US3891814A - Apparatus for arc quenching - Google Patents

Apparatus for arc quenching Download PDF

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Publication number
US3891814A
US3891814A US334936A US33493673A US3891814A US 3891814 A US3891814 A US 3891814A US 334936 A US334936 A US 334936A US 33493673 A US33493673 A US 33493673A US 3891814 A US3891814 A US 3891814A
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US
United States
Prior art keywords
nozzle
arc
invention according
tube
current
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
US334936A
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English (en)
Inventor
Walter Hertz
Jurgen Mentel
Jan Stroh
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US3891814A publication Critical patent/US3891814A/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
    • H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
    • H01H33/7069—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by special dielectric or insulating properties or by special electric or magnetic field control properties
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers

Definitions

  • the current which achieves these advantages is obtained by causing the base of the arc to be drawn inside the entrance of the nozzle.
  • the nozzle has a shape such that the current will then flow in a direction opposite to that of the current flow in the arc thereby providing the required magnetic force.
  • the preferred apparatus for practicing the method of the present invention comprises two opposing nozzle shaped electrodes having contact surfaces on the inside.
  • a bridging electric electrode concentric with and inside the two nozzles, electrically connects their inner surfaces and upon operation of the circuit breaker draws the arc from the inside of one nozzle to the inside of the other.
  • the surfaces of the electrodes, their outer opposing end faces and a portion of their inner surface are coated with an insulating material.
  • a second embodiment of the invention includes the forming of spiral paths on the end faces of the electrode to further enhance the characteristics of the magnetic field and to Cause rotation of the base points of the arc.
  • a third embodiment in which only one nozzle type electrode is used.
  • FIG. 3 is an end view ofthe nozzle of FIG. 2 showing the electrode arrangement to obtain the spiral path.
  • FIG. 1 is a cross sectional view illustrating a first ernbodiment of the present invention.
  • the upper electrode 2 is formed to shape a nozzle having an entrance portion 6 and a mouth portion 10.
  • the lower electrode 4 has an entrance portion 8 and a mouth portion l2.
  • the two nozzles thus constructed form the path through which the quenching medium will flow for quenching the arc.
  • the quenching effect of the flow will be similar to that described in the above referenced German published application and will not be discussed in detail herein.
  • Each of the electrodes is covered on its outside by an insulating material designated 16 for electrode 2 and 18 for electrode 4.
  • the electrodes 2 and 4 may be divided into individual segments similar to the segmenting of the contacts in German application No. l,2l2,6l7 referenced above. This may be done by slotting the electrodes 2 and 4 and filling in these slots with insulating material much in the manner to be described below in connection with FIGS. 2 and 3.
  • the slots 27 should extend at least to the depth of the nozzle mouth opening designated respectively as and l2.
  • the number of slots may be two, three or more as desired.
  • a contact member designated by the numeral 25 will have been making contact between the inner surfaces of the electrodes 2 and 4 prior to the switching action.
  • Contact member 25 will preferably be of tubular design and will be mechanically connected to the breaker tripping mechanism in a manner well known in the art.
  • the contact member 2S will be drawn from a position where it contacts the electrodes 2 and 4 to the position shown on the drawings. In doing so, it will draw the arc designated as 26 between electrodes 4 and 2. Because the insulating material 16 and 18 is extended over the ends of the nozzles 2 and 4 partially into the sections 6 and 8, the arc will be drawn at least partially inside each of the nozzles.
  • the insulation 22 and 24 prevents the arc from jumping from the inner portion of the electrodes to the outer walls.
  • the current must follow the curved paths designated respectively as 28 and 32 on the electrodes 2 and 4.
  • the depth of the insulation on the inner portion of the contact designated on the figure as b should be at least equal to or greater than the dimension shown as a, the thickness of the electrode at its end.
  • the slots are cut so that the conducting portions of the electrode follow an essentially spiral path such as shown by the current path 48.
  • This arrangement will produce magnetic forces which reinforce the forces de ⁇ scribed above in connection with the current paths 28 and 32.
  • the current l flowing in the right hand side of the electrode 2 of FIG. 2 will enter the end portion of the electrode segment 46 at a point designated as 47. It will follow the path shown by the line 48 on FIG. 3
  • the beneficial effects obtained by rotating the current path in the end faces of the electrodes 2 and 4 can be enhanced by additional rotations in integral 360 increments. This may be done by additional slotting of the ends or by continuing the slots in a helical fashion along the outer walls of the cylindrical surfaces of the electrodes 2 and 4. With this arrangement the axial field in the nozzle is amplified and the rotation effect on base points of' the arc is increased.
  • the nozzle mouth opening can be provided with replaceable contacts commonly known as burn-off fingers 50 as shown on FIG. 2. These are supported by a lip on the inner portion ofthe electrode 2 and by an additional lip in the insulation 54. They are held in place by springs designated as 5l and 52.
  • a single burn-off finger 50 provided for each segment of the electrode or, depending on the width of the electrode segments, two or more fingers may be provided for each section as illustrated by the two fingers 50 associated with each segment on FIG. 3.
  • a collector electrode 56 is also shown on FIG. 2. This electrode will pick up the arc if the quenching and magnetic forces have moved it beyond the entrance parts of the nozzle 6 and 8. Such collector electrodes and their use are well known in the art.

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  • Circuit Breakers (AREA)
US334936A 1972-02-28 1973-02-22 Apparatus for arc quenching Expired - Lifetime US3891814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2209388A DE2209388C3 (de) 1972-02-28 1972-02-28 Kontaktanordnung für Gasströmungsschalter

Publications (1)

Publication Number Publication Date
US3891814A true US3891814A (en) 1975-06-24

Family

ID=5837344

Family Applications (1)

Application Number Title Priority Date Filing Date
US334936A Expired - Lifetime US3891814A (en) 1972-02-28 1973-02-22 Apparatus for arc quenching

Country Status (10)

Country Link
US (1) US3891814A (enrdf_load_stackoverflow)
JP (1) JPS4899661A (enrdf_load_stackoverflow)
CH (1) CH550478A (enrdf_load_stackoverflow)
CS (1) CS167376B2 (enrdf_load_stackoverflow)
DD (1) DD103338A5 (enrdf_load_stackoverflow)
DE (2) DE7207479U (enrdf_load_stackoverflow)
FR (1) FR2174062B1 (enrdf_load_stackoverflow)
IT (1) IT979526B (enrdf_load_stackoverflow)
NL (1) NL7301006A (enrdf_load_stackoverflow)
SU (1) SU511881A3 (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151391A (en) * 1976-05-28 1979-04-24 Siemens Aktiengesellschaft Contact arrangement for a pressurized gas circuit breaker
US4160140A (en) * 1976-06-10 1979-07-03 Siemens Aktiengesellschaft Contact arrangement for pressurized-gas circuit breaker
US4181837A (en) * 1976-09-15 1980-01-01 Westinghouse Electric Corp. Compressed-gas circuit interrupter having insulated contacts
US4743719A (en) * 1986-03-25 1988-05-10 Northern Engineering Industries Plc Arc interrupter
US4748302A (en) * 1986-03-25 1988-05-31 Northern Engineering Industries Plc Arc interrupter
WO2015039918A1 (en) * 2013-09-18 2015-03-26 Abb Technology Ag High-voltage circuit breaker with improved robustness
EP2887367A1 (en) * 2013-12-19 2015-06-24 ABB Technology AB Gas-insulated high-voltage circuit breaker
CN117877945A (zh) * 2024-01-29 2024-04-12 北京华盛中能科技有限公司 一种塑壳断路器的端子罩及断路器结构

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5813560Y2 (ja) * 1977-02-15 1983-03-16 日新電機株式会社 ガスしゃ断器
FR2443740A1 (fr) * 1978-12-08 1980-07-04 Merlin Gerin Sectionneur sous charge a depression
DE3005884C2 (de) * 1980-02-16 1986-09-04 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kontaktsystem für Leistungsschalter
CN109256290B (zh) * 2018-10-11 2020-11-24 西安西电开关电气有限公司 双动开关设备及其断口传动装置
DE102018222782A1 (de) * 2018-12-21 2020-06-25 Siemens Aktiengesellschaft Doppeldüsenschalter und Verfahren zum Schalten hoher Ströme in der Hochspannungstechnik

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210505A (en) * 1962-04-03 1965-10-05 Gen Electric Electrode structure for an electric circuit interrupter
US3274365A (en) * 1963-08-16 1966-09-20 Gen Electric Gas blast circuit breaker of the axial blast type with magnetic means for rotating an arc terminal
US3327081A (en) * 1964-11-25 1967-06-20 Allis Chalmers Mfg Co Contact with high resistance material insert
US3417216A (en) * 1965-04-16 1968-12-17 Gen Electric Arc controlling electrodes for switches and gaps
US3471666A (en) * 1967-04-18 1969-10-07 Gen Electric Axial blast interrupter with arc-rotating means

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS423695Y1 (enrdf_load_stackoverflow) * 1964-03-03 1967-03-03

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210505A (en) * 1962-04-03 1965-10-05 Gen Electric Electrode structure for an electric circuit interrupter
US3274365A (en) * 1963-08-16 1966-09-20 Gen Electric Gas blast circuit breaker of the axial blast type with magnetic means for rotating an arc terminal
US3327081A (en) * 1964-11-25 1967-06-20 Allis Chalmers Mfg Co Contact with high resistance material insert
US3417216A (en) * 1965-04-16 1968-12-17 Gen Electric Arc controlling electrodes for switches and gaps
US3471666A (en) * 1967-04-18 1969-10-07 Gen Electric Axial blast interrupter with arc-rotating means

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4151391A (en) * 1976-05-28 1979-04-24 Siemens Aktiengesellschaft Contact arrangement for a pressurized gas circuit breaker
US4160140A (en) * 1976-06-10 1979-07-03 Siemens Aktiengesellschaft Contact arrangement for pressurized-gas circuit breaker
US4181837A (en) * 1976-09-15 1980-01-01 Westinghouse Electric Corp. Compressed-gas circuit interrupter having insulated contacts
US4743719A (en) * 1986-03-25 1988-05-10 Northern Engineering Industries Plc Arc interrupter
US4748302A (en) * 1986-03-25 1988-05-31 Northern Engineering Industries Plc Arc interrupter
WO2015039918A1 (en) * 2013-09-18 2015-03-26 Abb Technology Ag High-voltage circuit breaker with improved robustness
EP2887367A1 (en) * 2013-12-19 2015-06-24 ABB Technology AB Gas-insulated high-voltage circuit breaker
CN117877945A (zh) * 2024-01-29 2024-04-12 北京华盛中能科技有限公司 一种塑壳断路器的端子罩及断路器结构

Also Published As

Publication number Publication date
DE7207479U (de) 1972-09-28
CH550478A (de) 1974-06-14
DE2209388B2 (de) 1974-09-12
DD103338A5 (enrdf_load_stackoverflow) 1974-01-12
NL7301006A (enrdf_load_stackoverflow) 1973-08-30
DE2209388A1 (de) 1973-09-13
SU511881A3 (ru) 1976-04-25
DE2209388C3 (de) 1975-04-30
IT979526B (it) 1974-09-30
CS167376B2 (enrdf_load_stackoverflow) 1976-04-29
FR2174062B1 (enrdf_load_stackoverflow) 1979-03-16
FR2174062A1 (enrdf_load_stackoverflow) 1973-10-12
JPS4899661A (enrdf_load_stackoverflow) 1973-12-17

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