ES8200509A1 - Release for a fault current protective switch. - Google Patents
Release for a fault current protective switch.Info
- Publication number
- ES8200509A1 ES8200509A1 ES497894A ES497894A ES8200509A1 ES 8200509 A1 ES8200509 A1 ES 8200509A1 ES 497894 A ES497894 A ES 497894A ES 497894 A ES497894 A ES 497894A ES 8200509 A1 ES8200509 A1 ES 8200509A1
- Authority
- ES
- Spain
- Prior art keywords
- yoke
- limb
- fault current
- release
- limbs
- Prior art date
- 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.)
- Expired
Links
- 230000001681 protective effect Effects 0.000 title 1
- 230000004907 flux Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
-
- 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
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Electromagnets (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
Fault current release having a U-shaped magnetic yoke (10), a permanent magnet (32) for the pre-magnetisation of the magnetic yoke, a hinged armature (26), which is loaded in the open direction by a spring (30), and, in the rest state, is attracted to the pole surfaces of the yoke (10), and having a coil (18,20) which is wound round a limb of the U-shaped magnetic yoke and is connected to a secondary winding of a summing current transformer, do not respond to direct fault currents in specific directions. In order to achieve directional insensitivity, the permanent magnet (32) is arranged such that the magnetic flux or the magnetic field direction produced through it is directed equally into the two yoke limbs (14,16). A coil (18,20) is wound around each of the two limbs, which are connected to one another such that, depending on the direction of the fault current, the magnetic field in the one limb is amplified and that in the other limb is at least partially increased.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792951899 DE2951899A1 (en) | 1979-12-21 | 1979-12-21 | TRIGGER FOR A FAULT CURRENT CIRCUIT BREAKER |
Publications (2)
Publication Number | Publication Date |
---|---|
ES497894A0 ES497894A0 (en) | 1981-11-01 |
ES8200509A1 true ES8200509A1 (en) | 1981-11-01 |
Family
ID=6089348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES497894A Expired ES8200509A1 (en) | 1979-12-21 | 1980-12-18 | Release for a fault current protective switch. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0031474A3 (en) |
DE (1) | DE2951899A1 (en) |
DK (1) | DK530380A (en) |
ES (1) | ES8200509A1 (en) |
ZA (1) | ZA8007362D (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8124466U1 (en) * | 1981-08-21 | 1983-01-27 | Brown, Boveri & Cie Ag, 6800 Mannheim | Electromagnetic trigger |
CN102347176A (en) * | 2011-09-19 | 2012-02-08 | 广东天富电气集团有限公司 | Working method of electromagnetic tripping device |
DE102021207231B3 (en) | 2021-07-08 | 2022-12-08 | Siemens Aktiengesellschaft | Yoke for a magnetic release as well as magnetic release and protective switching device with a magnetic release |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH343028A (en) * | 1955-04-13 | 1959-12-15 | Asea Ab | Toggle relay |
US3001049A (en) * | 1959-11-30 | 1961-09-19 | Leach Corp | Magnetic latch |
FR79124E (en) * | 1960-10-18 | 1962-10-26 | Polarized relay especially intended for differential circuit breakers | |
CH397084A (en) * | 1962-10-08 | 1965-08-15 | Landis & Gyr Ag | Electromagnetic relay |
DE2245151A1 (en) * | 1972-09-14 | 1974-03-21 | Felten & Guilleaume Schaltanl | ADJUSTABLE RELAY |
-
1979
- 1979-12-21 DE DE19792951899 patent/DE2951899A1/en not_active Withdrawn
-
1980
- 1980-11-26 ZA ZA19807362D patent/ZA8007362D/en unknown
- 1980-12-02 EP EP80107521A patent/EP0031474A3/en not_active Withdrawn
- 1980-12-12 DK DK530380A patent/DK530380A/en unknown
- 1980-12-18 ES ES497894A patent/ES8200509A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ZA8007362D (en) | 1981-10-28 |
EP0031474A3 (en) | 1982-03-17 |
ES497894A0 (en) | 1981-11-01 |
EP0031474A2 (en) | 1981-07-08 |
DE2951899A1 (en) | 1981-07-02 |
DK530380A (en) | 1981-06-22 |
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