GB1364647A - Electrical current overload trip devices - Google Patents
Electrical current overload trip devicesInfo
- Publication number
- GB1364647A GB1364647A GB5251271A GB5251271A GB1364647A GB 1364647 A GB1364647 A GB 1364647A GB 5251271 A GB5251271 A GB 5251271A GB 5251271 A GB5251271 A GB 5251271A GB 1364647 A GB1364647 A GB 1364647A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- yoke
- armatures
- nov
- overload trip
- 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
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
- H01H71/2436—Electromagnetic mechanisms with a holding and a releasing magnet, the holding force being limited due to saturation of the holding magnet
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Electromagnets (AREA)
Abstract
1364647 Automatic circuit-breakers SIEMENS AG 11 Nov 1971 [13 Nov 1970] 52512/71 Heading H1N An overload trip device for a circuit-breaker comprises a yoke 2 which is magnetized by the current in a conductor, e.g. a bus-bar 1, a main trip armature 6 carried by a pivoted arm 7, an auxiliary armature 13 adjacent an air gap 12 in the yoke 2 and a pin 15 extending between the armatures. Normally the armature 13 is attracted, but should the current become excessive then the armature 6 is strongly attracted towards the yoke and moves the armature 13 away from the yoke, so that the restraining force provided by the armature 13 rapidly diminishes as the force acting on the armature 6 rapidly increases, so that a high speed tripping action is obtained. Light springs 8, 14 restore the armatures to their initial positions.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702056867 DE2056867C3 (en) | 1970-11-13 | 1970-11-13 | Overcurrent release device for circuit breakers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1364647A true GB1364647A (en) | 1974-08-29 |
Family
ID=5788546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5251271A Expired GB1364647A (en) | 1970-11-13 | 1971-11-11 | Electrical current overload trip devices |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5316512B1 (en) |
DE (1) | DE2056867C3 (en) |
FR (1) | FR2113852B1 (en) |
GB (1) | GB1364647A (en) |
IT (1) | IT940524B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111886668A (en) * | 2018-03-23 | 2020-11-03 | 三菱电机株式会社 | Trip device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5341211U (en) * | 1976-09-16 | 1978-04-10 |
-
1970
- 1970-11-13 DE DE19702056867 patent/DE2056867C3/en not_active Expired
-
1971
- 1971-10-25 FR FR7138294A patent/FR2113852B1/fr not_active Expired
- 1971-11-11 GB GB5251271A patent/GB1364647A/en not_active Expired
- 1971-11-11 IT IT3095571A patent/IT940524B/en active
- 1971-11-12 JP JP9053171A patent/JPS5316512B1/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111886668A (en) * | 2018-03-23 | 2020-11-03 | 三菱电机株式会社 | Trip device |
Also Published As
Publication number | Publication date |
---|---|
FR2113852B1 (en) | 1976-07-23 |
DE2056867C3 (en) | 1975-01-09 |
DE2056867B2 (en) | 1973-03-15 |
DE2056867A1 (en) | 1972-05-25 |
IT940524B (en) | 1973-02-20 |
JPS5316512B1 (en) | 1978-06-01 |
FR2113852A1 (en) | 1972-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |