GB2018535A – Protective circuit for zinc oxide varistor
– Google Patents
GB2018535A – Protective circuit for zinc oxide varistor
– Google Patents
Protective circuit for zinc oxide varistor
Info
Publication number
GB2018535A
GB2018535A
GB7911628A
GB7911628A
GB2018535A
GB 2018535 A
GB2018535 A
GB 2018535A
GB 7911628 A
GB7911628 A
GB 7911628A
GB 7911628 A
GB7911628 A
GB 7911628A
GB 2018535 A
GB2018535 A
GB 2018535A
Authority
GB
United Kingdom
Prior art keywords
zinc oxide
protective circuit
oxide varistor
varistor
protective
Prior art date
1978-04-10
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.)
Granted
Application number
GB7911628A
Other versions
GB2018535B
(en
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.)
General Electric Co
Original Assignee
General Electric Co
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.)
1978-04-10
Filing date
1979-04-03
Publication date
1979-10-17
1979-04-03
Application filed by General Electric Co
filed
Critical
General Electric Co
1979-10-17
Publication of GB2018535A
publication
Critical
patent/GB2018535A/en
1982-07-28
Application granted
granted
Critical
1982-07-28
Publication of GB2018535B
publication
Critical
patent/GB2018535B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
H02H7/16—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 capacitors
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
GB7911628A
1978-04-10
1979-04-03
Protective circuit for zinc oxide varistor
Expired
GB2018535B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US05/894,529
US4174529A
(en)
1978-04-10
1978-04-10
Protective circuit for zinc oxide varistors
Publications (2)
Publication Number
Publication Date
GB2018535A
true
GB2018535A
(en)
1979-10-17
GB2018535B
GB2018535B
(en)
1982-07-28
Family
ID=25403199
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7911628A
Expired
GB2018535B
(en)
1978-04-10
1979-04-03
Protective circuit for zinc oxide varistor
Country Status (8)
Country
Link
US
(1)
US4174529A
(en)
BR
(1)
BR7902263A
(en)
DE
(1)
DE2914267A1
(en)
FR
(1)
FR2423078B1
(en)
GB
(1)
GB2018535B
(en)
IT
(1)
IT1166722B
(en)
MX
(1)
MX146364A
(en)
SE
(1)
SE7903056L
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US7728709B2
(en)
2001-08-02
2010-06-01
Epcos Ag
Electroceramic component
Families Citing this family (13)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4259704A
(en)
*
1979-04-20
1981-03-31
General Electric Company
Protective circuit for zinc oxide varistors
US4295174A
(en)
*
1979-05-29
1981-10-13
Westinghouse Electric Corp.
Multi-series group capacitor bank protection equipment
SE426895B
(en)
*
1981-07-06
1983-02-14
Asea Ab
PROTECTOR FOR A SERIES CONDENSOR IN A HIGH VOLTAGE NETWORK
US4482930A
(en)
*
1982-06-11
1984-11-13
Westinghouse Electric Corp.
Electrical protection equipment with digital integration apparatus for firing pulse initiation
SE449151B
(en)
*
1983-06-17
1987-04-06
Asea Ab
PROTECTIVE DEVICE FOR A SERIES CONDENSER
CA1256937A
(en)
*
1985-04-11
1989-07-04
Philip Chadwick
Zinc oxide stack overvoltage protection against temperature rise and thermal runaway
SE451520B
(en)
*
1985-05-13
1987-10-12
Asea Ab
PROTECTIVE DEVICE FOR A SERIES CONDENSOR BATTERY
US4675771A
(en)
*
1985-07-26
1987-06-23
Combined Technologies, Inc.
Fault sensing system for a transformer network
SE460323B
(en)
*
1988-02-15
1989-09-25
Asea Brown Boveri
Series capacitor EQUIPMENT
DE4141142C1
(en)
*
1991-12-13
1993-04-08
Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De
US5617288A
(en)
*
1995-06-05
1997-04-01
Leviton Manufacturing Co., In.
Automatic surge suppressor disconnect protection system
DE102010008973B4
(en)
*
2010-02-24
2015-11-05
Maschinenfabrik Reinhausen Gmbh
Step switch of the hybrid type with semiconductor switching elements
CN103248036A
(en)
*
2013-05-15
2013-08-14
成都市宏山科技有限公司
Turn-on anti-surge protector for radio interface
Family Cites Families (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CH213121A
(en)
*
1939-06-12
1941-01-15
Haefely & Cie Ag Emil
Circuit arrangement for protecting a capacitor provided in an electrical line system.
US2363898A
(en)
*
1940-10-26
1944-11-28
Gen Electric
Protective system
US3319121A
(en)
*
1965-03-08
1967-05-09
Gen Electric
Means comprising a triggered vacuum circuit interrupter for protection against overvoltages
US3581264A
(en)
*
1969-04-21
1971-05-25
Dale Electronics
Method of creating variable electrical resistance and means for creating the same
DE1936552C3
(en)
*
1969-07-18
1974-10-24
Brown, Boveri & Cie Ag, 6800 Mannheim
Measurement method for measuring the contact burn-off of high-voltage circuit breakers that occurs when switching off
US3619721A
(en)
*
1970-06-01
1971-11-09
Gen Electric
Triggered vacuum gap keep-alive circuit
US3693053A
(en)
*
1971-10-29
1972-09-19
Gen Electric
Metal oxide varistor polyphase transient voltage suppression
US3883782A
(en)
*
1974-05-31
1975-05-13
Robert W Beckwith
Overcurrent relay circuit
DE2634479A1
(en)
*
1976-07-31
1978-02-02
Schiederwerk Schieder Kg K
Varistor with protective device against overheating – uses springy strip which short-circuits varistor when it reaches specified temp.
1978
1978-04-10
US
US05/894,529
patent/US4174529A/en
not_active
Expired – Lifetime
1979
1979-04-03
IT
IT21516/79A
patent/IT1166722B/en
active
1979-04-03
GB
GB7911628A
patent/GB2018535B/en
not_active
Expired
1979-04-05
SE
SE7903056A
patent/SE7903056L/en
not_active
Application Discontinuation
1979-04-09
DE
DE19792914267
patent/DE2914267A1/en
active
Granted
1979-04-10
FR
FR7909023A
patent/FR2423078B1/en
not_active
Expired
1979-04-10
MX
MX177254A
patent/MX146364A/en
unknown
1979-04-10
BR
BR7902263A
patent/BR7902263A/en
unknown
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US7728709B2
(en)
2001-08-02
2010-06-01
Epcos Ag
Electroceramic component
Also Published As
Publication number
Publication date
SE7903056L
(en)
1979-10-11
GB2018535B
(en)
1982-07-28
IT7921516D0
(en)
1979-04-03
FR2423078A1
(en)
1979-11-09
IT1166722B
(en)
1987-05-06
DE2914267C2
(en)
1989-08-31
DE2914267A1
(en)
1979-10-18
MX146364A
(en)
1982-06-16
FR2423078B1
(en)
1985-06-07
BR7902263A
(en)
1979-12-11
US4174529A
(en)
1979-11-13
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Circuit protector
Legal Events
Date
Code
Title
Description
1991-06-19
746
Register noted ‘licences of right’ (sect. 46/1977)
1999-04-28
PE20
Patent expired after termination of 20 years
Effective date:
19990402
