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 circuitsInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
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.
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)
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)
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 |
-
1974
- 1974-06-14 DE DE19742428866 patent/DE2428866B2/en active Pending
-
1975
- 1975-05-12 AT AT357775A patent/AT334459B/en not_active IP Right Cessation
- 1975-06-05 IT IT2404275A patent/IT1038713B/en active
- 1975-06-05 CH CH723275A patent/CH578271A5/xx not_active IP Right Cessation
- 1975-06-06 BE BE157086A patent/BE829942A/en unknown
- 1975-06-12 JP JP7138075A patent/JPS5111175A/en active Pending
- 1975-06-13 FR FR7518663A patent/FR2275016A1/en active Granted
- 1975-06-13 ES ES1975213134U patent/ES213134Y/en not_active Expired
Cited By (3)
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 |
---|---|
DE2428866A1 (en) | 1975-12-18 |
ATA357775A (en) | 1976-05-15 |
CH578271A5 (en) | 1976-07-30 |
ES213134U (en) | 1976-06-16 |
IT1038713B (en) | 1979-11-30 |
AT334459B (en) | 1976-01-25 |
FR2275016B1 (en) | 1977-07-08 |
DE2428866B2 (en) | 1976-07-08 |
ES213134Y (en) | 1976-11-16 |
BE829942A (en) | 1975-10-01 |
JPS5111175A (en) | 1976-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |