GB1079779A - High-power compressed-gas electric circuit interrupter - Google Patents

High-power compressed-gas electric circuit interrupter

Info

Publication number
GB1079779A
GB1079779A GB31813/65A GB3181365A GB1079779A GB 1079779 A GB1079779 A GB 1079779A GB 31813/65 A GB31813/65 A GB 31813/65A GB 3181365 A GB3181365 A GB 3181365A GB 1079779 A GB1079779 A GB 1079779A
Authority
GB
United Kingdom
Prior art keywords
gas
blast
contact
circuit
units
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
GB31813/65A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1079779A publication Critical patent/GB1079779A/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
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/80—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve
    • H01H33/82—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid flow of arc-extinguishing fluid from a pressure source being controlled by a valve the fluid being air or gas
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts

Landscapes

  • Circuit Breakers (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

1,079,779. Gas-blast switches. WESTING- HOUSE ELECTRIC CORPORATION. July 26, 1965 [Aug. 24, 1964], No. 31813/65. Heading H2B. A gas-blast circuit-interrupting unit comprises a metal chamber 43 having an apertured end wall 42, a tubular nozzle exhaust 73 and a surrounding stationary contact 74 both secured to the end wall 42, an insulating gas-flow guide 70 forming an extension of the metal chamber, and a tubular venting movable contact 19 movable completely through the insulating member. Compressed gas is supplied to the chamber 43 through a bifurcated gas inlet 110 and exhausts in opposite directions through the contact 19 and through the nozzle 73 and a lateral vent 121. A resistor (not shown) may be connected between an auxiliary contact 95 and the stationary contact 74. The Specification describes a three-pole circuit-breaker having three pairs of the above units housed in an earthed metal tank, the moving contacts 19 of each pair being carried by a conducting crossbar. The -units are carried by bushing insulators and a common high-pressure gas reservoir extends along the top of the tank between the insulators. A common hydraulic, pneumatic or electromagnetic operating mechanism moves the cross-bars and opens the inlet blast valves supplying each pair of interrupting units. The mechanical connection to each blast-valve includes a ratchet and pawl so that the valve is opened should the circuit-breaker trip open before the moving contacts have completed their closing movement.
GB31813/65A 1964-08-24 1965-07-26 High-power compressed-gas electric circuit interrupter Expired GB1079779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US391584A US3358102A (en) 1964-08-24 1964-08-24 High-power compressed-gas circuit interrupter with double-flow contact structure disposed within gas-directing casing

Publications (1)

Publication Number Publication Date
GB1079779A true GB1079779A (en) 1967-08-16

Family

ID=23547194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31813/65A Expired GB1079779A (en) 1964-08-24 1965-07-26 High-power compressed-gas electric circuit interrupter

Country Status (4)

Country Link
US (1) US3358102A (en)
CH (1) CH436422A (en)
DE (1) DE1249972B (en)
GB (1) GB1079779A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3418440A (en) * 1965-09-14 1968-12-24 Gen Electric Gas-blast circuit breaker
US3495057A (en) * 1967-11-06 1970-02-10 Ite Imperial Corp Dual slide valve with lost motion means for gas blast breaker
US3624326A (en) * 1969-04-04 1971-11-30 Westinghouse Electric Corp Compressed-gas circuit breaker with readily removable terminal bushing means

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB575887A (en) * 1944-04-22 1946-03-08 Ferguson Pailin Ltd Improvements in gas blast high voltage electric circuit breakers
CH242105A (en) * 1944-11-20 1946-04-15 Oerlikon Maschf Compressed gas switch with cut-off resistor.
CH243710A (en) * 1945-03-27 1946-07-31 Oerlikon Maschf Gas pressure switch.

Also Published As

Publication number Publication date
US3358102A (en) 1967-12-12
DE1249972B (en)
CH436422A (en) 1967-05-31

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