FR1424922A - Electrical switchgear - Google Patents

Electrical switchgear

Info

Publication number
FR1424922A
FR1424922A FR6087A FR6087A FR1424922A FR 1424922 A FR1424922 A FR 1424922A FR 6087 A FR6087 A FR 6087A FR 6087 A FR6087 A FR 6087A FR 1424922 A FR1424922 A FR 1424922A
Authority
FR
France
Prior art keywords
electrical switchgear
switchgear
electrical
Prior art date
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
FR6087A
Other languages
French (fr)
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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.)
Filing date
Publication date
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Application granted granted Critical
Publication of FR1424922A publication Critical patent/FR1424922A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/86—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid under pressure from the contact space being controlled by a valve
FR6087A 1964-02-18 1965-02-18 Electrical switchgear Expired FR1424922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB678464A GB1077042A (en) 1964-02-18 1964-02-18 Improvements in or relating to electric switchgear

Publications (1)

Publication Number Publication Date
FR1424922A true FR1424922A (en) 1966-01-14

Family

ID=9820688

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6087A Expired FR1424922A (en) 1964-02-18 1965-02-18 Electrical switchgear

Country Status (4)

Country Link
CH (1) CH450523A (en)
DE (1) DE1515652A1 (en)
FR (1) FR1424922A (en)
GB (1) GB1077042A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117914A2 (en) * 1982-12-09 1984-09-12 Hitachi, Ltd. Circuit breaker having a parallel resistor arrangement
FR2655188A1 (en) * 1989-11-29 1991-05-31 Alsthom Gec HIGH VOLTAGE CIRCUIT BREAKER WITH VARISTORS.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2451011C2 (en) * 1974-10-26 1984-06-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt High-voltage circuit breakers with on and off resistors
JPS5840715A (en) * 1981-09-04 1983-03-09 株式会社東芝 Breaker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117914A2 (en) * 1982-12-09 1984-09-12 Hitachi, Ltd. Circuit breaker having a parallel resistor arrangement
EP0117914A3 (en) * 1982-12-09 1985-01-09 Hitachi, Ltd. Circuit breaker having a parallel resistor arrangement
FR2655188A1 (en) * 1989-11-29 1991-05-31 Alsthom Gec HIGH VOLTAGE CIRCUIT BREAKER WITH VARISTORS.
EP0430123A1 (en) * 1989-11-29 1991-06-05 Gec Alsthom Sa High-tension switch with variators
US5124872A (en) * 1989-11-29 1992-06-23 Gec Alsthom Sa High tension circuit breaker having varistors

Also Published As

Publication number Publication date
CH450523A (en) 1968-01-31
GB1077042A (en) 1967-07-26
DE1515652A1 (en) 1969-12-11

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