GB1163557A - Fluid-blast circuit interrupter with improved electromagnetic driving means - Google Patents

Fluid-blast circuit interrupter with improved electromagnetic driving means

Info

Publication number
GB1163557A
GB1163557A GB30087/67A GB3008767A GB1163557A GB 1163557 A GB1163557 A GB 1163557A GB 30087/67 A GB30087/67 A GB 30087/67A GB 3008767 A GB3008767 A GB 3008767A GB 1163557 A GB1163557 A GB 1163557A
Authority
GB
United Kingdom
Prior art keywords
piston
contacts
rods
bar
coil
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
GB30087/67A
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 GB1163557A publication Critical patent/GB1163557A/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
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/882—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts the movement being assisted by accelerating coils
    • 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

Abstract

1,163,557. Fluid-blast switches. WESTINGHOUSE ELECTRIC CORP. 29 June, 1967 [1 Sept., 1966], No. 30087/67. Heading HlN. A fluid blast switch has a piston 9 movable in a cylinder 10 to cause the blast and carrying a movable contact 7 and an insulating blast directing nozzle 18, a pair of electromagnetic coils 13, 52 being mounted respectively in the piston 9 and cylinder head 12 and connected together, by way of piston-rods, so as to be energized during interruption so as to assist the driving movement of piston 9. The piston 9 is attached to two piston-rods 24, 40, the coil 13 being connected between rod 40 and an insulated core 20 of rod 40. The rods 24, 40 are joined by a conducting member 44 coupled with lost motion 46 to a cross-bar 25 which is coupled by links (Fig. 1, not shown) to an operating mechanism. The coil 52 is connected between core 20 and a line terminal L2. The lower ends of core 20 and rod 24 carry contacts 21, 37 which are bridged by contacts 22, 37 on cross-bar 25 to short coil 13 in the closed position; in addition a fixed contact 57 connected to L2 engages conducting member 44 to short both coils. During opening, the initial movement of cross-bar 25 separates contacts 21, 22, 35, 37 and then moves member 44 away from contact 57 to insert the coils 13, 52 into series with the main contacts 6, 7. Further movement of member 44, the attached rods 24, 40 and piston 9 is then assisted by the attraction between the coils. During closing, initial movement of cross-bar 25 closes contacts 21, 22, 35, 37 and coil 13 is therefore shorted and inoperative. The switch is mounted in an envelope filled with compressed gas such as SFg.
GB30087/67A 1966-09-01 1967-06-29 Fluid-blast circuit interrupter with improved electromagnetic driving means Expired GB1163557A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57661566A 1966-09-01 1966-09-01

Publications (1)

Publication Number Publication Date
GB1163557A true GB1163557A (en) 1969-09-10

Family

ID=24305189

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30087/67A Expired GB1163557A (en) 1966-09-01 1967-06-29 Fluid-blast circuit interrupter with improved electromagnetic driving means

Country Status (2)

Country Link
US (1) US3524957A (en)
GB (1) GB1163557A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3621171A (en) * 1968-05-06 1971-11-16 Hitachi Ltd Gas blast circuit breaker with puffer piston having an electrodynamic assist in the form of axially overlapping coils
US4383150A (en) * 1978-09-12 1983-05-10 Westinghouse Electric Corp. Circuit-interrupters having shunting capacitance around the separable power contacts with capacitance disconnecting means therefor

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR828466A (en) * 1937-01-28 1938-05-18 Alsthom Cgee Improvement in switches, arc blowing by gas under pressure, operating as self-compressors
US2503243A (en) * 1945-12-11 1950-04-11 Cohen Albert Electrodynamic relay
US2933575A (en) * 1956-10-22 1960-04-19 Westinghouse Electric Corp Circuit interrupters
US2930870A (en) * 1958-04-24 1960-03-29 Siemens Ag High speed switch
DE1142201B (en) * 1959-11-28 1963-01-10 Fuji Electric Co Ltd Quick switch
AT235384B (en) * 1961-08-25 1964-08-25 Sprecher & Schuh Ag Compressed gas switch with current-dependent extinguishing agent flow
DE1190079B (en) * 1963-03-28 1965-04-01 Siemens Ag Electric switch
DE1206056B (en) * 1963-09-12 1965-12-02 Siemens Ag Electric switch
US3315056A (en) * 1964-09-10 1967-04-18 Fuji Electric Co Ltd Gas blast circuit breaker with electromagnetic contact actuating means

Also Published As

Publication number Publication date
US3524957A (en) 1970-08-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees