GB1333685A - High voltage circuit breaker and method of increasing impedance in a high voltage circuit breaker - Google Patents

High voltage circuit breaker and method of increasing impedance in a high voltage circuit breaker

Info

Publication number
GB1333685A
GB1333685A GB761472A GB761472A GB1333685A GB 1333685 A GB1333685 A GB 1333685A GB 761472 A GB761472 A GB 761472A GB 761472 A GB761472 A GB 761472A GB 1333685 A GB1333685 A GB 1333685A
Authority
GB
United Kingdom
Prior art keywords
switch
high voltage
voltage circuit
circuit breaker
triggered
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
GB761472A
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.)
Raytheon Co
Original Assignee
Hughes Aircraft 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.)
Filing date
Publication date
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of GB1333685A publication Critical patent/GB1333685A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc

Abstract

1333685 Arc extinction in switches HUGHES AIRCRAFT CO 18 Feb 1972 [9 March 1971] 7614/72 Heading H1N A high voltage circuit-breaker comprises a line switch 50 and an impedance-increasing means 52 in parallel with the switch 50, the means 52 including an energy-absorbing resistor 58 in series with a cyclically-operable switch 56 which is operated so as to provide an increasing ratio of off to on time, and a parallel capacitor 54 to limit the rate of voltage rise upon opening of the switch. The line switch 50 may be a conventional circuit-breaker, or a vacuum switch with a circuit to provide an artificial current zero as in Specification 1,332,777. The switch 56 may be a crossed field switch as indicated, a parallel capacitor 60 being provided to enable switching off at rising high voltages. In other arrangements, the switch 56 may be formed by two triggered vacuum gap devices, Fig. 7 (not shown), two triggered vacuum gap devices and a triggered spark gap, Fig. 8 (not shown), or a crossed field switch in combination with a triggered vacuum gap device, Fig. 9 (not shown). Fig. 1 (not shown) illustrates a high voltage D.C. system using two D.C. circuitbreakers.
GB761472A 1971-03-09 1972-02-18 High voltage circuit breaker and method of increasing impedance in a high voltage circuit breaker Expired GB1333685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12239671A 1971-03-09 1971-03-09

Publications (1)

Publication Number Publication Date
GB1333685A true GB1333685A (en) 1973-10-10

Family

ID=22402474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB761472A Expired GB1333685A (en) 1971-03-09 1972-02-18 High voltage circuit breaker and method of increasing impedance in a high voltage circuit breaker

Country Status (3)

Country Link
US (1) US3657607A (en)
CA (1) CA938712A (en)
GB (1) GB1333685A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390892A1 (en) 2010-05-24 2011-11-30 GE Aviation Systems Limited Electromagnetic circuit interrupter

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750061A (en) * 1972-05-22 1973-07-31 Hughes Aircraft Co High-speed switch device
US3995198A (en) * 1973-05-14 1976-11-30 Licentia Patent-Verwaltungs-G.M.B.H. High voltage circuit breaker
US3912975A (en) * 1974-07-15 1975-10-14 Hughes Aircraft Co Impedance-increasing system and in-line device therefor
US5198745A (en) * 1991-08-08 1993-03-30 Electric Power Research Institute Dynamic braking resistor system
GB2389250B (en) * 2002-05-31 2005-12-21 Bowman Power Systems Ltd High-frequency generator
JP5265063B1 (en) * 2012-09-05 2013-08-14 三菱電機株式会社 DC circuit breaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH312401A (en) * 1953-03-25 1955-12-31 Fkg Ag Method for creating favorable switch-off conditions for an electrical switch
US3198986A (en) * 1962-07-12 1965-08-03 Joslyn Mfg & Supply Co High voltage switching apparatus
US3534226A (en) * 1967-11-09 1970-10-13 Hughes Aircraft Co Sequential switching circuit breaker for high power ac or dc power transmission circuits

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2390892A1 (en) 2010-05-24 2011-11-30 GE Aviation Systems Limited Electromagnetic circuit interrupter
US8564389B2 (en) 2010-05-24 2013-10-22 Ge Aviation Systems Limited Electromagnetic circuit interrupter

Also Published As

Publication number Publication date
US3657607A (en) 1972-04-18
CA938712A (en) 1973-12-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee