DK156352C - FAULT CURRENT PROTECTION SWITCH, RESPONSE TO FAULT CURRENT WITH CURRENT CURRENT COMPONENTS - Google Patents
FAULT CURRENT PROTECTION SWITCH, RESPONSE TO FAULT CURRENT WITH CURRENT CURRENT COMPONENTSInfo
- Publication number
- DK156352C DK156352C DK334181A DK334181A DK156352C DK 156352 C DK156352 C DK 156352C DK 334181 A DK334181 A DK 334181A DK 334181 A DK334181 A DK 334181A DK 156352 C DK156352 C DK 156352C
- Authority
- DK
- Denmark
- Prior art keywords
- induction
- delta
- current
- fault
- bdyn
- Prior art date
Links
- 230000006698 induction Effects 0.000 abstract 8
- 238000004804 winding Methods 0.000 abstract 7
- 230000003068 static effect Effects 0.000 abstract 2
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000003534 oscillatory effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Protection Of Transformers (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Transformers For Measuring Instruments (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
1. Fault current protective switch (1) which responds to fault currents having d.c. components, where the magnetic core of the summing current transformer (2) possesses an induction of sufficient magnitude to induce in the secondary winding (4) a voltage necessary to actuate the release magnet by its release winding (5) when a pulsating d.c. fault current flows in its primary winding (3), and wherein a capacitor (9) is connected between the secondary winding (4) and the release winding (5) to form an oscillatory circuit tuned to the frequency of the voltage induced in the secondary winding (4) by a pulsating d.c. fault current flowing in the primary windings (3) of the summing current transformer (2), characterised in that the magnetic core (13) possesses a dynamic differential induction DELTA Bdyn between the maximum induction Bmax and the dynamic remanence induction Brdyn of : DELTA Bdyn >= 0.1 T and that the ratio of the static differential induction DELTA Bstat, between the maximum induction Bmax and the static remanence induction Brstat, to the dynamic differential induction DELTA Bdyn fulfils the equation : DELTA Bstat/DELTA Bdyn =< 1.3.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3028595 | 1980-07-28 | ||
DE19803028595 DE3028595A1 (en) | 1980-07-28 | 1980-07-28 | Fault current protection switch that responds to fault currents with direct current components |
Publications (3)
Publication Number | Publication Date |
---|---|
DK334181A DK334181A (en) | 1982-01-29 |
DK156352B DK156352B (en) | 1989-08-07 |
DK156352C true DK156352C (en) | 1989-12-27 |
Family
ID=6108299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK334181A DK156352C (en) | 1980-07-28 | 1981-07-27 | FAULT CURRENT PROTECTION SWITCH, RESPONSE TO FAULT CURRENT WITH CURRENT CURRENT COMPONENTS |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0044999B1 (en) |
JP (1) | JPS5752323A (en) |
AT (1) | ATE10991T1 (en) |
DE (2) | DE3028595A1 (en) |
DK (1) | DK156352C (en) |
ES (1) | ES504315A0 (en) |
GR (1) | GR74311B (en) |
ZA (1) | ZA815131B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JPS60163013U (en) * | 1984-04-09 | 1985-10-29 | 株式会社山形グラビヤ | Deodorant insoles for shoes |
FR2679377B1 (en) * | 1991-07-18 | 1995-03-17 | Mecagis | DEVICE FOR MECHANICALLY DAMPING A MAGNETIC TORQUE IN A HOUSING. |
DE4210748C1 (en) * | 1992-04-01 | 1993-12-16 | Vacuumschmelze Gmbh | Current transformers for pulse current sensitive residual current circuit breakers, residual current circuit breakers with such a current transformer, and method for heat treatment of the iron alloy strip for its magnetic core |
FR2733374B1 (en) * | 1995-04-18 | 1997-06-06 | Schneider Electric Sa | DIFFERENTIAL PROTECTION DEVICE SENSITIVE TO PULSED CURRENTS |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2044302B2 (en) * | 1970-09-08 | 1975-01-23 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Residual current circuit breaker |
DE2348881C3 (en) * | 1973-09-28 | 1980-10-16 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Residual current circuit breaker |
-
1980
- 1980-07-28 DE DE19803028595 patent/DE3028595A1/en not_active Withdrawn
-
1981
- 1981-07-13 DE DE8181105470T patent/DE3167930D1/en not_active Expired
- 1981-07-13 AT AT81105470T patent/ATE10991T1/en active
- 1981-07-13 EP EP81105470A patent/EP0044999B1/en not_active Expired
- 1981-07-27 ES ES504315A patent/ES504315A0/en active Granted
- 1981-07-27 DK DK334181A patent/DK156352C/en not_active IP Right Cessation
- 1981-07-27 GR GR65634A patent/GR74311B/el unknown
- 1981-07-27 ZA ZA815131A patent/ZA815131B/en unknown
- 1981-07-28 JP JP56118402A patent/JPS5752323A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
EP0044999B1 (en) | 1984-12-27 |
JPH0313809B2 (en) | 1991-02-25 |
DK334181A (en) | 1982-01-29 |
DK156352B (en) | 1989-08-07 |
ES8206910A1 (en) | 1982-08-16 |
ZA815131B (en) | 1982-07-28 |
DE3028595A1 (en) | 1982-02-25 |
JPS5752323A (en) | 1982-03-27 |
ATE10991T1 (en) | 1985-01-15 |
ES504315A0 (en) | 1982-08-16 |
EP0044999A1 (en) | 1982-02-03 |
DE3167930D1 (en) | 1985-02-07 |
GR74311B (en) | 1984-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE168496T1 (en) | CURRENT TRANSFORMER FOR PULSE CURRENT SENSITIVE RESIDUAL CURRENT BREAKERS | |
DK156352C (en) | FAULT CURRENT PROTECTION SWITCH, RESPONSE TO FAULT CURRENT WITH CURRENT CURRENT COMPONENTS | |
GR67252B (en) | ||
ES8204223A1 (en) | Earth leakage circuit-breaker | |
DE3889658D1 (en) | TRANSFORMER. | |
DK161284C (en) | FAULT CURRENT PROTECTION SWITCH, RESPONSE TO FAULT CURRENT WITH CURRENT CURRENT COMPONENTS | |
ES8202450A1 (en) | Electromagnetic devices | |
ATE26631T1 (en) | RESIDUAL CIRCUIT BREAKER. | |
ES8705165A1 (en) | Current-limiting device. | |
FR2321208A1 (en) | Detection of leakage current to earth - uses differential current transformer whose core is saturated by leakage current | |
JPS54120828A (en) | Output control transformer | |
GB1332489A (en) | Laminar core for transformers or induction coils | |
SE9504203D0 (en) | Inductive component | |
ATE28112T1 (en) | RESIDUAL CIRCUIT BREAKER. | |
FR2693050B1 (en) | CIRCUIT FOR SELECTIVE DIFFERENTIAL SWITCHES | |
GB971681A (en) | Single-phase welding transformers | |
Major et al. | The performance of sensitive earth leakage circuit breaker cores under asymmetric fault current conditions | |
DK571582A (en) | YELLOW FLOW MAGNETIZED FORK TRANSFORMERS | |
JPS57151865A (en) | Abnormal current detecting device | |
GB785212A (en) | Improvements relating to electromagnetic field-controlling devices | |
IT1054290B (en) | Excess current detection circuit - uses nonlinear magnetic coupling via saturated core with hysteresis | |
JPS5760806A (en) | Toroidal field coil |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |