CH228757A - Anordnung bei Differentialschutzvorrichtungen. - Google Patents

Anordnung bei Differentialschutzvorrichtungen.

Info

Publication number: CH228757A
Authority: CH; Switzerland
Prior art keywords: arrangement; protection devices; differential protection; differential; devices
Prior art date: 1941-05-05

Application number

Other languages

English (en)

Inventor

Aktiebolaget Allman Elektriska

Original Assignee

Asea Ab

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.)

1941-05-05

Filing date

1942-04-10

Publication date

1943-09-15

1942-04-10 Application filed by Asea Ab filed Critical Asea Ab

1943-09-15 Publication of CH228757A publication Critical patent/CH228757A/de

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
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/28—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus

Landscapes

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

CH228757D 1941-05-05 1942-04-10 Anordnung bei Differentialschutzvorrichtungen. CH228757A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE228757X		1941-05-05

Publications (1)

Publication Number	Publication Date
CH228757A true CH228757A (de)	1943-09-15

Family

ID=20305632

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH228757D CH228757A (de)	1941-05-05	1942-04-10	Anordnung bei Differentialschutzvorrichtungen.

Country Status (4)

Country	Link
CH (1)	CH228757A (de)
DE (1)	DE762983C (de)
FR (1)	FR881766A (de)
GB (1)	GB554210A (de)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE612747C (de) *	1928-08-04	1935-05-03	Siemens & Halske Akt Ges	Differentialschutzanordnung fuer Teile einer elektrischen Anlage

1942
- 1942-04-10 CH CH228757D patent/CH228757A/de unknown
- 1942-04-11 DE DEST61716D patent/DE762983C/de not_active Expired
- 1942-04-16 GB GB5044/42A patent/GB554210A/en not_active Expired
- 1942-05-05 FR FR881766D patent/FR881766A/fr not_active Expired

Also Published As

Publication number	Publication date
FR881766A (fr)	1943-05-07
GB554210A (en)	1943-06-24
DE762983C (de)	1953-06-22

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