ML17262A176

Voltage Simulation for Case EOF LOC4 LOCA Simulation for 50/50 Mode - Circuit 767 Details 12B Transformer Feeding Bus 12B.

ML17262A176
Person / Time
Site:	Ginna
Issue date:	08/30/1990
From:	Swift P ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17262A175	List: ML17262A174 ML17262A176 ML17262A177 ML17262A178
References
NUDOCS 9010050244
Download: ML17262A176 (5)

Text

Attachment 51 Uoltage Simulation for Case EOF LOC4 LOCA Simulation for 50/50 mode Circuit 767 Details 12B Transformer Feeding Bus 12B Prepared by: ~P-2 -$ 0 Reviewed by: ~~ 'I Approved by: ~SO 90 90ltI050244 900920 PDR ADOCK 05000244 P PDC

This attachment is associated with Design Analysis 4525-2 "Adequacv of Electric Svstem Voltages" Rev 1. The results of an additional LOCA voltage simulation is presented in this attachment. Xn particular, case EOF LOCA was repeated with breaker 12BY opened. This new case (EOF LOC4) quantifies the performance of circuit 767 during a I.OCA condition when the offsite power system is configured in the normal 50/50 configuration and the grid voltage is at its minimum value of 116Kv. Xt was not necessary to quantify the performance of circuit 751 for this condition since a more limiting case (DOF LOCA) gives acceptable results.

2.0 Results For the EOF LOC4 case, 480 volt bus voltages, including the 1E buses, remain above 414 volts. The lowest 480 bus voltage is 431.5 on Bus 16. The voltages at motor terminals 16S and 16C are 429 and 430.5 respectively. The lowest I'ICC voltage is 421.9 on ICC 1D.

The lowest 4160 bus voltage for the EOF LOC4 case was 3964 on Bus 12B which is well above the 3600 volt limit.

3.0 Conclusion that circuit 767 will be able

'oThe maintain EOF LOC4 case demonstrates adequate voltages during LOCA conditions for the normal 50/'50 configuration even during worst case grid voltage conditions.

, POWER TECHNOLOGIES INC. POWER SYSTEM SIMULATOR,P U VERSION 4 '

EOF LOC 4, OFF'LINE P6cQ g BUSZ 50/50 MODE AUG 28 1990 LOCA LOAD 116KV TUE, 16:00 NIMUM VOLTAGES BELOW 200.0 PERCENT MINIMUM VOLTAGE NODE PHAS /PU /KV / 100.

S13AE ABC 1.009 67.0 100.9 S13A ABC 1.009 67.0 100.9 767 ABC 0.969 19.3 96.9 12BTP ABC 0.968 19.3 96.8 12BT ABC 0.966 2.3 96.6 12BY ABC 0.966 2.3 96 '

12BY2 ABC 0.966 2.3 96.6 12BTS ABC 0.966 2.3 96.6 12BX ABC 0.955 2.3 95.5 12B22 ABC 0.955 2.3 95.5 12B ABC 0.953 2.3 95. 3 SST16 ABC 0.951 2.3 95.1 16 ABC 0 '99 0.4 89.9 L 16C ABC 0.897 0.4 89.7 L 16S 'BC 0.894 0.4 89.4 L 1D ABC 0.879 0.4 87.9 L SST17 ABC 0.952 2.3 95.2 ABC 0.934 0.5 93.4 L ABC 0.933 0.5 93.3 L IS ABC 0.934 0 5 93.4 L l1B ABC 0.953 2.3 95.3 11BC ABC 0.950 2.3 95.0 11BS ABC 0.948 2.3 94.8 SST15 ABC 0.953 2.3 95.3 l5 ABC 0.918 0.4 91.8 L 15C ABC 0 ~ 918 0.4 91.8 L lr5S ABC 0.911 0.4 91.1

POWER TECHNOLOGIES INC. '

POWER SYSTEN Sii~jULRTOR, VERSION 4.0 P'OF LOC4, OFFLINE, PRQ, BUSZ 50/50 iiODE AUG 28 1990 LOCA LOAD 116KV TUE, 16:01 AL TREE ASYNC SYNC ASYNC SYNC DES NODES LOOPS TNSF SWCH GENS GENS i~1OTS RIOTS 55 27 0 7 4 0 0 0 0 SOURCE LOSSES GENERATION MOTOR LOAD CHARGING CAPACITANCE KW 9. 88iM 127.82 0.00 0.00 KVAR 5.14M 923.19 0.00 0.00 9.37 0.00 PF 0 '87 ACTUAL STATIC LOAD BY CATEGORY 1 2 3 4 KW 0.00 0.00 0.00 9748. 97 KVAR 0.00 0.00 0.00 4226.23 ilAX V-LN 1.009 PU, 66.97 KV, 100.9/ 100.0 V AT NODE S13AE PHASE A MIN V-LiN 0.948 PU, 2.28 KV, 94.8/ 100.0 V AT NODE 11BS PHASE B i~lAX V-LL 0.934 PU, 0.45 KV, 93.4/ 100.0 V AT NODE 17 PHASE CA

.1IN V-LL 0.879 PU, 0.43 KV, 87.9/ 100.0 V AT NODE 1D PHASE AB NOMINAL STATIC LOAD BY CATEGORY 1 2 3 KW 0.00 0.00 0.00 9872.27 R 0.00 0.00 0.00 4341.66 FSC 0.00 0.00 0.00 0.00 DEFPF 1.00 1.00 1.00 1.00 ACTUAL STATIC LOAD BY CATEGORY 1 2 3 KW 0.00 0.00 0.00 9748.97 KVAR 0.00 0.00 0.00 4226.23 GENERATORS MOTORS ASYNCHRONOUS SYNCHRONOUS ASYNCHRONOUS SYNCHRONOUS KW 0.00 0.00 0.00 0.00 KVAR 0.00 0.00 0.00 0.00