IT1166722B - Circuito protettivo per varistori ad ossido di zinco - Google Patents

Circuito protettivo per varistori ad ossido di zinco

Info

Publication number
IT1166722B
IT1166722B IT21516/79A IT2151679A IT1166722B IT 1166722 B IT1166722 B IT 1166722B IT 21516/79 A IT21516/79 A IT 21516/79A IT 2151679 A IT2151679 A IT 2151679A IT 1166722 B IT1166722 B IT 1166722B
Authority
IT
Italy
Prior art keywords
zinc oxide
protective circuit
oxide varistors
varistors
protective
Prior art date
Application number
IT21516/79A
Other languages
English (en)
Other versions
IT7921516A0 (it
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT7921516A0 publication Critical patent/IT7921516A0/it
Application granted granted Critical
Publication of IT1166722B publication Critical patent/IT1166722B/it

Links

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Thermistors And Varistors (AREA)
IT21516/79A 1978-04-10 1979-04-03 Circuito protettivo per varistori ad ossido di zinco IT1166722B (it)

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
IT7921516A0 IT7921516A0 (it) 1979-04-03
IT1166722B true IT1166722B (it) 1987-05-06

Family

ID=25403199

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21516/79A IT1166722B (it) 1978-04-10 1979-04-03 Circuito protettivo per varistori ad ossido di zinco

Country Status (8)

Country Link
US (1) US4174529A (it)
BR (1) BR7902263A (it)
DE (1) DE2914267A1 (it)
FR (1) FR2423078B1 (it)
GB (1) GB2018535B (it)
IT (1) IT1166722B (it)
MX (1) MX146364A (it)
SE (1) SE7903056L (it)

Families Citing this family (14)

* 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 (sv) * 1981-07-06 1983-02-14 Asea Ab Skyddsanordning for en seriekondensator i ett hogspenningsnet
US4482930A (en) * 1982-06-11 1984-11-13 Westinghouse Electric Corp. Electrical protection equipment with digital integration apparatus for firing pulse initiation
SE449151B (sv) * 1983-06-17 1987-04-06 Asea Ab Skyddsanordning for en seriekondensator
CA1256937A (en) * 1985-04-11 1989-07-04 Philip Chadwick Zinc oxide stack overvoltage protection against temperature rise and thermal runaway
SE451520B (sv) * 1985-05-13 1987-10-12 Asea Ab Skyddsanordning for ett seriekondensatorbatteri
US4675771A (en) * 1985-07-26 1987-06-23 Combined Technologies, Inc. Fault sensing system for a transformer network
SE460323B (sv) * 1988-02-15 1989-09-25 Asea Brown Boveri Seriekondensatorutrustning
DE4141142C1 (it) * 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
DE10137873C1 (de) 2001-08-02 2002-10-17 Epcos Ag Elektrokeramisches Bauelement
DE102010008973B4 (de) * 2010-02-24 2015-11-05 Maschinenfabrik Reinhausen Gmbh Stufenschalter des Hybridtyps mit Halbleiterschaltelementen
CN103248036A (zh) * 2013-05-15 2013-08-14 成都市宏山科技有限公司 收音机接口的开机防浪涌保护器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH213121A (de) * 1939-06-12 1941-01-15 Haefely & Cie Ag Emil Schaltungsanordnung zum Schutze eines in einem elektrischen Leitungssystem vorgesehenen Kondensators.
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 (de) * 1969-07-18 1974-10-24 Brown, Boveri & Cie Ag, 6800 Mannheim Meßverfahren zur Messung des bei Ausschaltungen entstehenden Schaltstückabbrandes von Hochspannungsleistungsschaltern
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 (de) * 1976-07-31 1978-02-02 Schiederwerk Schieder Kg K Varistor mit schutzvorrichtung gegen thermische ueberlastung

Also Published As

Publication number Publication date
FR2423078B1 (fr) 1985-06-07
GB2018535B (en) 1982-07-28
GB2018535A (en) 1979-10-17
DE2914267C2 (it) 1989-08-31
SE7903056L (sv) 1979-10-11
FR2423078A1 (fr) 1979-11-09
MX146364A (es) 1982-06-16
IT7921516A0 (it) 1979-04-03
US4174529A (en) 1979-11-13
BR7902263A (pt) 1979-12-11
DE2914267A1 (de) 1979-10-18

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950426