GB1545395A - Overvoltage protection device for an isolated-neutral-three phase system - Google Patents

Overvoltage protection device for an isolated-neutral-three phase system

Info

Publication number
GB1545395A
GB1545395A GB2140277A GB2140277A GB1545395A GB 1545395 A GB1545395 A GB 1545395A GB 2140277 A GB2140277 A GB 2140277A GB 2140277 A GB2140277 A GB 2140277A GB 1545395 A GB1545395 A GB 1545395A
Authority
GB
United Kingdom
Prior art keywords
neutral
isolated
protection device
overvoltage protection
phase system
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
GB2140277A
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Publication of GB1545395A publication Critical patent/GB1545395A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H3/14—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 occurrence of voltage on parts normally at earth potential
GB2140277A 1976-05-13 1977-05-20 Overvoltage protection device for an isolated-neutral-three phase system Expired GB1545395A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7614402A FR2351526A1 (en) 1976-05-13 1976-05-13 PROTECTION DEVICE AGAINST OVERVOLTAGES OF A NEUTRAL INSULATED NETWORK

Publications (1)

Publication Number Publication Date
GB1545395A true GB1545395A (en) 1979-05-10

Family

ID=9173072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2140277A Expired GB1545395A (en) 1976-05-13 1977-05-20 Overvoltage protection device for an isolated-neutral-three phase system

Country Status (4)

Country Link
BE (1) BE854765A (en)
DE (1) DE2725168A1 (en)
FR (1) FR2351526A1 (en)
GB (1) GB1545395A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419625A1 (en) * 1978-03-07 1979-10-05 Labo Cent Telecommunicat Overvoltage protector for telephone subscriber equipment - has each line grounded by triac controlled by back-to-back Zener diode
FR2927908B1 (en) * 2008-02-25 2010-02-26 Ecl CHECKING THE ISOLATION OF THE INTERVENTION UNITS USED IN AN ELECTROLYSIS ROOM FOR THE PRODUCTION OF ALUMINUM BY IGNEE ELECTROLYSIS.
ES2403579B1 (en) * 2011-11-14 2014-05-27 Salvador Borja Baixauli SECURITY MEANS IN THE ELECTRICAL NETWORK

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1435511A (en) * 1965-05-29 1966-04-15 Principle of earth fault monitoring for an alternating current network with non-distributed neutral
FR1460049A (en) * 1965-10-14 1966-06-17 Comp Generale Electricite Surge protection device
FR2059590B1 (en) * 1969-08-19 1973-01-12 Balteau Usines

Also Published As

Publication number Publication date
DE2725168C2 (en) 1987-08-27
FR2351526B1 (en) 1979-05-04
DE2725168A1 (en) 1978-12-14
BE854765A (en) 1977-11-17
FR2351526A1 (en) 1977-12-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee