FR679137A - Improvements to protection systems for electrical circuits - Google Patents

Improvements to protection systems for electrical circuits

Info

Publication number: FR679137A
Authority: FR; France
Prior art keywords: electrical circuits; protection systems; systems; protection; circuits
Prior art date: 1928-05-14
Legal status (The legal status 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 status listed.): Expired

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Compagnie Francaise Thomson Houston SA

Original Assignee

Compagnie Francaise Thomson Houston SA

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.)

1928-05-14

Filing date

1929-05-14

Publication date

1930-04-09

1929-05-14 Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA

1930-04-09 Application granted granted Critical

1930-04-09 Publication of FR679137A publication Critical patent/FR679137A/en

Status Expired legal-status Critical Current

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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/267—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for parallel lines and wires

FR679137D 1928-05-14 1929-05-14 Improvements to protection systems for electrical circuits Expired FR679137A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US679137XA	1928-05-14	1928-05-14

Publications (1)

Publication Number	Publication Date
FR679137A true FR679137A (en)	1930-04-09

Family

ID=22079230

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR679137D Expired FR679137A (en)	1928-05-14	1929-05-14	Improvements to protection systems for electrical circuits

Country Status (1)

Country	Link
FR (1)	FR679137A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2590992A1 (en) *	1985-12-04	1987-06-05	Enertec	METHOD AND DEVICE FOR DISCRIMINATION OF A DEFECTIVE DRIVER IN A MULTIPLE LINE

1929
- 1929-05-14 FR FR679137D patent/FR679137A/en not_active Expired

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2590992A1 (en) *	1985-12-04	1987-06-05	Enertec	METHOD AND DEVICE FOR DISCRIMINATION OF A DEFECTIVE DRIVER IN A MULTIPLE LINE
EP0229547A1 (en) *	1985-12-04	1987-07-22	GEC ALSTHOM PROTECTION & CONTROLE	Process and device for pinpointing a faulty conductor in a multiple line

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