FR2283542A1 - Differential current circuit breaker - has artificial differential current created by micro-switch and resistance for remote control - Google Patents

Differential current circuit breaker - has artificial differential current created by micro-switch and resistance for remote control

Info

Publication number
FR2283542A1
FR2283542A1 FR7429792A FR7429792A FR2283542A1 FR 2283542 A1 FR2283542 A1 FR 2283542A1 FR 7429792 A FR7429792 A FR 7429792A FR 7429792 A FR7429792 A FR 7429792A FR 2283542 A1 FR2283542 A1 FR 2283542A1
Authority
FR
France
Prior art keywords
differential current
differential
artificial
micro
switch
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
FR7429792A
Other languages
French (fr)
Other versions
FR2283542B1 (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
Priority to FR7429792A priority Critical patent/FR2283542A1/en
Publication of FR2283542A1 publication Critical patent/FR2283542A1/en
Application granted granted Critical
Publication of FR2283542B1 publication Critical patent/FR2283542B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/334—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
    • 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
    • H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
    • H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)

Abstract

The differential interrupter has a multipole contact-breaker and a differential unit. The differential unit is coupled to the breaker such that a difference in current releases a device to open the contacts. The unit has a differential transformer which supplies a relay releasing the contacts. The interrupter also has a device for producing an artificial differential current by closing a microswitch (48) and introducing a shunt resistor (56). This device is connected to the differential unit which can release the breaker. This device can be remotely controlled. The microswitch (48) can also be actuated by fuses (26) with plunger action.
FR7429792A 1974-08-28 1974-08-28 Differential current circuit breaker - has artificial differential current created by micro-switch and resistance for remote control Granted FR2283542A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7429792A FR2283542A1 (en) 1974-08-28 1974-08-28 Differential current circuit breaker - has artificial differential current created by micro-switch and resistance for remote control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7429792A FR2283542A1 (en) 1974-08-28 1974-08-28 Differential current circuit breaker - has artificial differential current created by micro-switch and resistance for remote control

Publications (2)

Publication Number Publication Date
FR2283542A1 true FR2283542A1 (en) 1976-03-26
FR2283542B1 FR2283542B1 (en) 1976-12-31

Family

ID=9142727

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7429792A Granted FR2283542A1 (en) 1974-08-28 1974-08-28 Differential current circuit breaker - has artificial differential current created by micro-switch and resistance for remote control

Country Status (1)

Country Link
FR (1) FR2283542A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440609A1 (en) * 1978-11-06 1980-05-30 Merlin Gerin Auxiliary test block for differential protection circuit breaker - permits remote operation of test circuit on circuit-breaker and has fuse and protective contact shunted by resistance lamp parts
FR2516305A1 (en) * 1981-11-06 1983-05-13 Merlin Gerin CONNECTION BREAKER WITH POWER CONTROL SUBSCRIBED BY A PILOT MODULE
EP0502393A2 (en) * 1991-03-02 1992-09-09 ABBPATENT GmbH Ground fault circuit interrupter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928997A (en) * 1955-05-10 1960-03-15 Ite Circuit Breaker Ltd Coordinated circuit breaker and current limiting device
FR1226418A (en) * 1957-09-03 1960-07-11 Safety device against electrocution and insulation fault
DE1188706B (en) * 1961-03-01 1965-03-11 Schutzapp Ges Paris & Co M B H Circuit breaker using a residual current circuit breaker with a summation current transformer
DE1538487A1 (en) * 1951-01-28 1969-11-20 Felten & Guilleaume Carlswerk Device for the emergency shutdown of residual current circuit breakers in systems connected to non-earthed networks
FR2199218A1 (en) * 1972-09-08 1974-04-05 Telemecanique Electrique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538487A1 (en) * 1951-01-28 1969-11-20 Felten & Guilleaume Carlswerk Device for the emergency shutdown of residual current circuit breakers in systems connected to non-earthed networks
US2928997A (en) * 1955-05-10 1960-03-15 Ite Circuit Breaker Ltd Coordinated circuit breaker and current limiting device
FR1226418A (en) * 1957-09-03 1960-07-11 Safety device against electrocution and insulation fault
DE1188706B (en) * 1961-03-01 1965-03-11 Schutzapp Ges Paris & Co M B H Circuit breaker using a residual current circuit breaker with a summation current transformer
FR2199218A1 (en) * 1972-09-08 1974-04-05 Telemecanique Electrique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440609A1 (en) * 1978-11-06 1980-05-30 Merlin Gerin Auxiliary test block for differential protection circuit breaker - permits remote operation of test circuit on circuit-breaker and has fuse and protective contact shunted by resistance lamp parts
FR2516305A1 (en) * 1981-11-06 1983-05-13 Merlin Gerin CONNECTION BREAKER WITH POWER CONTROL SUBSCRIBED BY A PILOT MODULE
EP0079271A1 (en) * 1981-11-06 1983-05-18 Merlin Gerin Branch circuit breaker with a load control by an operator module
EP0502393A2 (en) * 1991-03-02 1992-09-09 ABBPATENT GmbH Ground fault circuit interrupter
EP0502393A3 (en) * 1991-03-02 1992-12-09 Abb Patent Gmbh Ground fault circuit interrupter

Also Published As

Publication number Publication date
FR2283542B1 (en) 1976-12-31

Similar Documents

Publication Publication Date Title
DE3363536D1 (en) Remotely controlled current switching device
MX156132A (en) IMPROVEMENTS TO ELECTRICAL SWITCH WITH CONTROL MECHANISM WITH AUTOMATIC OPENING, FOR A PROTECTIVE DEVICE
GB828754A (en) Pushbutton-operated overload switch
ES8704671A1 (en) Magnetically operated circuit breaker
ES8404757A1 (en) Electric circuit breaker with a remotely controlled static switching device.
ES472169A1 (en) Circuit breaker with manual release
US4293210A (en) Release button device for camera
FR2283542A1 (en) Differential current circuit breaker - has artificial differential current created by micro-switch and resistance for remote control
FR2440609A1 (en) Auxiliary test block for differential protection circuit breaker - permits remote operation of test circuit on circuit-breaker and has fuse and protective contact shunted by resistance lamp parts
GB633395A (en) Improvements in and connected with electromagnetically operated switches
ES287634A1 (en) Improvements introduced in electrical circuit breakers (Machine-translation by Google Translate, not legally binding)
FR2283541A1 (en) Circuit breaker with thermal release and magnetic relay - has coil spring to provide contact bias and quick separation
ES477645A1 (en) Anti-pump circuit breaker
FR2357053A1 (en) Electric circuit breaker with contact position indicator - prevents re-engagement and premature reclosure of contacts following circuit breaking
GB1306221A (en)
ES367781A3 (en) Electric switch. (Machine-translation by Google Translate, not legally binding)
GB835019A (en) Apparatus for protection of electrical equipment
GB900301A (en) Improvements in electrical apparatus for performing fine adjustment of the rams or plungers of presses
GB744261A (en) Improvements relating to electrical circuit breakers
FR2336786A1 (en) Electric circuit breaker with electronic trip - has line current detector and electronic control units to ensure tripping
US1366202A (en) Automatic switchboard
ES479641A1 (en) Control circuit for bistable relay - energises relay through thyristor, so that its contacts open shortly before and close shortly after zero crossing
GB1484631A (en) Circuit breaker
DE756141C (en) Lighting system for staircases u. Like. With a time remote switch whose magnet coil is fed from a low-voltage source
ES345359A1 (en) Power Supply Device

Legal Events

Date Code Title Description
ST Notification of lapse