US3870845A - Vacuum circuit interrupter with a plurality of interrupting units - Google Patents

Vacuum circuit interrupter with a plurality of interrupting units Download PDF

Info

Publication number
US3870845A
US3870845A US409445A US40944573A US3870845A US 3870845 A US3870845 A US 3870845A US 409445 A US409445 A US 409445A US 40944573 A US40944573 A US 40944573A US 3870845 A US3870845 A US 3870845A
Authority
US
United States
Prior art keywords
interrupting
plasma
interrupting unit
units
helicoidal winding
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
US409445A
Other languages
English (en)
Inventor
Jan Christiaan Clason
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.)
Hazemeijer BV
Original Assignee
Hazemeijer BV
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 Hazemeijer BV filed Critical Hazemeijer BV
Application granted granted Critical
Publication of US3870845A publication Critical patent/US3870845A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers
    • H01H2033/024—Details particular to three-phase circuit breakers with a triangular setup of circuit breakers
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66269—Details relating to the materials used for screens in vacuum switches
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6668—Operating arrangements with a plurality of interruptible circuit paths in single vacuum chamber
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6644—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact
    • H01H33/6645—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact in which the coil like electrical connections encircle at least once the contact rod

Definitions

  • the known circuit interrupter comprises three evacuated spaces, each of which including three one phase interrupters.
  • the corresponding interrupters in the three evacuated spaces are mechanically coupled and constitute a three phase interrupter, the three contacts of which being arranged respectively in different vacuum spaces.
  • each vacuum space includes three interrupting units, which can be operated independently one from another.
  • Each interrupting unit is provided with a plasma screen of ceramic material, acting to separate the plasmas of the various interrupting units. For if two interrupting units are opened and the third one is closed, and if the'third interrupting unit would be opened in absence of the plasma screens, the plasma of thethird unit would enter between the opened contacts of the two remaining interrupting units, whereby the latter'might break through. It is this phenomenon which is prevented with the ceramic plasma screens.
  • the ceramic plasma screens can be omitted, if the three one phase interrupting units are provided with three respective axial magnetic fields, which are generated by the electric currents, flowing through the interrupting units.
  • each plasma screen is constituted as a helicoidal winding of conductive material, which is electrically inserted into the electric current circuit of the associated interrupting unit, said helicoidal winding generating a magnetic field, which encloses the plasma of the associated interrupting unit.
  • each interrupting unit carries a contact at one end and is provided with a connecting rod at the other end, said connecting rod being brought out of the housing vacuum tight, while the other contact is arranged on a contact rod, which at least over a part of its length is coaxially arranged in the helicoidal winding.
  • a further important advantage of said arrangement is that the disturbing influence on the electric interrupting arc of the electromagnetic field which is generated by the current conductors connected to the contacts, whichinevitably have an'unfavourable form in known structures, is eliminated to a large extent.
  • FIG. 1 is a cross-section of a vacuum circuit interrupter having three interrupting units according to present invention along the line l] in FIG. 2, and
  • FIG. 2 is a cross-section alongthe line llll in HO. 1.
  • the vacuum circuit interrupter comprises a common evacuated housing 1, in which three interrupting units 2a, 2b and 20, respectively, are arranged.
  • the three interrupting units 2a, 2b and 2c are in open communication with the interior of the common evacuated housing 1 through the helicoidal windings 11a, 11b and 11c.
  • Each interrupting unit 2a, 2b and 20 comprises a movable contact member 3a, 3b and 30, respectively, which is arranged on a contact rod 4a, 4b and 40, respectively, which through a bellows 5a, 5b and 5c, respectively, is connected vacuum tight to an insulator 6a, 6b and 60, respectively, which in turn is coupled vacuum tight to the housing 1.
  • the contact rod 4a, 4b and 4c can be moved up and down according to the arrows, and thereby the contact member 3a, 3b, 30 can be brought into engagement with or can be separated from the corresponding stationary contact member 7a, 7b, 70, which is in the form ofa projection or lump on the bottom of a pot 8a, 8b, 80, which is disposed upside down and is provided with the connecting rods 90, 9b, 90, which are brought out of the housing 1 in a vacuum tight fashion by means of the insulators 10a, 10b, 10c.
  • Each pot 8a, 8b, 8c partially consists of a helicoidal winding 11a, 11b, which conducts the current flow in the associated interrupting unit, so that in each interrupting unit 2a, 2b, 2c an axial magnetic field is generated, which is oriented parallel to the axis of the contact rod 4a, 4b, 40.
  • FIG. 2 additionally illustrated are the take-off contacts and 120, with which the current of the movable contact rod 4a, 40 is passed on to the stationary connecting rods 13a, 130.
  • the parts 2b through 13b are not visible of course.
  • a vacuum circuit interrupter of the type' having two or more identical interrupting units arranged in one evacuated housing, each interrupting unit'having a stationary contact and a movable contact, and a plasma screen, which blocks access to the other interrupting units of the plasma generated by the interrupting pro-' cess of a particular interrupting unit, the improvement comprising: a helicoidal winding of conductive material electrically connected with the electric current circuit of the associated interrupting unit, said helicoidal winding generating a magnetic field for enclosing the plasma of the associated interrupting unit.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
US409445A 1972-10-27 1973-10-25 Vacuum circuit interrupter with a plurality of interrupting units Expired - Lifetime US3870845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL727214615A NL153713B (nl) 1972-10-27 1972-10-27 Vacuuemschakelaar met twee of meer schakeleenheden.

