NL6918114A - - Google Patents
Info
- Publication number
- NL6918114A NL6918114A NL6918114A NL6918114A NL6918114A NL 6918114 A NL6918114 A NL 6918114A NL 6918114 A NL6918114 A NL 6918114A NL 6918114 A NL6918114 A NL 6918114A NL 6918114 A NL6918114 A NL 6918114A
- Authority
- NL
- Netherlands
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
- H02H3/332—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
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- 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
- H01F38/32—Circuit arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
- H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1800968A CH505391A (de) | 1968-12-03 | 1968-12-03 | Einrichtung zur Überwachung von Stromdifferenzen in einer elektrischen Anlage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6918114A true NL6918114A (xx) | 1970-06-05 |
Family
ID=4429738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6918114A NL6918114A (xx) | 1968-12-03 | 1969-12-02 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE742555A (xx) |
| CH (1) | CH505391A (xx) |
| DE (1) | DE1960290A1 (xx) |
| FR (1) | FR2025082A1 (xx) |
| NL (1) | NL6918114A (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2321208A1 (fr) * | 1975-08-11 | 1977-03-11 | Saparel | Systemes differentiels de protection |
| DE2602534A1 (de) * | 1976-01-23 | 1977-07-28 | Siemens Ag | Fehlerstrom-schutzschalter |
| LU78600A1 (de) * | 1977-11-28 | 1979-06-13 | Gath N | Fehlerstromschutzschalter |
| LU78992A1 (de) * | 1978-02-02 | 1979-09-06 | N Gath | Fehlerstromschutzschalter |
| JPS55127826A (en) * | 1979-03-26 | 1980-10-03 | Fuji Electric Co Ltd | Leakage breaker |
-
1968
- 1968-12-03 CH CH1800968A patent/CH505391A/de not_active IP Right Cessation
-
1969
- 1969-12-02 FR FR6941456A patent/FR2025082A1/fr not_active Withdrawn
- 1969-12-02 DE DE19691960290 patent/DE1960290A1/de active Pending
- 1969-12-02 NL NL6918114A patent/NL6918114A/xx unknown
- 1969-12-03 BE BE742555D patent/BE742555A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1960290A1 (de) | 1970-06-18 |
| CH505391A (de) | 1971-03-31 |
| BE742555A (xx) | 1970-05-14 |
| FR2025082A1 (xx) | 1970-09-04 |