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P-6 P-7 P-8 P-9 P-1 0 P-1 I P-1 2 I /2 NEUTRON FLUX I INTERMEDIATE RANGE I ABOVE SET PO I NT I. FUNCTIONAL DIAGRAM BY WESTINGHOUSE _____ 495B71 THRU 495888
- 2/4 NEUTRON FLUX <POWER RANGEi ABOVE SET POINT IP-IOI OR 1/2 FIRST STAGE TURBINE PRESSURE ABOVE SET POINT
- 2/4 NEUTRON FLUX (POWER RANGEi ABOVE SET POINT
- 2/4 NEUTRON FLUX !POWER RANGEi ABOVE SET POINT
- 2/4 NEUTRON FLUX (POWER RANGEi ABOVE SET POINT
- 2/3 PZR CHANNELS BELOW SET POINT
- 2/4 TAVG BELOW SET POINT 0
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DATE 08-01-2018 D.D.
ZNS4 R. E.
RXG2 I. v.
N/A
- p. E.
NIA REVISION DESCRIPTION Revised Per ODN-2*1717 0
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NO.
IR HI NEUTRON FLUX RATE POSITIVE 2 OUT OF 4 OF ANY COMBINATION OF POS f--+--------------+--1--RATE TRIP NOT FROM THE SAME CHANNEL 3R HI NEUTRON FLUX POWER RANGE HIGH SET POINT - 2 OUT OF 4 4R HI NEUTRON FLUX POWER RANGE LOW SET PO I NT - 2 OUT OF 4 5R HI NEUTRON FLUX INTERMEDIATE RANGE I OUT OF 2 6R HI NEUTRON FLUX SOURCE RANGE I OUT OF 2 9R STEAM GENERATOR LOW-LOW WTR LEVEL 2 OUT OF 3 PER LOOP I OUT OF 4 LOOPS IOR PRESSURIZER HIGH WATER LEVEL 2 OUT OF 3 WITH P-7 INTERLOCK I IR PRESSURIZER LOW PRESSURE 2 OUT OF 4 WITH P-7 INTERLOCK 12R PRESSURIZER HIGH PRESSURE 2 OUT OF 4 13R OVER TEMPERATURE 6T 2 OUT OF 4 I 4R OVER POWER 6 T 2 OUT OF 4
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16R HIGH CONTAINMENT PRESSURE 2 OUT OF 4 IBR LOW STEAM LINE PRESSURE 20R REACTOR COOLANT PP BUS UNDERVOLTAGE 21R REACTOR COOLANT PP BUS UNDERFREQ 22R REACTOR COOLANT PP BREAKER TRIP 23R REACTOR COOLANT LOW FLOW 24R TURBINE TRIP 2 OUT OF 3 IN ANY STEAM LINE MANUAL BLOCK INTLK WITH P-1 I 1/2 PER BUS AND 2/2 BLISSES WITH P-7 INTERLOCK 2/3 PER BUS WITH P-7 INTERLOCK 2/4 TRIP WITH P-7 INTERLOCK 2/3 TRIP WITH P-7 INTERLOCK 1/4 TRIP WITH P-8 INTERLOCK 2/3 AUTO STOP OIL PRESSURE OR 4/4 STOP VALVES CLOSED 25R SEISMIC TRIP KOll l,KOll 12 OUT OF 3 PER AXIS K0313 26R CONTAINMENT HI RADIATION REI l,RE12 AIR PARTICLE OR GAS MONITOR IT LOW BEARING OIL PRESSURE 21 THRUST BEARING FAILURE TRIPS IF BEARING OIL DROPS BELOW PRESET VALUE TRIPS IN CASE OF EXCESSIVE WEAR OF THE THRUST BEARING SHOES 31 TURBINE SPEED 111.5%, LOW VACUUM, LOW BEARING OIL PRESS, OR DEH DC BUS TRIP cSV037 DEH OUTPUT 41 MECHANICAL OVERSPEED TRIPS WHEN UNIT REACHES A SPEED OF I 10%
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cSV042 DEH OUTPUT 12T AMSAC SYSTEM KIO I A J/4 STM GEN LO LVL COINCIDENT WITH TURB POWER )407.
131 AMSAC SYSTEM KIO I B 3/4 STM GEN LO LVL COINCIDENT WITH TURB POWER )407.
IG GENERATOR LOSS OF FIELD 4DG2 2G LOW AUTO STOP OIL PRESSURE 63AST3, AUTO STOP OIL PRESS.& TURB. STOP VALVES 4 & 5 CLOSED SIGNALS FED INTO SSPS-DUTPUT K6J5 3G GEN. NEUTRAL START-UP 0. V.
59NSTG2 4G GEN. START-UP OVERVOLTAGE 59STIG2 5G MA IN TRANSF SUDDEN PRESSURE 63MT2 6G GENERATOR DIFFERENTIAL 87G2 JG UNIT OVERALL DIFFERENTIAL 87U2
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-541 21 G 500KV PCB BREAKER FAILURE 550/561BFXI PCB SWITCH N0. 642 TIMING AUX. RELAY
-641 22G GEN STATOR COOLING TRIP 2JG GENERATOR BACK-UP TRIP 21G2 24G GENERATOR UNDERFREQUENCY 81G2 25G GENERATOR NEGATIVE SEQUENCE 46G2 GEN STATOR CLG WATER, HIGH CONDUCT, VERY LOW WATER LEVEL & LOW WATER FLOW 26G GEN ANTI-MOTORING TRIP PS30 STEAM IMPULSE PRESSURE 27G EXCITER OVERCURRENT TRIP 51EI
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BILL OF MATL:
SUPSDS:
SUPSD BY:
DRAWING SHEET PAGE REV J
PACIFIC GAS AND ELECTRIC COMPANY SAN FRANCISCO, CALIFORNIA 500800 I
O 19 Ul=500B25