GB524983A - Improvements in and relating to gas blast electric switches - Google Patents

Improvements in and relating to gas blast electric switches

Info

Publication number
GB524983A
GB524983A GB696/39A GB69639A GB524983A GB 524983 A GB524983 A GB 524983A GB 696/39 A GB696/39 A GB 696/39A GB 69639 A GB69639 A GB 69639A GB 524983 A GB524983 A GB 524983A
Authority
GB
United Kingdom
Prior art keywords
gas
contact
circuit
extinguishing
jan
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
GB696/39A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB524983A publication Critical patent/GB524983A/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
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7038—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by a conducting tubular gas flow enhancing nozzle

Abstract

524,983. Gas-blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 9, 1939, No. 696. Convention date, Jan. 7, 1938. [Class 38 (v)] In a gas-blast circuit-breaker with a movable extinguishing head which provides an air isolating break subsequent to arc extinction, the construction is such that gas is expelled in the same direction as that in which the head moves to open the circuit. In the example shown in the Figure, a contact 1 is connected through an intermediate contact 6, which is adapted to slide in an insulating extinguishing head 8 attached to the end of a switch arm 4 carrying pressure gas to the contacts, to a contact 2. On operation of arm 4 the pressure gas is supplied thus maintaining, under action of piston 7, the contacts 1 and 6 in contact and breaking the circuit between 6 and 2. The extinguishing gas escapes through 2 which is hollow. Specifications 432,453 450.245, and 483,996 are referred to.
GB696/39A 1938-01-07 1939-01-09 Improvements in and relating to gas blast electric switches Expired GB524983A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE209017X 1938-01-07

Publications (1)

Publication Number Publication Date
GB524983A true GB524983A (en) 1940-08-20

Family

ID=5794547

Family Applications (2)

Application Number Title Priority Date Filing Date
GB696/39A Expired GB524983A (en) 1938-01-07 1939-01-09 Improvements in and relating to gas blast electric switches
GB24060/39A Expired GB532201A (en) 1938-01-07 1939-08-21

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB24060/39A Expired GB532201A (en) 1938-01-07 1939-08-21

Country Status (2)

Country Link
CH (1) CH209017A (en)
GB (2) GB524983A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214545A (en) * 1961-04-11 1965-10-26 Westinghouse Electric Corp Fluid-blast circuit interrupters with pressure-actuated fluid directors
US3497653A (en) * 1966-12-02 1970-02-24 Westinghouse Electric Corp Fluid-blast circuit interrupters with extensible movable fluid-directing nozzle
US3836741A (en) * 1967-11-06 1974-09-17 Ite Imperial Corp Adjustable contact nozzle and retractable arcing chamber for gas blast circuit breakers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214545A (en) * 1961-04-11 1965-10-26 Westinghouse Electric Corp Fluid-blast circuit interrupters with pressure-actuated fluid directors
US3497653A (en) * 1966-12-02 1970-02-24 Westinghouse Electric Corp Fluid-blast circuit interrupters with extensible movable fluid-directing nozzle
US3836741A (en) * 1967-11-06 1974-09-17 Ite Imperial Corp Adjustable contact nozzle and retractable arcing chamber for gas blast circuit breakers

Also Published As

Publication number Publication date
GB532201A (en) 1941-01-20
CH209017A (en) 1940-03-15

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