EP0310943A3 - Electric switch gear - Google Patents

Electric switch gear Download PDF

Info

Publication number
EP0310943A3
EP0310943A3 EP88116084A EP88116084A EP0310943A3 EP 0310943 A3 EP0310943 A3 EP 0310943A3 EP 88116084 A EP88116084 A EP 88116084A EP 88116084 A EP88116084 A EP 88116084A EP 0310943 A3 EP0310943 A3 EP 0310943A3
Authority
EP
European Patent Office
Prior art keywords
fault current
switch mechanism
circuit breaker
currents
switchgear
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.)
Granted
Application number
EP88116084A
Other languages
German (de)
Other versions
EP0310943A2 (en
EP0310943B1 (en
Inventor
Hermann Schmitt
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.)
ASEA BROWN BOVERI AG
Original Assignee
ASEA BROWN BOVERI 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 ASEA BROWN BOVERI AG filed Critical ASEA BROWN BOVERI AG
Priority to AT88116084T priority Critical patent/ATE103416T1/en
Publication of EP0310943A2 publication Critical patent/EP0310943A2/en
Publication of EP0310943A3 publication Critical patent/EP0310943A3/en
Application granted granted Critical
Publication of EP0310943B1 publication Critical patent/EP0310943B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being unbalance of two or more currents or voltages

Abstract

Electrical switchgear for simultaneous protection against excess currents, short-circuit currents and fault currents in individual circuits require the simultaneous use of a line circuit breaker and of a fault current circuit breaker. Such known switchgears, termed line and fault current circuit breakers, occupy a comparatively large amount of space in the distribution units because of the large space requirement of the fault current circuit breaker. The object of the invention is thus to develop switchgear which requires less space. To achieve this object it is proposed that the fault current protection pole of the single-pole switchgear also be arranged in a housing of modular construction, an auxiliary switch mechanism being connected between the fault current trip device (60) and the main switch mechanism, to compensate for the reduced tripping force of the fault current trip device (60), whose dimensions are limited, which auxiliary switch mechanism amplifies the trip pulse transmitted by a trip cam (61) of the fault current trip device (60) and thus leads to unlatching of the main switch mechanism. The principle of the construction of the auxiliary switch mechanism (44) is shown in a schematic representation, the sequence of the switch action being explained by instantaneous recordings of intermediate positions. <IMAGE>
EP88116084A 1987-10-05 1988-09-29 Electric switch gear Expired - Lifetime EP0310943B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88116084T ATE103416T1 (en) 1987-10-05 1988-09-29 ELECTRICAL SWITCHING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3733595 1987-10-05
DE19873733595 DE3733595A1 (en) 1987-10-05 1987-10-05 ELECTRICAL SWITCHGEAR

Publications (3)

Publication Number Publication Date
EP0310943A2 EP0310943A2 (en) 1989-04-12
EP0310943A3 true EP0310943A3 (en) 1990-06-20
EP0310943B1 EP0310943B1 (en) 1994-03-23

Family

ID=6337628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116084A Expired - Lifetime EP0310943B1 (en) 1987-10-05 1988-09-29 Electric switch gear

Country Status (4)

Country Link
EP (1) EP0310943B1 (en)
AT (1) ATE103416T1 (en)
DE (2) DE3733595A1 (en)
ES (1) ES2053666T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410726B (en) * 1993-03-18 2003-07-25 Felten & Guilleaume Ag Oester BREAKERS
DE19735413B4 (en) * 1997-08-14 2007-11-29 Siemens Ag Tripping device for a circuit breaker
EP0951045A3 (en) * 1998-04-14 2000-07-12 ABBPATENT GmbH Ground fault circuit braker
DE102007043253B4 (en) * 2007-09-11 2014-04-24 Siemens Aktiengesellschaft Handle bridge, residual current device and system of residual current device and circuit breaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908154A (en) * 1974-09-13 1975-09-23 Ite Imperial Corp Two pole ground fault circuit protector
FR2409592A1 (en) * 1977-11-21 1979-06-15 Legrand Sa Double action circuit breaker - consists of two interlocked modules with one acting on overloads and one on differential currents
FR2553572A1 (en) * 1983-10-13 1985-04-19 Ave Spa Improved differential breaker switch of reduced bulk
EP0143682A1 (en) * 1983-10-04 1985-06-05 Hager Electro S.A. Automatic circuit breakers, particularly earth fault and overload circuit breakers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508428B2 (en) * 1975-02-27 1978-10-12 Brown, Boveri & Cie Ag, 6800 Mannheim Residual current circuit breaker
DE2651596C3 (en) * 1976-11-12 1979-05-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Residual current component combined with a miniature circuit breaker
AT374969B (en) * 1982-08-19 1984-06-25 Biegelmeier Gottfried CIRCUIT BREAKER WITH ERROR CURRENT RELEASE
DE3342469A1 (en) * 1983-11-24 1985-06-05 Bbc Brown Boveri & Cie ELECTRIC SWITCH

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908154A (en) * 1974-09-13 1975-09-23 Ite Imperial Corp Two pole ground fault circuit protector
FR2409592A1 (en) * 1977-11-21 1979-06-15 Legrand Sa Double action circuit breaker - consists of two interlocked modules with one acting on overloads and one on differential currents
EP0143682A1 (en) * 1983-10-04 1985-06-05 Hager Electro S.A. Automatic circuit breakers, particularly earth fault and overload circuit breakers
FR2553572A1 (en) * 1983-10-13 1985-04-19 Ave Spa Improved differential breaker switch of reduced bulk

Also Published As

Publication number Publication date
ATE103416T1 (en) 1994-04-15
DE3733595A1 (en) 1989-04-20
EP0310943A2 (en) 1989-04-12
DE3888617D1 (en) 1994-04-28
ES2053666T3 (en) 1994-08-01
EP0310943B1 (en) 1994-03-23

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