Publications (1)

Publication Number Publication Date
US3870845A true US3870845A (en) 1975-03-11

Family

ID=19817253

Family Applications (1)

Application Number Title Priority Date Filing Date
US409445A Expired - Lifetime US3870845A (en) 1972-10-27 1973-10-25 Vacuum circuit interrupter with a plurality of interrupting units

Country Status (15)

Country Link
US (1) US3870845A (it)
JP (1) JPS5336579B2 (it)
AT (1) AT337820B (it)
AU (1) AU467453B2 (it)
BE (1) BE806222A (it)
CA (1) CA998080A (it)
CH (1) CH558078A (it)
DK (1) DK142798B (it)
ES (1) ES419980A1 (it)
FR (1) FR2204867B1 (it)
GB (1) GB1433264A (it)
IT (1) IT996890B (it)
NL (1) NL153713B (it)
SE (1) SE386767B (it)
ZA (1) ZA738266B (it)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969598A (en) * 1975-02-03 1976-07-13 General Electric Company Vacuum-type circuit interrupter with a plurality of sets of contacts in parallel
US4107496A (en) * 1973-12-21 1978-08-15 Hazemeijer B.V. Vacuum switching apparatus with double interruption and including an interposed barrier
US4306129A (en) * 1979-08-09 1981-12-15 Siemens Aktiengesellschaft Low voltage contactor switch with three-phase contact bank
US5985628A (en) * 1997-01-21 1999-11-16 Abb Patent Gmbh Generator switch
US6156989A (en) * 1999-09-30 2000-12-05 Rockwell Technologies, Llc Multi-phase vacuum switch arrangement including an electromagnet actuating mechanism
US20100006405A1 (en) * 2007-01-17 2010-01-14 Siemens Aktiengesellschaft Circuit Breaker and Method for its Production

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5857347U (ja) * 1981-10-14 1983-04-18 日産自動車株式会社 プレス型の成形品押し上げ装置
DE3475243D1 (en) * 1984-05-18 1988-12-22 Sprecher Energie Ag Vacuum interrupter
JPS6136332U (ja) * 1984-07-31 1986-03-06 日産自動車株式会社 プレス型の成形品押し上げ装置
GB2233498A (en) * 1989-06-21 1991-01-09 Gen Electric Co Plc Vacuum switch arc control
US5808258A (en) * 1995-12-26 1998-09-15 Amerace Corporation Encapsulated high voltage vacuum switches
US5667060A (en) * 1995-12-26 1997-09-16 Amerace Corporation Diaphragm seal for a high voltage switch environment
US6144005A (en) * 1997-07-23 2000-11-07 Hitachi, Ltd. Vacuum switch and a vacuum switchgear using the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906841A (en) * 1956-01-03 1959-09-29 Jennings Radio Mfg Corp Three-phase vacuum switch
US3702911A (en) * 1970-07-16 1972-11-14 Siemens Ag Vacuum circuit breaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1195026A (en) * 1966-10-11 1970-06-17 English Electric Co Ltd Improvements in or relating to Vacuum Circuit Interrupters.
DE1916401A1 (de) * 1968-11-29 1970-07-16 Inst Prueffeld Fuer Elek Sche Hochleistungs-Vakuumbogenloeschkammer
DE2242816A1 (de) * 1971-09-06 1973-03-15 Inst Prueffeld Elekt Kontaktanordnung fuer vakuumschalter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2906841A (en) * 1956-01-03 1959-09-29 Jennings Radio Mfg Corp Three-phase vacuum switch
US3702911A (en) * 1970-07-16 1972-11-14 Siemens Ag Vacuum circuit breaker

