SYSTEM AND METHOD FOR PROVIDING BACKUP PROTECTION IN A POWER SUBSTATION - Patent 0954771

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EP 0 954 771 A1

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(43)	Date of publication:
	10.11.1999 Bulletin 1999/45

(21)	Application number: 98902832.0

(22)	Date of filing: 21.01.1998

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International Patent Classification (IPC):

G05B 19/ 042^{( . )}
H02H 3/ 05^{( . )}

H02H 7/ 30^{( . )}

(86)	International application number:
	PCT/US1998/001208

(87)	International publication number:
	WO 1998/033099 (30.07.1998 Gazette 1998/30)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

23.01.1997 US 19970788046
23.01.1997 US 19970787607
23.01.1997 US 19970788900

(71)	Applicant: COMMONWEALTH EDISON COMPANY
	Chicago, IL 60603 (US)

(72)	Inventor:
	GOODPASTER, Barry, G. Westmont, IL 60559 (US)

(74)	Representative: McLeish, Nicholas Alistair Maxwell, et al
	Boult Wade Tennant 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)

(54)	SYSTEM AND METHOD FOR PROVIDING BACKUP PROTECTION IN A POWER SUBSTATION