ZA754168B - Portable ground fault circuit interrupter - Google Patents
Portable ground fault circuit interrupterInfo
- Publication number
- ZA754168B ZA754168B ZA00754168A ZA754168A ZA754168B ZA 754168 B ZA754168 B ZA 754168B ZA 00754168 A ZA00754168 A ZA 00754168A ZA 754168 A ZA754168 A ZA 754168A ZA 754168 B ZA754168 B ZA 754168B
- Authority
- ZA
- South Africa
- Prior art keywords
- ground fault
- circuit interrupter
- fault circuit
- portable ground
- portable
- Prior art date
Links
Classifications
-
- 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
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48604574A | 1974-07-05 | 1974-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA754168B true ZA754168B (en) | 1976-06-30 |
Family
ID=23930390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00754168A ZA754168B (en) | 1974-07-05 | 1975-06-30 | Portable ground fault circuit interrupter |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA1058739A (it) |
DE (1) | DE2529713A1 (it) |
FR (1) | FR2277429A1 (it) |
GB (1) | GB1521082A (it) |
IT (1) | IT1036450B (it) |
ZA (1) | ZA754168B (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5144516A (en) * | 1991-02-04 | 1992-09-01 | Wing Shing Products Company, Ltd. | Leakage current circuit interrupter device |
NO304860B1 (no) * | 1991-07-22 | 1999-02-22 | Pdl Holdings Ltd | Brytermekanisme |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3555360A (en) * | 1969-03-20 | 1971-01-12 | Hubbell Inc Harvey | Phase controlled ground fault circuit interrupter |
-
1975
- 1975-06-24 CA CA230,013A patent/CA1058739A/en not_active Expired
- 1975-06-30 GB GB27489/75A patent/GB1521082A/en not_active Expired
- 1975-06-30 ZA ZA00754168A patent/ZA754168B/xx unknown
- 1975-07-03 DE DE19752529713 patent/DE2529713A1/de active Granted
- 1975-07-04 IT IT68744/75A patent/IT1036450B/it active
- 1975-07-04 FR FR7521027A patent/FR2277429A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2529713C2 (it) | 1987-10-22 |
FR2277429A1 (fr) | 1976-01-30 |
IT1036450B (it) | 1979-10-30 |
FR2277429B1 (it) | 1981-05-29 |
DE2529713A1 (de) | 1976-01-22 |
CA1058739A (en) | 1979-07-17 |
GB1521082A (en) | 1978-08-09 |
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