FR2275016A1 - Protective circuit breaker with test key - has resistor between summation transformer primary and secondary circuits - Google Patents

Protective circuit breaker with test key - has resistor between summation transformer primary and secondary circuits

Info

Publication number
FR2275016A1
FR2275016A1 FR7518663A FR7518663A FR2275016A1 FR 2275016 A1 FR2275016 A1 FR 2275016A1 FR 7518663 A FR7518663 A FR 7518663A FR 7518663 A FR7518663 A FR 7518663A FR 2275016 A1 FR2275016 A1 FR 2275016A1
Authority
FR
France
Prior art keywords
resistor
circuit breaker
test key
protective circuit
transformer primary
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
FR7518663A
Other languages
French (fr)
Other versions
FR2275016B1 (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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of FR2275016A1 publication Critical patent/FR2275016A1/en
Application granted granted Critical
Publication of FR2275016B1 publication Critical patent/FR2275016B1/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
    • H02H3/335—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 the main function being self testing of the device
    • 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
    • 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
    • H01H2083/045—Auxiliary switch opening testing circuit in synchronism with the main circuit

Abstract

The protective circuit breaker, with test key, has the supply lines forming a summation transformer's primary and causing its secondary voltage to operate a release system (7, 12) that opens the circuit breaking contacts in the primary side. The test circuit consists of a resistor (10) in series with the test key (2) and connected by one pair of circuit breaking contacts (14) to the transformer's primary side. The unconnected end of the key switch is coupled to the first end of the transformer's secondary winding. The second end of the secondary is connected to the primary side.
FR7518663A 1974-06-14 1975-06-13 Protective circuit breaker with test key - has resistor between summation transformer primary and secondary circuits Granted FR2275016A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742428866 DE2428866B2 (en) 1974-06-14 1974-06-14 FAULT CURRENT SWITCH WITH TEST BUTTON

Publications (2)

Publication Number Publication Date
FR2275016A1 true FR2275016A1 (en) 1976-01-09
FR2275016B1 FR2275016B1 (en) 1977-07-08

Family

ID=5918182

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7518663A Granted FR2275016A1 (en) 1974-06-14 1975-06-13 Protective circuit breaker with test key - has resistor between summation transformer primary and secondary circuits

Country Status (8)

Country Link
JP (1) JPS5111175A (en)
AT (1) AT334459B (en)
BE (1) BE829942A (en)
CH (1) CH578271A5 (en)
DE (1) DE2428866B2 (en)
ES (1) ES213134Y (en)
FR (1) FR2275016A1 (en)
IT (1) IT1038713B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504749A1 (en) * 1981-04-27 1982-10-29 Westinghouse Electric Corp SEMICONDUCTOR LOAD PROTECTION DEVICE WITH A TEST FACULTY
EP0367690A1 (en) * 1988-11-04 1990-05-09 Merlin Gerin Tripping circuit with test circuit and selfprotected remote control for opening

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT378444B (en) * 1983-02-24 1985-08-12 Biegelmeier Gottfried CIRCUIT BREAKER WITH A NEUTRAL CONDUCTOR AND FAULT CURRENT TRIP
DE4220569A1 (en) * 1992-06-24 1994-01-05 Abb Patent Gmbh Test circuit arrangement for a residual current circuit breaker
FR2927195A1 (en) * 2008-02-04 2009-08-07 Hager Electro S A S Soc Par Ac HIGH AND LOW CONNECTION ELECTRICAL CUTTING APPARATUS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504749A1 (en) * 1981-04-27 1982-10-29 Westinghouse Electric Corp SEMICONDUCTOR LOAD PROTECTION DEVICE WITH A TEST FACULTY
EP0367690A1 (en) * 1988-11-04 1990-05-09 Merlin Gerin Tripping circuit with test circuit and selfprotected remote control for opening
FR2638909A1 (en) * 1988-11-04 1990-05-11 Merlin Gerin DIFFERENTIAL TEST CIRCUIT TEST AND SELF-DIRECTED OPENING REMOTE CONTROL

Also Published As

Publication number Publication date
FR2275016B1 (en) 1977-07-08
AT334459B (en) 1976-01-25
DE2428866B2 (en) 1976-07-08
DE2428866A1 (en) 1975-12-18
BE829942A (en) 1975-10-01
ATA357775A (en) 1976-05-15
ES213134Y (en) 1976-11-16
ES213134U (en) 1976-06-16
CH578271A5 (en) 1976-07-30
IT1038713B (en) 1979-11-30
JPS5111175A (en) 1976-01-29

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Legal Events

Date Code Title Description
ST Notification of lapse