ZA761087B - An improvement in or relating to two pole ground fault circuit interrupter with improved rectified supply and transient suppression for a trip circuit - Google Patents
An improvement in or relating to two pole ground fault circuit interrupter with improved rectified supply and transient suppression for a trip circuitInfo
- Publication number
- ZA761087B ZA761087B ZA761087A ZA761087A ZA761087B ZA 761087 B ZA761087 B ZA 761087B ZA 761087 A ZA761087 A ZA 761087A ZA 761087 A ZA761087 A ZA 761087A ZA 761087 B ZA761087 B ZA 761087B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- improvement
- improved
- ground fault
- transient suppression
- Prior art date
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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Breakers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/558,617 US4015169A (en) | 1975-03-14 | 1975-03-14 | Two pole ground fault circuit interrupter with improved rectified supply and transient suppression for a trip circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA761087B true ZA761087B (en) | 1977-02-23 |
Family
ID=24230263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA761087A ZA761087B (en) | 1975-03-14 | 1976-02-24 | An improvement in or relating to two pole ground fault circuit interrupter with improved rectified supply and transient suppression for a trip circuit |
Country Status (7)
Country | Link |
---|---|
US (1) | US4015169A (fr) |
JP (1) | JPS5931283B2 (fr) |
AU (1) | AU501851B2 (fr) |
CA (1) | CA1060087A (fr) |
GB (1) | GB1531913A (fr) |
IT (1) | IT1057576B (fr) |
ZA (1) | ZA761087B (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2432236A1 (fr) * | 1978-07-25 | 1980-02-22 | Lewiner Jacques | Perfectionnements aux disjoncteurs sensibles aux courants de fuites |
US4208688A (en) * | 1978-09-13 | 1980-06-17 | Westinghouse Electric Corp. | Multipole ground fault circuit interrupter with trip level adjustment |
DE3462073D1 (en) * | 1983-06-22 | 1987-02-19 | Bbc Brown Boveri & Cie | Device for detecting a short circuit in the winding of the rotor of an electric machine |
US4931894A (en) * | 1989-09-29 | 1990-06-05 | Technology Research Corporation | Ground fault current interrupter circuit with arcing protection |
US5260676A (en) * | 1991-03-27 | 1993-11-09 | Westinghouse Electric Corp. | Dual wound trip solenoid |
WO1995020257A1 (fr) * | 1994-01-24 | 1995-07-27 | Eh-Schrack Energietechnik Gmbh | Disjoncteur de protection a courant differentiel residuel |
US5786971A (en) * | 1997-07-23 | 1998-07-28 | Leviton Manufacturing Co., Inc. | Ground fault protection circuit for multiple loads with separate GFCI branches and a common neutral for the GFCI electronics |
DE10125051A1 (de) * | 2001-05-14 | 2002-11-21 | Siemens Ag | Umgehungsschaltung für den Überstromauslöser eines Niederspannungsschalters |
US6538862B1 (en) * | 2001-11-26 | 2003-03-25 | General Electric Company | Circuit breaker with a single test button mechanism |
US6738241B1 (en) * | 2002-03-27 | 2004-05-18 | Tower Manufacturing Corporation | Fireguard circuit |
US7525777B2 (en) | 2002-03-27 | 2009-04-28 | Tower Manufacturing Corporation | Fireguard circuit |
US8004810B2 (en) * | 2008-06-18 | 2011-08-23 | Elster Electricity, Llc | Meter having load control unit |
US10236108B2 (en) | 2016-08-16 | 2019-03-19 | Target Rock Division Of Curtiss-Wright Flow Control Corporation | Solenoid coil discharging circuit |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3258646A (en) * | 1966-06-28 | Fig. i prior art | ||
US2660717A (en) * | 1949-12-22 | 1953-11-24 | Herman A Hood | Electrical ground detector |
US3555360A (en) * | 1969-03-20 | 1971-01-12 | Hubbell Inc Harvey | Phase controlled ground fault circuit interrupter |
FR2081177A6 (fr) * | 1970-03-13 | 1971-12-03 | Saparel | |
US3787709A (en) * | 1971-12-13 | 1974-01-22 | Sci Systems Inc | Ground fault-sensitive detector and circuit breaker device |
US3737726A (en) * | 1972-03-28 | 1973-06-05 | Heinemann Electric Ltd | Earth leakage detector for operating circuit interrupting means |
US3852642A (en) * | 1972-11-01 | 1974-12-03 | Westinghouse Electric Corp | Sensing amplifier and trip circuit particularly for ground fault circuit interrupter |
US3895263A (en) * | 1974-08-27 | 1975-07-15 | Ite Imperial Corp | Grounded neutral detector drive circuit for two pole ground fault interrupter |
-
1975
- 1975-03-14 US US05/558,617 patent/US4015169A/en not_active Expired - Lifetime
-
1976
- 1976-02-24 ZA ZA761087A patent/ZA761087B/xx unknown
- 1976-02-25 GB GB7381/76A patent/GB1531913A/en not_active Expired
- 1976-02-26 AU AU11448/76A patent/AU501851B2/en not_active Expired
- 1976-03-02 CA CA246,960A patent/CA1060087A/fr not_active Expired
- 1976-03-12 IT IT21182/76A patent/IT1057576B/it active
- 1976-03-15 JP JP51027227A patent/JPS5931283B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AU1144876A (en) | 1977-09-01 |
JPS5931283B2 (ja) | 1984-08-01 |
AU501851B2 (en) | 1979-07-05 |
US4015169A (en) | 1977-03-29 |
IT1057576B (it) | 1982-03-30 |
CA1060087A (fr) | 1979-08-07 |
GB1531913A (en) | 1978-11-15 |
JPS51115631A (en) | 1976-10-12 |
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