR PRESSURES 6-PRESSIJRIZER PRESSURE T-THERMAL MARGIN B-1.0SS OF LOAD 9-CONTAINMENT PRESSURE 10-A.xial Flux Offset 1-Asymetric Stearn Generator Load
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7-9 SAFETY INJECTION ACTUATION SIGNAL low*LoW Pressurizer Pressure or SIAS High Containment Pressure SIAS S.IAS Can Be Blocked Manually to Provide for System Maintenance and Shutdown Oepressurization. Block Is Automatically Removed Above a Preset Pressurizer Pressure llALTIMOl]E GAS &. EJ.ECTl\\IC CO. Cnlvr.rl C'li fis N11d1*ar PowL'r Plan! Safety Injection Actuation Signal Figure 7-9 Rev.a

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FIGURE 7-10 LOGIC DIAGRAM - ENGINEERED SAFETY FEATURES ACTUATION SYSTEM UNIT 2 (Sheet 2) l 5T:)P, 1't-1NK. XT ;C.Y[I IH!Ztf:-'.' .w.1[1 '. !%;'t::\\t,1£k;i;.'l!il*:....

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7-11 REACTOR REGULA Tl NG SYSTEM-BLOCK DIAGRAM I 2 TO MAJH CONTROL A BOARD LIGHT  0 R::. CM. 0CK LOOP I TN

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EXT 1CP£JtATE I I LOOP 2 LOOP 2 Tc !EXTERNAL SIGNAL INPUT 8 TURSINE F"IAST ST AGE PRCSSUAC POWER RRIGE NEUT F"LUR T' c0lr  TQ UAIN CONTROL llONIO 11411 ol I c 01 L_ D E 1 2 3 - It-K.. 1 !2 K. 519.5 TUABINE F'IRST ST ACE IDOS 'IHll PMSSUIC n..-tNE POWERI E 4 STEAM DUMP AREA OEM LSP TAVG-TREF HIGH-t.OW ALARM TAVG.. TRCF STOP. CONTACT OPENING ON HIGH ALARM COllT ACT OPENING ON LOW Al.Niii THINK. ACT AND REVIEW O> 0 <j> N A <.:I z ( ) 2 !II z !II a: STEAM DUMP REFERENCE DRAWING AREA DEMAND D-6067-413-021 STEAM DUMP REFERENCE DRAWING QUICK OPEN D-8067-413-021 PRESSURIZE REFERENCE DRAWING LEVEL SET POINT 12132-0025 TAVG-TREF HICH REFERENCE DRAWING ALARM lo A 61087SH0004 TAV G-TREF LO REFERENCE DRAWING ALARM 61D87SHD004 SPEED REFERENCE DRAWING <.:I NOTE 3 3 a: CONTACT 0-8067-413-450 < :c 5 (.J <.:I t:; "" !Jr:: <>< !II a: <>< 0 0

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1. TIME IS ZERO WITH 51.. S2 SWITCHES OPEN
2. *DUPLICATE INPUTS FROM SYSTEM NOT SHOWN
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AUTO t.IODE FOR CEA DRIVE IS INOPERATIVE. RELAYS WERE REMOVED a c D THIS DRAWING WAS REDRAWN FROM COMBUSTION ENG. INC ** 0-8067-413-001. CCNPP F'.P. NO. 12017-010!, REV. 3. DATED 08-12-92. 3 REV OATE 0£SCR I PT I ON 3 1219 AS BUil T INFO ONl Y ROC 1R9100258 AS BUil T DCN 12017-0101-2001SH0001 ES199901317-000 4 LEVELS 1 0""' OSGN OE 1R APPROVED MWE GPK l<AK - SA - - d;J.J BLOCK DIAGRAM REACTOR REGULATING SYSTEM E LAST US£A (£. A.tifcCOf J LA5f OATE VO'HCED {10/10/01 I Rev. 32

7-12 CEA POSITION SETPOINTS Fully ShutdO'Nn CEA's Wlttidrawn 137 urmer Elec T L mit ¢

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2500..,_----..i..,-Safety Valves Open 2400 High Pressure Trio - Both Power operated Relief Valves Open 2 50 Both SP.ray Valves Full Open Above 3 -----/___,,.__ ___ 2350 psia and High Pressure Alarm Both Spr;!Y Valves Full Closed 2300...._ ___ __,li;..... ____ Below 2300 psia 2275 ,/ Proportional Heater Group 11 OFF 11 2250 Control Set Point 2225 l All Backup Heaters 11 OFF" Above 2225 psia 2200 Proportional Heater Group 11 ON" All Backup Heaters 11 ON 11 Below 2200 2lOQH--t----- Low Pressure Alarm

  • 1------ ------------ Thermal Margin/low Pressure Trip Set Point Win Vary Between 1875 CNOTE 2 J and 2500 psia CsOTE 2 J 1875 J.-1' --1--------- Thermal Margin I Low Pressure Trip Minimum Varue lNOTE 1 l 11251--.a.-----Low-Low Pressure Alarm and Safety Injection Actuation Signal NOTE 1: Technical Specification 3.3-4, Table 3.3.4-1 NOTE 2: UFSAR Table 7-1 Calvert Cliffs Nuclear Power Plant PRESSURE CONTROL PROGRAM Figure 7-13 Revision 39

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