GB784373A - Improvements in fluid-blast electric switches - Google Patents

Improvements in fluid-blast electric switches

Info

Publication number
GB784373A
GB784373A GB3342455A GB3342455A GB784373A GB 784373 A GB784373 A GB 784373A GB 3342455 A GB3342455 A GB 3342455A GB 3342455 A GB3342455 A GB 3342455A GB 784373 A GB784373 A GB 784373A
Authority
GB
United Kingdom
Prior art keywords
fluid
piston
contacts
pump chamber
blast
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
GB3342455A
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.)
Calor Emag AG
Original Assignee
Calor Emag AG
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 Calor Emag AG filed Critical Calor Emag AG
Publication of GB784373A publication Critical patent/GB784373A/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
    • H01H33/90—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 this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/92—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 this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being liquid, e.g. oil

Abstract

784,373. - Fluid-blast switches. CALOREMAG ELEKTRIZITATS AKT.-GES. Nov. 22, 1955 [Nov. 25, 1954], No. 33424/55. Class 38(5). A fluid-blast switch has a main piston 11 movable in a main pump chamber 20 to force a blast of fluid between the switch contacts 5, 7 when they are opened and an auxiliary pumping device operable when the contacts are closed to pump fluid into the pump chamber to ensure the rapid refilling of the pump chamber. The auxiliary pumping device may comprise a piston 14 secured to the movable hollow contact rod 5 and movable in a cylinder 13 formed as a continuation of the main pump chamber. The piston 14 is provided with passages 15 and a disc valve 16 which closes under fluid pressure when the rod 5 and piston 14 are moved downwards during a closing operation. A transverse dividing wall 18 between the chamber 20 and the cylinder 13 has a disc valve 19 which closes when the contacts are opened. The main piston 11 is moved with lost motion when the contacts are opened or closed by a member 12 secured to the rod 5. Specification 735,934 is referred to.
GB3342455A 1954-11-25 1955-11-22 Improvements in fluid-blast electric switches Expired GB784373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC10318A DE1029450B (en) 1954-11-25 1954-11-25 Electrical extinguishing chamber switch with pump piston

Publications (1)

Publication Number Publication Date
GB784373A true GB784373A (en) 1957-10-09

Family

ID=7014729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3342455A Expired GB784373A (en) 1954-11-25 1955-11-22 Improvements in fluid-blast electric switches

Country Status (5)

Country Link
CH (1) CH336482A (en)
DE (1) DE1029450B (en)
FR (1) FR1135160A (en)
GB (1) GB784373A (en)
NL (2) NL97245C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083388B (en) * 1958-10-09 1960-06-15 Licentia Gmbh High-voltage outdoor support for high-voltage switches
US3218420A (en) * 1961-10-04 1965-11-16 Asea Ab Arc-extinguishing circuit breaker with enclosed gas space

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1272157A (en) * 1960-08-12 1961-09-22 Forges Ateliers Const Electr Improvements to low oil volume circuit breakers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE264933C (en) * 1914-04-01
DE663423C (en) * 1935-05-17 1938-08-05 Studiengesellschaft Fuer Hochl Circuit breaker with arc extinguishing by a liquid flow
US2572406A (en) * 1948-09-02 1951-10-23 Stulz Charles High-voltage oil circuit breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083388B (en) * 1958-10-09 1960-06-15 Licentia Gmbh High-voltage outdoor support for high-voltage switches
US3218420A (en) * 1961-10-04 1965-11-16 Asea Ab Arc-extinguishing circuit breaker with enclosed gas space

Also Published As

Publication number Publication date
NL97245C (en)
NL201631A (en)
DE1029450B (en) 1958-05-08
CH336482A (en) 1959-02-28
FR1135160A (en) 1957-04-25

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