GB788208A - Improvements in devices for interrupting electric currents by explosive means - Google Patents

Improvements in devices for interrupting electric currents by explosive means

Info

Publication number
GB788208A
GB788208A GB1277/56A GB127756A GB788208A GB 788208 A GB788208 A GB 788208A GB 1277/56 A GB1277/56 A GB 1277/56A GB 127756 A GB127756 A GB 127756A GB 788208 A GB788208 A GB 788208A
Authority
GB
United Kingdom
Prior art keywords
conductor
casing
fuse
parallel
interrupting
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
GB1277/56A
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.)
Calor Emag AG
Original Assignee
Calor Emag AG
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 Calor Emag AG filed Critical Calor Emag AG
Publication of GB788208A publication Critical patent/GB788208A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
    • H01H39/006—Opening by severing a conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/106—Adaptation for built-in fuses fuse and switch being connected in parallel

Abstract

788,208. Cut-outs. CALOR-EMAG ELEKTIZITATS-AKT.-GES. Jan. 13, 1956 [Jan. 15, 1955; July 20, 1955; Aug. 10, 1955; Nov. 12, 1955], No. 1277/56. Class 38 (1). A current interrupting device comprises a tubular conductor 3 containing an explosive charge 5 and connected to conical heat-dissipating members 2 to which conductors 12 or blade contacts are connected, a lead-lined and externally reinforced casing 1 surrounding the members 2, 3. The charge 5, which forms part of a cartridge 4, is inserted through a hole in one of the members 2 and may be ignited at any desired time to rupture the conductor 3 by connecting wires 6, 7 to a potential source. Alternatively ignition means which act mechanically or purely thermally may be employed. The conductor 3 may have longitudinal grooves or slots so that when it is ruptured, the ends fan out and form nozzles through which arc products and arc-quenching material, if provided, are discharged from the casing. A fuse wire, located in an arc-quenching chamber exteriorly of casing 1, is connected in parallel with conductor 3 to form auxiliary disconnecting means which ruptures subsequently to conductor 3 (Fig. 6, not shown). Alternatively several fuse wires 22<SP>11</SP>, Fig. 7, connected in parallel with conductor 3 may be located in the annular space between casing 1 and a surrounding jacket 24, such space being filled with arcquenching material. The fuse wires may be arranged to fuse successively in order to prevent over-voltages and to this end a resistance is connected in series with each fuse wire, the resistances being of gradually increasing value. For interrupting a high voltage circuit, a plurality of interrupting devices may be connected in series and operated simultaneously, each device having a parallel connected fuse wire with a series resistance. Fig. 10 shows three interrupting devices 3 located in a common casing 11 with a jacket 241 as in Fig. 7, parallel-connected fuse wires 221, 22<SP>11</SP> being located in the space between the casing and jacket and the fuse wire 22<SP>1</SP> being connected at 32, 33 to the junctions of the devices 3, these connections, however, being optional, as also is the provision of resistances.
GB1277/56A 1955-01-15 1956-01-13 Improvements in devices for interrupting electric currents by explosive means Expired GB788208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE10103A DE1097016B (en) 1955-01-15 1955-01-15 Device for the rapid interruption of short-circuit currents

Publications (1)

Publication Number Publication Date
GB788208A true GB788208A (en) 1957-12-23

Family

ID=7067785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1277/56A Expired GB788208A (en) 1955-01-15 1956-01-13 Improvements in devices for interrupting electric currents by explosive means

Country Status (5)

Country Link
US (1) US2892062A (en)
CH (1) CH337911A (en)
DE (1) DE1097016B (en)
FR (1) FR1139130A (en)
GB (1) GB788208A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263048A (en) * 1963-07-10 1966-07-26 E M P Electric Ltd Trip devices for electric fuses
EP4033510A4 (en) * 2020-12-11 2022-08-03 Xi' An Sinofuse Electric Co., Ltd. Mechanical breaking and fusing combined multi-fracture excitation fuse

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US2983801A (en) * 1959-02-20 1961-05-09 Gen Electric High current disconnect device
US3110855A (en) * 1960-07-28 1963-11-12 Ite Circuit Breaker Ltd Polarity sensitive fuse
GB1240035A (en) * 1968-01-20 1971-07-21 Fuji Electric Co Ltd Electric circuit breaker
DE2345196A1 (en) * 1973-09-07 1975-03-20 Univ Moskovsk SWITCH WITH EXPLOSIVE EFFECT
DE2362807A1 (en) * 1973-12-18 1975-06-19 Univ Moskovsk DISCONNECTING DEVICE FOR DISCONNECTING LARGE CURRENTS WITH THE HELP OF A Blasting Charge
US3958206A (en) * 1975-06-12 1976-05-18 General Electric Company Chemically augmented electrical fuse
US4174471A (en) * 1978-03-27 1979-11-13 The United States Of America As Represented By The Secretary Of The Navy Explosively actuated opening switch
CH635461A5 (en) * 1979-01-11 1983-03-31 Bbc Brown Boveri & Cie POWER SWITCH WITH BLOCKING RELEASE.
DE2909252A1 (en) * 1979-02-15 1980-08-28 Bbc Brown Boveri & Cie POWER SWITCH
US4342978A (en) * 1979-03-19 1982-08-03 S&C Electric Company Explosively-actuated switch and current limiting, high voltage fuse using same
US4571468A (en) * 1982-07-16 1986-02-18 University Of Texas System Inductive store opening switch
US4479105A (en) * 1983-03-08 1984-10-23 G & W Electric Company Pyrotechnic current interrupter
US4920446A (en) * 1986-04-18 1990-04-24 G & W Electric Co. Pyrotechnically-assisted current interrupter
DE10052545A1 (en) * 2000-10-23 2002-05-02 Peter Lell Pyrotechnic security element
EP1447640B1 (en) * 2003-02-04 2007-12-05 Delphi Technologies, Inc. Pyro-mechanical breaker
US7875997B2 (en) * 2003-08-08 2011-01-25 Delphi Technologies, Inc. Circuit interruption device
US7772958B2 (en) * 2004-09-09 2010-08-10 Lisa Dräxlmaier GmbH Load shedder
ES2290809T3 (en) * 2005-04-08 2008-02-16 Auto Kabel Managementgesellschaft Mbh SWITCH FOR ELECTRIC POWER LINES OF MOTOR VEHICLES.
DE102005050044A1 (en) * 2005-10-19 2007-05-03 Moeller Gmbh Device for current limitation
DE102007014339A1 (en) * 2007-03-26 2008-10-02 Robert Bosch Gmbh Thermal fuse for use in electrical modules
DE102008047256A1 (en) * 2008-09-14 2010-03-25 Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co. Method for disconnecting current during high voltage with disconnecting unit, involves controlling flowing current of controlling medium by backup units
DE102008055904B4 (en) * 2008-11-05 2018-03-22 Auto-Kabel Management Gmbh Plug connection for an occupant protection device
EP3292557B1 (en) * 2015-05-07 2019-07-31 ABB Schweiz AG Permanent short-circuit device
DE102019104451A1 (en) * 2019-02-21 2019-04-11 Peter Lell Electric circuit breaker with a tubular separator of varying wall thickness

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DE206993C (en) *
DE133836C (en) *
DE620641C (en) * 1935-10-24 Willy Mock Safety switch for maximum electrical power
US466761A (en) * 1892-01-05 James a
US723183A (en) * 1901-06-29 1903-03-17 Gen Electric Circuit-breaker.
US1221275A (en) * 1915-11-18 1917-04-03 W F Bleecker Cartridge fuse.
US1856701A (en) * 1925-10-16 1932-05-03 Westinghouse Electric & Mfg Co Electrical fuse for high or low voltage
US1917315A (en) * 1928-11-21 1933-07-11 Metropolitan Device Corp High tension fuse
US1818822A (en) * 1930-04-12 1931-08-11 Gen Electric Resistor fuse
DE568887C (en) * 1930-05-04 1933-01-27 Siemens Schuckertwerke Akt Ges Compressed gas switch
US2041590A (en) * 1934-06-09 1936-05-19 Gen Electric Fuse
DE724710C (en) * 1937-03-24 1942-09-04 Voigt & Haeffner Ag Closed, remotely controllable fuse
US2175250A (en) * 1938-06-01 1939-10-10 Du Pont Electric fuse having combustible elements comprising lead salts of nitrophenols
US2281266A (en) * 1940-01-31 1942-04-28 Railway & Industrial Eng Co Circuit interrupter
CH219782A (en) * 1940-04-10 1942-02-28 Licentia Gmbh Safety fuse with display and trigger device.
US2337504A (en) * 1940-09-19 1943-12-21 Westinghouse Electric & Mfg Co Current limiting fuse
DE735778C (en) * 1941-05-04 1943-05-25 Siemens Ag Switching arrangement, consisting of transformer and switching reactor
BE463765A (en) * 1942-11-18
US2559024A (en) * 1944-07-19 1951-07-03 Electric Service Mfg Company Electrical disconnector
US2548112A (en) * 1949-08-06 1951-04-10 Mcgraw Electric Co Resistor type isolator for lightning arresters
US2551858A (en) * 1949-08-22 1951-05-08 Mcgraw Electric Co Resistor type of isolator for lightining arresters
US2721240A (en) * 1949-12-02 1955-10-18 Jr Howard C Filbert Explosive pressure operated switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3263048A (en) * 1963-07-10 1966-07-26 E M P Electric Ltd Trip devices for electric fuses
EP4033510A4 (en) * 2020-12-11 2022-08-03 Xi' An Sinofuse Electric Co., Ltd. Mechanical breaking and fusing combined multi-fracture excitation fuse
US11784021B2 (en) 2020-12-11 2023-10-10 Xi' An Sinofuse Electric Co., Ltd. Mechanical breaking and fusing combined multi-fracture excitation fuse

Also Published As

Publication number Publication date
FR1139130A (en) 1957-06-25
DE1097016B (en) 1961-01-12
CH337911A (en) 1959-04-30
US2892062A (en) 1959-06-23

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