AT271620B - Summenstromwandler für Fehlerstromschutzschalter - Google Patents
Summenstromwandler für FehlerstromschutzschalterInfo
- Publication number
- AT271620B AT271620B AT315067A AT315067A AT271620B AT 271620 B AT271620 B AT 271620B AT 315067 A AT315067 A AT 315067A AT 315067 A AT315067 A AT 315067A AT 271620 B AT271620 B AT 271620B
- Authority
- AT
- Austria
- Prior art keywords
- circuit breaker
- summation
- current transformer
- residual
- current circuit
- Prior art date
Links
Classifications
-
- 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
- H01F38/38—Instruments transformers for polyphase ac
-
- 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
- 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
- H01H2083/146—Provisions for avoiding disadvantages of having asymetrical primaries, e.g. induction of a magnetic field even by zero difference current
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES0103329 | 1966-04-22 | ||
FR103786A FR1520183A (fr) | 1966-04-22 | 1967-04-21 | Transformateur totalisateur de courant pour disjoncteurs de protection contre les courants de défaut |
Publications (1)
Publication Number | Publication Date |
---|---|
AT271620B true AT271620B (de) | 1969-06-10 |
Family
ID=55588695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT315067A AT271620B (de) | 1966-04-22 | 1967-03-31 | Summenstromwandler für Fehlerstromschutzschalter |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT271620B (de) |
DE (1) | DE1563332A1 (de) |
FR (1) | FR1520183A (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7810616U1 (de) * | 1978-04-10 | 1979-09-20 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Summenstromwandler, insbesondere fuer fehlerstromschutzschalter |
DE4410076A1 (de) * | 1994-03-23 | 1995-09-28 | Valentron Ag | Fehlerstromschutzschalter |
-
1966
- 1966-04-22 DE DE19661563332 patent/DE1563332A1/de active Pending
-
1967
- 1967-03-31 AT AT315067A patent/AT271620B/de active
- 1967-04-21 FR FR103786A patent/FR1520183A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1520183A (fr) | 1968-04-05 |
DE1563332A1 (de) | 1970-01-29 |
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