345 kV STUCK BREAKER CONTINGENCIES THAT CAN HAVE UNACCEPTABLE INTER-AREA IMPACTS
(ASSUMES "ALL LINES IN" PRE-CONTINGENCY CONDITIONS)					

	345 kV STATION	
	FAULTED CIRCUIT	
STUCK BREAKER	
ADDITIONAL CIRCUIT/
FACILITY LOST	
REMARKS	

Tewksbury	
337 Sandy Pond	
	337	
338 Woburn	

Tewksbury	
337 Sandy Pond	
	37-39	
339 Golden Hills
Golden Hills #1 transformer	

West Medway	
336 NEA/Sherman Road	
	102	
303 Brayton Point	

Card Street	
347 Sherman Road
Card 5X transformer	
	1T or 3T	
All circuits	
Loss of station	

Card Street	
368 Manchester	
	1T	
All circuits	
Loss of station	

Card Street	
383 Millstone	
	3T	
All circuits	
Loss of station	

Sherman Road	
347 Card Street
Card 5X transformer	
	141	
336 NEA/Sherman Road	

Manchester	
395 Meeksville Junction/Ludlow
North Bloomfield transformer	
	20T	
Manchester 4X transformer	

Southington	
329 Frost Bridge	
	5T	
Southington 3X transformer	
Relay scheme at Southington automatically closes the 19T bus tie breaker on the 115 kV	

Southington	
329 Frost Bridge	
	4T	
362 Haddam Neck	

Long Mountain	
Any circuit	
	Any Breaker	
All circuits	
Loss of station, only 3 breakers at station	

Scovill Rock	
387 East Shore	
	8T	
376 Haddam Neck	

Millstone	
348 Southington	
	14T	
Millstone 3	

Northfield	
312/393 Berkshire/Alps
Berkshire transformer	
	3T	
381 Vermont Yankee	

Northfield	
312/393 Berkshire/Alps
Berkshire transformer	
	5T	
Northfield 3 and 4