FR1220038A - Protective device for electric switch and switch provided with said device - Google Patents

Protective device for electric switch and switch provided with said device

Info

Publication number
FR1220038A
FR1220038A FR780986A FR780986A FR1220038A FR 1220038 A FR1220038 A FR 1220038A FR 780986 A FR780986 A FR 780986A FR 780986 A FR780986 A FR 780986A FR 1220038 A FR1220038 A FR 1220038A
Authority
FR
France
Prior art keywords
switch
protective device
electric
electric switch
switch provided
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
FR780986A
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.)
DEVAG ELEK ZITATS GES MIEBACH
Original Assignee
DEVAG ELEK ZITATS GES MIEBACH
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 DEVAG ELEK ZITATS GES MIEBACH filed Critical DEVAG ELEK ZITATS GES MIEBACH
Application granted granted Critical
Publication of FR1220038A publication Critical patent/FR1220038A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0072—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 particular to three-phase switches
FR780986A 1957-12-05 1958-12-05 Protective device for electric switch and switch provided with said device Expired FR1220038A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1220038X 1957-12-05

Publications (1)

Publication Number Publication Date
FR1220038A true FR1220038A (en) 1960-05-20

Family

ID=7733958

Family Applications (1)

Application Number Title Priority Date Filing Date
FR780986A Expired FR1220038A (en) 1957-12-05 1958-12-05 Protective device for electric switch and switch provided with said device

Country Status (1)

Country Link
FR (1) FR1220038A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609837A1 (en) * 1987-01-19 1988-07-22 Merlin Gerin AUTOEXPANSION POLYPHASE CIRCUIT BREAKER EQUIPPED WITH POLE ARRANGED CHAMBER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609837A1 (en) * 1987-01-19 1988-07-22 Merlin Gerin AUTOEXPANSION POLYPHASE CIRCUIT BREAKER EQUIPPED WITH POLE ARRANGED CHAMBER
EP0277848A1 (en) * 1987-01-19 1988-08-10 Merlin Gerin Multiphase circuit breaker with self-expansion having per phase a gas-insulated arc extinguishing chamber
US4816624A (en) * 1987-01-19 1989-03-28 Merlin Gerin Multiphase gas expansion circuit breaker for gas-insulated metalclad cell

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