GB696726A - Improvements relating to gas-blast electric circuit breakers - Google Patents

Improvements relating to gas-blast electric circuit breakers

Info

Publication number
GB696726A
GB696726A GB20416/51A GB2041651A GB696726A GB 696726 A GB696726 A GB 696726A GB 20416/51 A GB20416/51 A GB 20416/51A GB 2041651 A GB2041651 A GB 2041651A GB 696726 A GB696726 A GB 696726A
Authority
GB
United Kingdom
Prior art keywords
units
unit
main
gas
interrupting
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
GB20416/51A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB696726A publication Critical patent/GB696726A/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
    • H01H33/008—Pedestal mounted switch gear combinations
    • 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
    • H01H33/121—Load break switches
    • H01H33/125—Load break switches comprising a separate circuit breaker
    • H01H33/128—Load break switches comprising a separate circuit breaker being operated by a separate mechanism interlocked with the sectionalising mechanism
    • 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
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc

Landscapes

  • Circuit Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)

Abstract

696,726. Gas-blast switches. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Aug. 29, 1951 [Sept. 7, 1950], No. 20416/51. Class 38 (v) In a circuit-breaker having main gas-blast interrupting units 1, 1<SP>1</SP>, mounted on fixed insulating supports 2, 2<SP>1</SP> and a rotatable isolator extending between the units, the rotatable post insulator 6<SP>1</SP> carrying the movable isolator contact element also carries an additional gas-blast interrupting unit 9. In Fig. 2 each interrupter unit 1, 1<SP>1</SP>, 9 has two pairs of cooperating contacts (not shown) in insulating housings 1a, 1b, 9a, 9b 1a<SP>1</SP>, 1b<SP>1</SP> shunted by impedances in insulating housings 4a, 4b, 10a, 10b, 4a<SP>1</SP>, 4b<SP>1</SP>. The movable isolator contact element is in two parts 11a, 11b fixed on the housings 9a, 96 and cooperating with fixed contact elements 7, 7<SP>i</SP> on the housings 1b, 1a<SP>1</SP>. The additional interrupting unit 9 may serve as an additional main interrupting unit which opens simultaneously with the units 1, 1<SP>1</SP>, or it may serve as an auxiliary interrupter opening after the main interrupting units to interrupt or reduce the residual current through the main shunt impedances before the isolating switch contacts are opened. The unit 9 could also perform both functions, in which case one pair of contacts of the interrupter unit are arranged to open with the main interrupter units 1, 1<SP>1</SP>, and the other pair to open later to "break" or reduce the residual current.
GB20416/51A 1950-09-07 1951-08-29 Improvements relating to gas-blast electric circuit breakers Expired GB696726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR696726X 1950-09-07

Publications (1)

Publication Number Publication Date
GB696726A true GB696726A (en) 1953-09-09

Family

ID=9046761

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20416/51A Expired GB696726A (en) 1950-09-07 1951-08-29 Improvements relating to gas-blast electric circuit breakers

Country Status (1)

Country Link
GB (1) GB696726A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060451B (en) * 1954-06-04 1959-07-02 Voigt & Haeffner Ag Compressed air switch with several voltage-carrying compressed air tanks mounted on support insulators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1060451B (en) * 1954-06-04 1959-07-02 Voigt & Haeffner Ag Compressed air switch with several voltage-carrying compressed air tanks mounted on support insulators

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