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 controlInfo
- 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
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.
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)
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)
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 |
-
1974
- 1974-08-28 FR FR7429792A patent/FR2283542A1/en active Granted
Patent Citations (5)
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)
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |