ES8201357A1 - Low-voltage multi-pole differential switch. - Google Patents

Low-voltage multi-pole differential switch.

Info

Publication number
ES8201357A1
ES8201357A1 ES498187A ES498187A ES8201357A1 ES 8201357 A1 ES8201357 A1 ES 8201357A1 ES 498187 A ES498187 A ES 498187A ES 498187 A ES498187 A ES 498187A ES 8201357 A1 ES8201357 A1 ES 8201357A1
Authority
ES
Spain
Prior art keywords
shaft
contact
arm
contacts
control mechanism
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
ES498187A
Other languages
Spanish (es)
Other versions
ES498187A0 (en
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.)
Merlin Gerin SA
Original Assignee
Merlin Gerin 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 Merlin Gerin SA filed Critical Merlin Gerin SA
Publication of ES498187A0 publication Critical patent/ES498187A0/en
Publication of ES8201357A1 publication Critical patent/ES8201357A1/en
Expired 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
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
  • Keying Circuit Devices (AREA)

Abstract

1. Multi-pole low-voltage differential switch with an insulated moulded housing (12) comprising : - a differential current detector constituted by an annular core transformer (32) totalising the currents of the a. c. network to be protected, - a relay (28) operated by said detector to free the interlock of a control mechanism (26) on appearance of a differential fault current, - a switch shaft (60) in form of a oblong runner operated by said control mechanism (26) and supporting staggered along the shaft (60) contact arms (68) of the movable contacts (78) of the different poles extending transversely to said shaft, this shaft being mounted with longitudinal sliding motion in order to move said movable contacts (78) selectively in the open position and in the closed position in contact with the coupled stationary contacts (80), characterized by the fact that each contact arm (68) is mounted elastically on the shaft (60) in order to execute a limited relative pivoting and translation movement, said arm (68) extending on both sides of the shaft (60) and supporting on one of its ends the movable contact (78) which can cooperate with the coupled stationary contact (80), the opposite end of the arm being connected by a strip (86) with terminals (88) of the apparatus and being capable to move unrestrainedly, a stop (104) limiting indirectionnally the movement of said opposite end into the closing direction of the contacts.
ES498187A 1980-01-31 1980-12-26 Low-voltage multi-pole differential switch. Expired ES8201357A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8002327A FR2475291A1 (en) 1980-01-31 1980-01-31 LV multipolar differential protection switch - has spring-mounted contact arms with limited relative rotation and translation

Publications (2)

Publication Number Publication Date
ES498187A0 ES498187A0 (en) 1981-12-16
ES8201357A1 true ES8201357A1 (en) 1981-12-16

Family

ID=9238158

Family Applications (1)

Application Number Title Priority Date Filing Date
ES498187A Expired ES8201357A1 (en) 1980-01-31 1980-12-26 Low-voltage multi-pole differential switch.

Country Status (5)

Country Link
EP (1) EP0033671B1 (en)
DE (1) DE3167762D1 (en)
ES (1) ES8201357A1 (en)
FR (1) FR2475291A1 (en)
YU (1) YU40245B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500209A1 (en) * 1981-02-18 1982-08-20 Merlin Gerin DIFFERENTIAL SWITCH ADAPTER
US4641217A (en) * 1985-05-31 1987-02-03 General Electric Company Two pole ground fault circuit breaker
ES2064837T3 (en) * 1991-09-02 1995-02-01 Siemens Ag DEFECT CURRENT PROTECTION SWITCH.
FR2923939A1 (en) * 2007-11-16 2009-05-22 Schneider Electric Ind Sas ELECTRIC CUTTING APPARATUS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR224860A (en) * 1973-04-05
DE2440048C3 (en) * 1974-08-21 1979-09-06 Condor-Werk Gebr. Frede Kg, Elektro- Und Maschinenfabrik, 4415 Westkirchen Residual current circuit breaker
DE2706647A1 (en) * 1977-02-17 1978-08-24 Bbc Brown Boveri & Cie Faulty current protective circuit breaker - has stationary support for current supply to moving contact lever, coacting with lever conductive surface

Also Published As

Publication number Publication date
FR2475291B1 (en) 1982-09-03
FR2475291A1 (en) 1981-08-07
ES498187A0 (en) 1981-12-16
EP0033671B1 (en) 1984-12-19
YU40245B (en) 1985-08-31
DE3167762D1 (en) 1985-01-31
EP0033671A2 (en) 1981-08-12
EP0033671A3 (en) 1981-08-26
YU21381A (en) 1983-06-30

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20010201