US3590191A - Liquid high-tension switch with tubelike electric arc-quenching channels - Google Patents

Liquid high-tension switch with tubelike electric arc-quenching channels Download PDF

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Publication number
US3590191A
US3590191A US757044A US3590191DA US3590191A US 3590191 A US3590191 A US 3590191A US 757044 A US757044 A US 757044A US 3590191D A US3590191D A US 3590191DA US 3590191 A US3590191 A US 3590191A
Authority
US
United States
Prior art keywords
contact member
movable contact
circuit breaker
stationary
quenching
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 - Lifetime
Application number
US757044A
Other languages
English (en)
Inventor
Dieter Kind
Erwin Marx
Jurgen Salge
Klaus Mollenhoff
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19671640720 external-priority patent/DE1640720C/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3590191A publication Critical patent/US3590191A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H33/80—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
    • H01H33/83—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 wherein the contacts are opened by the flow of air or gas
    • 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
    • H01H33/14—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • 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
    • H01H33/7046—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 special gas flow directing elements, e.g. grooves, extensions

Definitions

  • the movable contact member 1 is in the cutoff position or the second of two operational positions. In this position, it is under the influence of a spring 2 which, upon completion of the intake of quenching medium, returns it to the switch-on position, or the first of the two operational positions, there to make contact with the stationary contact members, switching components 3 and 4.
  • the quenching medium flows for a short time after the signal for cutoff is given, via a nozzle-type bore 5.
  • the quenching medium flows into the switching path and pushes the movable contact member 1 against the force of spring 2.
  • the movable contact member is so constructed that, upon being moved away from the contact point 18, the contact fingers 17 further provide contacts at point I9. Since it is at the point 19 that the electric arc is initiated, this arrangement has the advantage of protecting against the premature wearing out of contact points 18, which carry continuous current, by the generated electric arc. All other portions of the quenching chamber correspond to those of FIG. 1.
  • This form of the movable contact member I provides a make-before-break contact member. By this term is meant a contact which is so designed that the contacting surface, which serves to transmit the continuous or operating current, is not touched by the electric arc and is protected against damage.
  • the electric arc is produced, both during switching on and switching off, at a point which protrudes above the above-mentioned contacting surface. This point is to have a shorter distance from the fixed counter contact during the switchingon and switching-off movements than the continuous current contact surface, so that the electric are always tends to jump over at this shorter point.
  • Circuit breaker as defined in claim 2 wherein the cross sections of said outlet channels increase in the direction away from where said electric arcs originate and in the direction of the flow of said quenching liquid.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Circuit Breakers (AREA)
US757044A 1967-08-31 1968-09-03 Liquid high-tension switch with tubelike electric arc-quenching channels Expired - Lifetime US3590191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671640720 DE1640720C (de) 1967-08-31 1967-08-31 Elektrischer strombegrenzender Flüssigkeitsschalter

Publications (1)

Publication Number Publication Date
US3590191A true US3590191A (en) 1971-06-29

Family

ID=5684105

Family Applications (1)

Application Number Title Priority Date Filing Date
US757044A Expired - Lifetime US3590191A (en) 1967-08-31 1968-09-03 Liquid high-tension switch with tubelike electric arc-quenching channels

Country Status (5)

Country Link
US (1) US3590191A (de)
BE (1) BE720113A (de)
CH (1) CH476388A (de)
FR (1) FR1582248A (de)
GB (1) GB1238337A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250365A (en) * 1978-03-22 1981-02-10 Electric Power Research Institute, Inc. Current interrupter for fault current limiter and method
US4273977A (en) * 1977-08-31 1981-06-16 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
US20040163741A1 (en) * 2000-11-27 2004-08-26 Sumitomo Metal Industries, Ltd. Method of manufacture of ultra-low carbon steel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB312276A (en) * 1928-05-23 1930-02-06 Siemens Ag A high potential switch for electric locomotives
US1747445A (en) * 1927-10-22 1930-02-18 Westinghouse Electric & Mfg Co Switch
DE610455C (de) * 1929-04-23 1935-03-11 Siemens Schuckertwerke Akt Ges Druckluftschalter mit Mehrfachunterbrechung
US2443017A (en) * 1944-07-18 1948-06-08 Gen Electric Electric arc extinguishing apparatus
DE963442C (de) * 1952-09-12 1957-05-09 Licentia Gmbh Druckgasschalter
US3327083A (en) * 1964-12-07 1967-06-20 Allis Chalmers Mfg Co Multi-chambered arc interrupter having fluid pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1747445A (en) * 1927-10-22 1930-02-18 Westinghouse Electric & Mfg Co Switch
GB312276A (en) * 1928-05-23 1930-02-06 Siemens Ag A high potential switch for electric locomotives
DE610455C (de) * 1929-04-23 1935-03-11 Siemens Schuckertwerke Akt Ges Druckluftschalter mit Mehrfachunterbrechung
US2443017A (en) * 1944-07-18 1948-06-08 Gen Electric Electric arc extinguishing apparatus
DE963442C (de) * 1952-09-12 1957-05-09 Licentia Gmbh Druckgasschalter
US3327083A (en) * 1964-12-07 1967-06-20 Allis Chalmers Mfg Co Multi-chambered arc interrupter having fluid pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4273977A (en) * 1977-08-31 1981-06-16 Mitsubishi Denki Kabushiki Kaisha Circuit interrupter
US4250365A (en) * 1978-03-22 1981-02-10 Electric Power Research Institute, Inc. Current interrupter for fault current limiter and method
US20040163741A1 (en) * 2000-11-27 2004-08-26 Sumitomo Metal Industries, Ltd. Method of manufacture of ultra-low carbon steel

Also Published As

Publication number Publication date
GB1238337A (de) 1971-07-07
BE720113A (de) 1969-02-03
FR1582248A (de) 1969-09-26
DE1640720B2 (de) 1973-11-15
CH476388A (de) 1969-07-31
DE1640720A1 (de) 1970-05-27

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