JPS476429A - - Google Patents
Info
- Publication number
- JPS476429A JPS476429A JP6962271A JP6962271A JPS476429A JP S476429 A JPS476429 A JP S476429A JP 6962271 A JP6962271 A JP 6962271A JP 6962271 A JP6962271 A JP 6962271A JP S476429 A JPS476429 A JP S476429A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
-
- 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 unbalance 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 unbalance 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
- H02H3/332—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 responsive to dc component in the fault current
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702044302 DE2044302B2 (en) | 1970-09-08 | 1970-09-08 | Residual current circuit breaker |
| DE2062694A DE2062694B2 (en) | 1970-09-08 | 1970-12-19 | Residual current circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS476429A true JPS476429A (en) | 1972-04-10 |
Family
ID=25759694
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6962271A Pending JPS476429A (en) | 1970-09-08 | 1971-09-08 | |
| JP10359071A Pending JPS4712829A (en) | 1970-09-08 | 1971-12-20 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10359071A Pending JPS4712829A (en) | 1970-09-08 | 1971-12-20 |
Country Status (8)
| Country | Link |
|---|---|
| JP (2) | JPS476429A (en) |
| AT (1) | AT315949B (en) |
| BE (1) | BE847794Q (en) |
| CH (1) | CH538773A (en) |
| DE (1) | DE2062694B2 (en) |
| DK (1) | DK142664C (en) |
| FR (1) | FR2106374B1 (en) |
| GB (1) | GB1369817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112955989A (en) * | 2018-11-08 | 2021-06-11 | Tdk株式会社 | Electromagnetic induction type power generation device |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU78600A1 (en) * | 1977-11-28 | 1979-06-13 | Gath N | Fault current protection switch |
| US4366520A (en) * | 1981-03-25 | 1982-12-28 | Magnetic Metals Corporation | Differential transformer core for pulse currents |
| FR2520164A1 (en) * | 1982-01-19 | 1983-07-22 | Merlin Gerin | OWN CURRENT DIFFERENTIAL TRIGGERING DEVICE |
| DE3202320A1 (en) * | 1982-01-26 | 1983-07-28 | Siemens AG, 1000 Berlin und 8000 München | Fault current protection switch that responds to fault currents with direct current components |
| DE3244670A1 (en) * | 1982-12-02 | 1984-06-07 | Siemens AG, 1000 Berlin und 8000 München | Fault current protection switch |
| US4622846A (en) * | 1985-11-05 | 1986-11-18 | Halliburton Company | Consistency and static gel strength measuring device and method |
| FR2653610B1 (en) * | 1989-10-25 | 1991-12-27 | Etude Realisa Disjoncteurs | SELECTIVE DIFFERENTIAL SWITCH WITH FAULT CURRENT. |
| DE19907320C2 (en) * | 1999-02-20 | 2001-03-08 | Aloys Wobben | Toroidal core and its use |
| FR2993058B1 (en) * | 2012-07-05 | 2014-08-08 | Hager Electro Sas | DEVICE FOR DIFFERENTIAL PROTECTION. |
| KR102539688B1 (en) | 2016-04-28 | 2023-06-07 | 엘에스일렉트릭(주) | Leakage Current Detector |
| CN107658092B (en) * | 2016-07-25 | 2020-06-05 | 施耐德电气工业公司 | Ferrite core, current transformer and earth leakage protection switch |
-
1970
- 1970-12-19 DE DE2062694A patent/DE2062694B2/en not_active Withdrawn
-
1971
- 1971-08-13 CH CH1197071A patent/CH538773A/en not_active IP Right Cessation
- 1971-08-20 DK DK408471A patent/DK142664C/en not_active IP Right Cessation
- 1971-09-07 FR FR7132314A patent/FR2106374B1/fr not_active Expired
- 1971-09-08 JP JP6962271A patent/JPS476429A/ja active Pending
- 1971-09-08 AT AT779671A patent/AT315949B/en not_active IP Right Cessation
- 1971-09-08 GB GB4198471A patent/GB1369817A/en not_active Expired
- 1971-12-20 JP JP10359071A patent/JPS4712829A/ja active Pending
-
1976
- 1976-10-29 BE BE171920A patent/BE847794Q/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112955989A (en) * | 2018-11-08 | 2021-06-11 | Tdk株式会社 | Electromagnetic induction type power generation device |
Also Published As
| Publication number | Publication date |
|---|---|
| AT315949B (en) | 1974-06-25 |
| DK142664B (en) | 1980-12-08 |
| JPS4712829A (en) | 1972-06-28 |
| FR2106374A1 (en) | 1972-05-05 |
| DE2062694A1 (en) | 1972-06-29 |
| CH538773A (en) | 1973-06-30 |
| FR2106374B1 (en) | 1976-04-30 |
| DE2062694B2 (en) | 1975-05-28 |
| GB1369817A (en) | 1974-10-09 |
| BE847794Q (en) | 1977-02-14 |
| DK142664C (en) | 1981-09-14 |