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GB927169A - Improvements in or relating to high speed current cut-off devices - Google Patents

Improvements in or relating to high speed current cut-off devices

Info

Publication number
GB927169A
GB927169A GB5713/62A GB571362A GB927169A GB 927169 A GB927169 A GB 927169A GB 5713/62 A GB5713/62 A GB 5713/62A GB 571362 A GB571362 A GB 571362A GB 927169 A GB927169 A GB 927169A
Authority
GB
United Kingdom
Prior art keywords
chamber
conductor
charge
cut
steel
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
GB5713/62A
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.)
Charbonnages de France CDF
Original Assignee
Charbonnages de France CDF
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 Charbonnages de France CDF filed Critical Charbonnages de France CDF
Publication of GB927169A publication Critical patent/GB927169A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/006Opening by severing a conductor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00Details of emergency protective circuit arrangements
    • H02H1/0007Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/003Fault detection by injection of an auxiliary voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02Details
    • H02H3/021Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/22Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
    • H02H7/226Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for wires or cables, e.g. heating wires

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Air Bags (AREA)
  • Fuses (AREA)
  • Protection Of Transformers (AREA)

Abstract

927,169. Cut-outs. CHARBONNAGES DE FRANCE. Oct. 28, 1959 [Oct. 28, 1958], No. 5713/62. Divided out of 927,168. Class 38 (1). A high-speed cut-out particularly for protective systems according to Specifications 927,167 and 927,168 comprises a partly hollow conductor 13 containing an explosive charge 8 and having circular or helical shrapnel grooves 13a on its outer surface such that the shattering of the conductor 13 by predetermined detonation of charge 8 results in the rapid termination of any arcing. The conductor 13 is enclosed in a chamber 9 comprising a tubular insulating casing 9a closed at one end by a steel cap 11, connected to a blade contact 12, and at the other end by a steel priming chamber 1 connected to a further blade contact 2 and soldered at 10a to a bush 10 in the wall of chamber 1. The latter encloses a detonator 4 for the charge 8, the conductor 13 being connected to cap 11 by a screw 18, the firing wires 6 passing through insulating member 5 and bore 1b of a cover 1a of the chamber 1. The chamber 9 may be filled with fine-grain sand or borax. In a modification (Fig. 2, not shown) the chamber 1 is omitted, both the detonator and charge being contained in the hollow conductor and the firing wires being led out through a hollow extension at one end of the conductor which passes through a steel plug closing the insulating casing and is itself closed by a plastic plug. For the protection of a three-phase network a cut-out is provided for each phase, and a single detonating fuse may link the devices.
GB5713/62A 1957-07-09 1959-10-28 Improvements in or relating to high speed current cut-off devices Expired GB927169A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR1179548X 1957-07-09
FR803610A FR1242994A (en) 1957-07-09 1957-08-26 Protection of electrical networks comprising cables
FR1193579X 1958-03-25
FR1198124X 1958-06-02
FR777724 1958-10-28

Publications (1)

Publication Number Publication Date
GB927169A true GB927169A (en) 1963-05-29

Family

ID=43479304

Family Applications (4)

Application Number Title Priority Date Filing Date
GB21761/58A Expired GB866031A (en) 1957-07-09 1958-07-07 Improvements in or relating to protection devices for electric networks
GB5713/62A Expired GB927169A (en) 1957-07-09 1959-10-28 Improvements in or relating to high speed current cut-off devices
GB36658/59A Expired GB927168A (en) 1957-07-09 1959-10-28 Improvements in or relating to protection systems for electric networks comprising cables
GB36657/59A Expired GB927167A (en) 1957-07-09 1959-10-28 Improvements in or relating to systems for protection of an electric network by highspeed current cut-off

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB21761/58A Expired GB866031A (en) 1957-07-09 1958-07-07 Improvements in or relating to protection devices for electric networks

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB36658/59A Expired GB927168A (en) 1957-07-09 1959-10-28 Improvements in or relating to protection systems for electric networks comprising cables
GB36657/59A Expired GB927167A (en) 1957-07-09 1959-10-28 Improvements in or relating to systems for protection of an electric network by highspeed current cut-off

Country Status (5)

Country Link
BE (3) BE569291A (en)
DE (4) DE1146176B (en)
FR (5) FR1179548A (en)
GB (4) GB866031A (en)
NL (1) NL104787C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048569A (en) * 2014-05-29 2014-09-17 西安电子工程研究所 Microsecond coaxial synchronous control switch

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2229157A1 (en) * 1973-05-07 1974-12-06 Merlin Gerin Electricity network fault location system - automatic system reconnects non faulty circuit sections
GB2195846A (en) * 1986-10-09 1988-04-13 Lucas Ind Plc Detecting disconnection of electrical apparatus
DE10209626B4 (en) * 2002-03-05 2005-02-03 Mbb Airbag Systems Gmbh Pyrotechnic switch
DE10209627A1 (en) * 2002-03-05 2003-10-02 Mbb Airbag Systems Gmbh Pyrotechnical switch e.g. for load disconnection in motor vehicle, has conductive body with two conductive regions, sandwiching rated disconnect region with cavity containing pressure source
CN106531415A (en) * 2016-12-28 2017-03-22 江苏思源赫兹互感器有限公司 Electric reactance device with over voltage suppression and preparation method thereof
CN107342134A (en) * 2017-07-08 2017-11-10 安徽德源电缆集团有限公司 A kind of ethylene propylene rubber insulated type signal cable of good toughness
CN107180669A (en) * 2017-07-08 2017-09-19 安徽德源电缆集团有限公司 A kind of novel ethylene propylene rubber insulated cable
DE102019103621A1 (en) * 2019-02-14 2020-08-20 Doepke Schaltgeräte GmbH Device for protection against electric shock or for protection against overcurrent

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1831338A (en) * 1924-04-17 1931-11-10 Ass Elect Ind Protective apparatus for electrical systems
DE725747C (en) * 1928-10-03 1942-09-28 Siemens Ag Circuit arrangement for the protection of power lines against operational disturbances
DE637111C (en) * 1932-07-23 1936-10-22 Siemens Schuckertwerke Akt Ges Arrangement for the protection of electrical systems, especially power systems
DE761432C (en) * 1939-07-21 1953-06-22 Bosch Gmbh Robert Snap-off coupling for ignition devices
BE440907A (en) * 1940-03-01
DE966596C (en) * 1951-02-14 1957-08-22 Siemens Ag Protective circuit for cables or lines in companies that are at risk of explosion or firedamp
DE968200C (en) * 1951-02-14 1958-01-23 Siemens Ag Protective circuit for cables or lines in companies that are at risk of explosion or firedamp
FR1089708A (en) * 1953-12-18 1955-03-21 Land & Seekabelwerke Ag Protection device for mobile electrical pipes
DE1089865B (en) * 1959-09-15 1960-09-29 Siemens Ag Arrangement to reduce a fault current between feed lines, especially for cables and lines in underground mining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104048569A (en) * 2014-05-29 2014-09-17 西安电子工程研究所 Microsecond coaxial synchronous control switch

Also Published As

Publication number Publication date
FR1242994A (en) 1961-01-11
BE583987A (en) 1960-04-25
FR1198124A (en) 1959-12-04
GB927168A (en) 1963-05-29
FR1193579A (en) 1959-11-03
GB866031A (en) 1961-04-26
NL104787C (en) 1963-05-15
DE1801774U (en) 1959-12-10
FR1213796A (en) 1960-04-04
BE569291A (en) 1959-01-09
DE1146176B (en) 1963-03-28
DE1108307B (en) 1961-06-08
GB927167A (en) 1963-05-29
FR1179548A (en) 1959-05-26
DE1173583B (en) 1964-07-09
BE592458A (en) 1960-12-30

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