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107496A (en) * 1973-12-21 1978-08-15 Hazemeijer B.V. Vacuum switching apparatus with double interruption and including an interposed barrier
US3969598A (en) * 1975-02-03 1976-07-13 General Electric Company Vacuum-type circuit interrupter with a plurality of sets of contacts in parallel
US4306129A (en) * 1979-08-09 1981-12-15 Siemens Aktiengesellschaft Low voltage contactor switch with three-phase contact bank
US5985628A (en) * 1997-01-21 1999-11-16 Abb Patent Gmbh Generator switch
US6156989A (en) * 1999-09-30 2000-12-05 Rockwell Technologies, Llc Multi-phase vacuum switch arrangement including an electromagnet actuating mechanism
US20100006405A1 (en) * 2007-01-17 2010-01-14 Siemens Aktiengesellschaft Circuit Breaker and Method for its Production

Also Published As

Publication number Publication date
FR2204867B1 (it) 1979-04-20
DE2353141B2 (de) 1976-11-18
SE386767B (sv) 1976-08-16
NL153713B (nl) 1977-06-15
DE2353141A1 (de) 1974-05-02
NL7214615A (it) 1974-05-01
ATA908973A (de) 1976-11-15
IT996890B (it) 1975-12-10
CA998080A (en) 1976-10-05
ES419980A1 (es) 1976-03-16
AU6178173A (en) 1975-04-24
JPS5052565A (it) 1975-05-10
BE806222A (nl) 1974-04-17
CH558078A (de) 1975-01-15
GB1433264A (en) 1976-04-22
JPS5336579B2 (it) 1978-10-03
FR2204867A1 (it) 1974-05-24
DK142798C (it) 1981-08-24
DK142798B (da) 1981-01-26
AT337820B (de) 1977-07-25
ZA738266B (en) 1974-08-28
AU467453B2 (en) 1975-12-04

Similar Documents

Publication Publication Date Title
US5347096A (en) Electrical circuit breaker with two vacuum cartridges in series
US3870845A (en) Vacuum circuit interrupter with a plurality of interrupting units
US3671696A (en) Vacuum interrupter shunted with mechanical switch
US4052577A (en) Magnetically driven ring arc runner for circuit interrupter
GB1272704A (en) Gas blast circuit interrupter having conducting orifice means
US4109124A (en) Circuit-breakers for high voltages
US4079219A (en) SF 6 Puffer for arc spinner
GB1151572A (en) Improvements in or relating to Circuit Breaker Apparatus
GB1528778A (en) Vacuum current circuit interrupter
US3643047A (en) Series double break rod array vacuum switch
US4525612A (en) Gas insulated switch
CA1040240A (en) Electric circuit breaker comprising parallel-connected vacuum interrupters
GB1164686A (en) Vacuum-Type Circuit Breaker
US4516006A (en) Puffer type gas-blast circuit breaker
US3891896A (en) Vacuum circuit interrupter
GB1443809A (en) Earthing switch arrangement
US3814881A (en) Vacuum interrupters enclosed in vacuum housings
US3508021A (en) Vacuum switch
GB528896A (en) Improvements in or relating to electric circuit interrupters having arc extinguishing arrangements
US3356893A (en) High power vacuum discharge device having a pair of interleaved multivaned arcing electrodes
US3899650A (en) Grounded tank circuit breaker
US2875302A (en) Circuit interrupter
US3538279A (en) Blowout magnet structure for air-break circuit interrupter
US3480750A (en) Multiple-break enclosed-type circuit interrupters with external rotary contact driving means and single chamber construction
US2611058A (en) Circuit interrupter