GB1525229A - High-voltage circuit-interrupters - Google Patents

High-voltage circuit-interrupters

Info

Publication number
GB1525229A
GB1525229A GB4265474A GB4265474A GB1525229A GB 1525229 A GB1525229 A GB 1525229A GB 4265474 A GB4265474 A GB 4265474A GB 4265474 A GB4265474 A GB 4265474A GB 1525229 A GB1525229 A GB 1525229A
Authority
GB
United Kingdom
Prior art keywords
sliding contact
blast
fluid
contact
arc
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
GB4265474A
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.)
Reyrolle Parsons Ltd
Original Assignee
Reyrolle Parsons 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 Reyrolle Parsons Ltd filed Critical Reyrolle Parsons Ltd
Priority to GB4265474A priority Critical patent/GB1525229A/en
Priority to IT51559/75A priority patent/IT1047627B/en
Priority to US05/618,249 priority patent/US4086461A/en
Priority to CA236,759A priority patent/CA1042493A/en
Priority to CH1275275A priority patent/CH599672A5/xx
Priority to FR7530032A priority patent/FR2287100A1/en
Priority to DE19752543845 priority patent/DE2543845A1/en
Priority to JP50118735A priority patent/JPS5185471A/en
Publication of GB1525229A publication Critical patent/GB1525229A/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
    • H01H33/12—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
    • H01H33/70—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
    • H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
    • 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
    • H01H33/7053—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 having a bridging element around two hollow tubular 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
    • H01H33/70—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

Landscapes

  • Circuit Breakers (AREA)

Abstract

1525229 Fluid-blast circuit interrupter REYROLLE PARSONS Ltd 30 Sept 1975 [1 Oct 1974 31 Jan 1975] 42654/74 and 4317/75 Heading H1N A fluid-blast circuit interrupter comprises a pair of tubular contact members 10 and 11 one of which 10 carries a sliding contact 18 to bridge the gap between them and also act as a valve to allow a blast of pressurized fluid into the gap when it is moved out of contact with the member 11. Arcing contacts 14, 16 are provided within the tubular members at least one of these 16 being arranged to move and draw an arc after the sliding contact 18 has opened so that a blast of pressurized fluid, e.g. SF6, will be directed on to the arc and will subsequently remove the arcing products, e.g. through the interior of the hollow members and out through filters. The arcing contacts are preferably provided with arc-resistant tips and the fixed tubular members have insulating arc resistant nozzles the internal bores of which diverge downstream of the blast to improve electric field strength. The gas blast may be provided by a buffer-type piston coupled to sliding contact 18, or by various forms of separate pressurizing arrangements. The sliding contact is preferably an insulating tube containing contact fingers 19 of conductive material. The insulating nozzles 12, 13 may contain venting holes. The opening and closing of the contacts may be effected by a linkage including a lost-motion connection so that the sliding contact 18 will open before the opening of the arcing contacts commences. (Fig. 1A, not shown). Several units, arranged in series in a fluid filled housing may be coupled to a common actuator and the operating rod for each unit may also carry a valve to allow pressurized fluid to enter at the appropriate movement (Fig. 1, not shown). It is stated that this fluid could be a liquid, e.g. oil. In an alternative embodiment (Figs. 5 and 6, not shown) the ends of the tubular fixed contact members are formed with outer cylindrical sleeves having projecting finger portions to take the arcing, which occurs when the sliding contact is withdrawn, and so avoid damaging valve sealing rings provided in channels on the inner surface of the sliding contact. In this embodiment the insulating nozzles are lengthened and are of PTFE to improve dielectric characteristics without lengthening the gap opening.
GB4265474A 1974-10-01 1974-10-01 High-voltage circuit-interrupters Expired GB1525229A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB4265474A GB1525229A (en) 1974-10-01 1974-10-01 High-voltage circuit-interrupters
IT51559/75A IT1047627B (en) 1974-10-01 1975-09-29 IMPROVEMENT IN RI SWITCHES FOR HIGH VOLTAGES
US05/618,249 US4086461A (en) 1974-10-01 1975-09-30 High-voltage circuit-interrupters
CA236,759A CA1042493A (en) 1974-10-01 1975-09-30 High voltage gas blast circuit interrupter
CH1275275A CH599672A5 (en) 1974-10-01 1975-10-01
FR7530032A FR2287100A1 (en) 1974-10-01 1975-10-01 HIGH VOLTAGE ELECTRIC CIRCUIT BREAKER
DE19752543845 DE2543845A1 (en) 1974-10-01 1975-10-01 HIGH VOLTAGE SWITCHGEAR
JP50118735A JPS5185471A (en) 1974-10-01 1975-10-01 Kodenatsukairodanzokuki

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4265474A GB1525229A (en) 1974-10-01 1974-10-01 High-voltage circuit-interrupters

Publications (1)

Publication Number Publication Date
GB1525229A true GB1525229A (en) 1978-09-20

Family

ID=10425388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4265474A Expired GB1525229A (en) 1974-10-01 1974-10-01 High-voltage circuit-interrupters

Country Status (1)

Country Link
GB (1) GB1525229A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341903A1 (en) * 1983-10-28 1985-05-23 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau HIGH VOLTAGE CIRCUIT BREAKERS
DE3413962A1 (en) * 1984-02-23 1985-08-29 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau HIGH VOLTAGE SWITCH
DE102013217337A1 (en) * 2013-08-30 2015-03-05 Siemens Aktiengesellschaft High voltage circuit breaker
CN114758921A (en) * 2021-12-23 2022-07-15 平高集团有限公司 Arc extinguish chamber and circuit breaker using same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341903A1 (en) * 1983-10-28 1985-05-23 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau HIGH VOLTAGE CIRCUIT BREAKERS
DE3413962A1 (en) * 1984-02-23 1985-08-29 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau HIGH VOLTAGE SWITCH
DE102013217337A1 (en) * 2013-08-30 2015-03-05 Siemens Aktiengesellschaft High voltage circuit breaker
CN114758921A (en) * 2021-12-23 2022-07-15 平高集团有限公司 Arc extinguish chamber and circuit breaker using same
CN114758921B (en) * 2021-12-23 2024-03-26 平高集团有限公司 Explosion chamber and use circuit breaker of this explosion chamber

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee