US2336316A - High voltage electric circuit breaker - Google Patents

High voltage electric circuit breaker Download PDF

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Publication number
US2336316A
US2336316A US395690A US39569041A US2336316A US 2336316 A US2336316 A US 2336316A US 395690 A US395690 A US 395690A US 39569041 A US39569041 A US 39569041A US 2336316 A US2336316 A US 2336316A
Authority
US
United States
Prior art keywords
circuit breaker
tension
interruption
high voltage
electric circuit
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
US395690A
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English (en)
Inventor
Thommen Hans
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.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Application granted granted Critical
Publication of US2336316A publication Critical patent/US2336316A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4416—Heterogeneous cables
    • 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
    • H01H33/02—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
    • H01H2033/146—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc using capacitors, e.g. for the voltage division over the different switches

Definitions

  • This arrangement enables not only a favourable mechanical assembly of the switch chamber to be obtained but also has the advantage that particularly with circuit breakers having multiple interruption, parts of the press devices can be employed for controlling the voltage.
  • FIG. 1 shows a longitudinal section through the switch chamber of a multiple break gas blast circuit breaker embodying the principles of the invention
  • Figs. 2, 3 and 4 are fragmentary views in partial section of modified embodiments of the invention.
  • the switch chamber of the multiple break gas blast circuit breaker as shown in Fig. 1 consists of a number of switch elements each of which contains a point of interruption.
  • Each element consists of a hollow cylindrical insulator part a1, a2, a3, etc, and the metallic end parts 171, be, b3, etc., which close the insulators.
  • These metallic end parts are provided with inlet openings c for the supply of compressed gas to the various points of interruption and with outlet ducts d to enable the gas to escape from the arcing contacts.
  • the insulator and metallic parts of the chambers are held together by means of press devices consisting of tension elements e1, er and the connecting compression element 1. Pressure is exerted by means of a press bolt g so that the tension. elements e1, e2 are subjected to a tensile stress.
  • This manner of assembling the switch chamber can be applied equally well when there are several switch elements each with a point of interruption and arranged one above the other to form a column, or when there is only a single switch element.
  • the switch elements can have several points of interruption if necessary.
  • the number of tension elements used for the press device is quite optional. It is also possible to use a single, preferably tubular, tension element which surrounds the switch chamber or is located inside this latter.
  • the tension elements can contain resistances as shown in Fig. 1, or capacities h, as shown in Fig. 2, which are connected together in series and bridge-over the points of interruption.
  • the tension elements e1, 62 can be insulator tubes containing means for producing a uniform voltage distribution, these tubes being provided with petticoats of a suitable form as shown at n, Fig. 3.
  • the insulator tubes can be built with conductive layers, similar to those employed in condenser bushings, so that the tubes themselves act as condensers. The capacity can then be subdivided into several stages connected in series and arranged in parallel with the switch elements. Condenser elements can also be arranged inside the insulator tubes or on the outside of same in layers. A further possibility is to provide the insulator tension elements with an external layer of semi-conductive material 0, Fig. 3, or to construct the tension elements themselves of such a material as shown at 10, Fig. 4.
  • tension elements with a protective tube q preferably of ceramic material, which has petticoats 1 arranged on it. It is also possible to arrange pieces of semi-conductive material in layers inside the insulator tubes. If resistances are used for controlling the voltage distribution, it is possible to use for this purpose resistances whose eifective ohmic value varies with the impressed voltage, these resistances having a characteristic whereby the current value increases more than proportionally with the voltage, as is for instance the case with carborundum resistances.
  • the capacities or resistances for bridging over the arcing points can be of unequal size and arranged in such a manner that their control effeet is approximately equally favourable when 1.
  • a multiple break gas blast circuit breaker of the type including a plurality of axially alined and superposed arc extinguishing chambers,
  • said retaining means comprises a plurality of tension members extending along and spaced from said chambers, and means connecting the outer ends of said tension members and including an element adjustable to compress said assembly of hollow insulators and metal plates; said tension members being tubes of insulating material and provided with petticoats.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Circuit Breakers (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
US395690A 1940-06-08 1941-05-28 High voltage electric circuit breaker Expired - Lifetime US2336316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH548096X 1940-06-08

Publications (1)

Publication Number Publication Date
US2336316A true US2336316A (en) 1943-12-07

Family

ID=4519460

Family Applications (1)

Application Number Title Priority Date Filing Date
US395690A Expired - Lifetime US2336316A (en) 1940-06-08 1941-05-28 High voltage electric circuit breaker

Country Status (6)

Country Link
US (1) US2336316A (da)
BE (1) BE441661A (da)
CH (1) CH216796A (da)
FR (1) FR872753A (da)
GB (1) GB548096A (da)
NL (1) NL57703C (da)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459612A (en) * 1944-12-22 1949-01-18 Westinghouse Electric Corp Compressed gas circuit interrupter
US2530939A (en) * 1947-09-27 1950-11-21 Westinghouse Electric Corp Circuit interrupter with arc extinguishing shunt
US2532529A (en) * 1947-02-03 1950-12-05 Reyrolle A & Co Ltd Fluid-blast electric circuit breaker
US2558075A (en) * 1948-02-11 1951-06-26 Westinghouse Electric Corp Circuit interrupter
US2602868A (en) * 1949-02-03 1952-07-08 Westinghouse Electric Corp Fluid pressure assembly
US2645698A (en) * 1949-01-04 1953-07-14 William C Gregory Nonarcing interrupting switch
US2675505A (en) * 1949-12-02 1954-04-13 Gen Electric Multibreak circuit breaker with protective impedances
US2747055A (en) * 1952-05-31 1956-05-22 Asea Ab High tension circuit breakers
US2840670A (en) * 1954-12-20 1958-06-24 Westinghouse Electric Corp Circuit interrupters
US3163736A (en) * 1961-05-23 1964-12-29 S & C Electric Co High voltage gas type circuit interrupter
US3227924A (en) * 1960-10-26 1966-01-04 Continental Elektro Ind Ag High voltage power circuit breaker pole units having series breaks
US4562319A (en) * 1979-06-06 1985-12-31 Merlin Gerin Metal-clad puffer-type circuit-breaker having closing resistors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8421520U1 (de) * 1984-07-18 1986-11-13 Siemens AG, 1000 Berlin und 8000 München Elektrische Isolatorsäule

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459612A (en) * 1944-12-22 1949-01-18 Westinghouse Electric Corp Compressed gas circuit interrupter
US2532529A (en) * 1947-02-03 1950-12-05 Reyrolle A & Co Ltd Fluid-blast electric circuit breaker
US2530939A (en) * 1947-09-27 1950-11-21 Westinghouse Electric Corp Circuit interrupter with arc extinguishing shunt
US2558075A (en) * 1948-02-11 1951-06-26 Westinghouse Electric Corp Circuit interrupter
US2645698A (en) * 1949-01-04 1953-07-14 William C Gregory Nonarcing interrupting switch
US2602868A (en) * 1949-02-03 1952-07-08 Westinghouse Electric Corp Fluid pressure assembly
US2675505A (en) * 1949-12-02 1954-04-13 Gen Electric Multibreak circuit breaker with protective impedances
US2747055A (en) * 1952-05-31 1956-05-22 Asea Ab High tension circuit breakers
US2840670A (en) * 1954-12-20 1958-06-24 Westinghouse Electric Corp Circuit interrupters
US3227924A (en) * 1960-10-26 1966-01-04 Continental Elektro Ind Ag High voltage power circuit breaker pole units having series breaks
US3163736A (en) * 1961-05-23 1964-12-29 S & C Electric Co High voltage gas type circuit interrupter
US4562319A (en) * 1979-06-06 1985-12-31 Merlin Gerin Metal-clad puffer-type circuit-breaker having closing resistors

Also Published As

Publication number Publication date
GB548096A (en) 1942-09-24
FR872753A (fr) 1942-06-18
NL57703C (da)
BE441661A (da)
CH216796A (de) 1941-09-15

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