GB541941A - Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type - Google Patents

Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type

Info

Publication number
GB541941A
GB541941A GB1046540A GB1046540A GB541941A GB 541941 A GB541941 A GB 541941A GB 1046540 A GB1046540 A GB 1046540A GB 1046540 A GB1046540 A GB 1046540A GB 541941 A GB541941 A GB 541941A
Authority
GB
United Kingdom
Prior art keywords
contact
gas
blast
nozzle
contacts
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
GB1046540A
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.)
ROBERT WILLIAM WILD
A Reyrolle and Co Ltd
Original Assignee
ROBERT WILLIAM WILD
A Reyrolle and 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 ROBERT WILLIAM WILD, A Reyrolle and Co Ltd filed Critical ROBERT WILLIAM WILD
Priority to GB1046540A priority Critical patent/GB541941A/en
Publication of GB541941A publication Critical patent/GB541941A/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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/164—Impedances connected with contacts the impedance being inserted in the circuit by blowing the arc onto an auxiliary electrode

Abstract

541,941. Gas-blast switches. REYROLLE & CO., Ltd., A., and WILD, R. W. June 17, 1940, No. 10465: [Class 38 (v)] In a gas-blast switch in which a resistance H<SP>1</SP> is connected between one of the contacts B and an auxiliary electrode, the latter is an annular ring H surrounding the movable contact F so that a blast of gas through a nozzle D passes the annular space between F, Hand quenches the arc therebetween. In Fig. 1, the switch is of the character set out in Specification 541,940, in which the nozzle is carried or constituted by the main movable contact and is closed by the arcing contact B. The pressuregas, in opening circuit, slides D to the left on to the contact F, so separating the main contacts C, D and opening ports E<SP>2</SP> whereby the pressure acts on piston F<SP>2</SP> to withdraw contact F. The blast through the nozzle sweeps the ionized gases from the main arc into the annular space, between F, H, aided subsequently by passages F' in the contact F itself, causing that space to break down, arc-quenching taking place in the manner usual with resistance-switching. In a modification, Fig. 5 (not shown), contacts C, D are dispensed with and the nozzle is fixed behind the place occupied by the ports.
GB1046540A 1940-06-17 1940-06-17 Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type Expired GB541941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1046540A GB541941A (en) 1940-06-17 1940-06-17 Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1046540A GB541941A (en) 1940-06-17 1940-06-17 Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type

Publications (1)

Publication Number Publication Date
GB541941A true GB541941A (en) 1941-12-18

Family

ID=9968355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1046540A Expired GB541941A (en) 1940-06-17 1940-06-17 Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type

Country Status (1)

Country Link
GB (1) GB541941A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017482A (en) * 1957-07-01 1962-01-16 British Thomson Houston Co Ltd Air or gas blast electric circuit breakers
US3033962A (en) * 1958-04-29 1962-05-08 Westinghouse Electric Corp Circuit interrupters
US3154658A (en) * 1960-10-07 1964-10-27 Westinghouse Electric Corp Circuit interrupter with movable tubular contact as sole vent for interrupting chamber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017482A (en) * 1957-07-01 1962-01-16 British Thomson Houston Co Ltd Air or gas blast electric circuit breakers
US3033962A (en) * 1958-04-29 1962-05-08 Westinghouse Electric Corp Circuit interrupters
US3154658A (en) * 1960-10-07 1964-10-27 Westinghouse Electric Corp Circuit interrupter with movable tubular contact as sole vent for interrupting chamber

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