AT385865B - DIFFERENTIAL PROTECTIVE DEVICE - Google Patents

DIFFERENTIAL PROTECTIVE DEVICE

Info

Publication number: AT385865B
Authority: AT; Austria
Prior art keywords: protective device; differential protective; differential; protective
Prior art date: 1979-02-12

Application number

AT71980A

Other languages

German (de)

Other versions

ATA71980A (en

Original Assignee

Licentia Gmbh

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1979-02-12

Filing date

1980-02-11

Publication date

1988-05-25

1980-02-11 Application filed by Licentia Gmbh filed Critical Licentia Gmbh

1987-10-15 Publication of ATA71980A publication Critical patent/ATA71980A/en

1988-05-25 Application granted granted Critical

1988-05-25 Publication of AT385865B publication Critical patent/AT385865B/en

Links

230000001681 protective effect Effects 0.000 title 1

Classifications

- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/045—Differential protection of transformers
- H02H7/0455—Differential protection of transformers taking into account saturation of current transformers

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Emergency Protection Circuit Devices (AREA)
Protection Of Transformers (AREA)

AT71980A 1979-02-12 1980-02-11 DIFFERENTIAL PROTECTIVE DEVICE AT385865B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19792905195 DE2905195C2 (en)	1979-02-12	1979-02-12	Differential protection device

Publications (2)

Publication Number	Publication Date
ATA71980A ATA71980A (en)	1987-10-15
AT385865B true AT385865B (en)	1988-05-25

Family

ID=6062692

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT71980A AT385865B (en)	1979-02-12	1980-02-11	DIFFERENTIAL PROTECTIVE DEVICE

Country Status (4)

Country	Link
AT (1)	AT385865B (en)
CH (1)	CH649421A5 (en)
DE (1)	DE2905195C2 (en)
SE (1)	SE444748B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0045105B1 (en) *	1980-07-28	1984-11-28	BBC Aktiengesellschaft Brown, Boveri & Cie.	Method and apparatus for the differential protection of electrical installations
JPS596715A (en) *	1982-07-01	1984-01-13	三菱電機株式会社	Differential protecting relaying device
JPS5996824A (en) *	1982-11-19	1984-06-04	三菱電機株式会社	Bus protecting relay
JPS60180421A (en) *	1984-02-27	1985-09-14	三菱電機株式会社	Differential protection relaying device
US5627712A (en) *	1990-04-19	1997-05-06	General Electric Company	Transformer differential relay

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1956527C3 (en) *	1969-11-11	1973-01-04	Siemens Ag, 1000 Berlin U. 8000 Muenchen	Differential protection device
US3832600A (en) *	1973-05-17	1974-08-27	Westinghouse Electric Corp	Transformer internal fault detector

1979
- 1979-02-12 DE DE19792905195 patent/DE2905195C2/en not_active Expired
1980
- 1980-02-01 CH CH85380A patent/CH649421A5/en not_active IP Right Cessation
- 1980-02-11 AT AT71980A patent/AT385865B/en not_active IP Right Cessation
- 1980-02-12 SE SE8001097A patent/SE444748B/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
SE444748B (en)	1986-04-28
DE2905195C2 (en)	1985-04-04
ATA71980A (en)	1987-10-15
CH649421A5 (en)	1985-05-15
SE8001097L (en)	1980-08-13
DE2905195A1 (en)	1980-08-21

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Legal Events

Date	Code	Title
1992-10-15	UEP	Publication of translation of european patent specification
1994-07-15	ELJ	Ceased due to non-payment of the annual fee
1997-08-15	REN	Ceased due to non-payment of the annual fee