METHOD OF LOCATING A SINGLE-PHASE GROUND FAULT IN A POWER DISTRIBUTION NETWORK - Patent 0846271

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EP 0 846 271 A1

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(43)	Date of publication:
	10.06.1998 Bulletin 1998/24

(21)	Application number: 96927078.0

(22)	Date of filing: 23.08.1996

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International Patent Classification (IPC):

G01R 31/ 08^{( . )}

(86)	International application number:
	PCT/FI1996/000457

(87)	International publication number:
	WO 1997/008562 (06.03.1997 Gazette 1997/11)

(84)	Designated Contracting States:
	AT DE DK ES FR GB IE IT SE

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Priority:

23.08.1995 FI 19950003970

(71)	Applicant: ABB Research Ltd.
	8050 Zürich (CH)

(72)	Inventors:
	RANTANEN, Reijo FIN-65370 Vaasa (FI) SUONTAUSTA, Janne FIN-65370 Vaasa (FI)

(74)	Representative: Lipsanen, Jari Seppo Einari, et al
	Seppo Laine Oy Lönnrotinkatu 19 A 00120 Helsinki 00120 Helsinki (FI)

(54)	METHOD OF LOCATING A SINGLE-PHASE GROUND FAULT IN A POWER DISTRIBUTION NETWORK