GB353228A - Improvements in and relating to methods of and means for limiting short-circuit currents - Google Patents
Improvements in and relating to methods of and means for limiting short-circuit currentsInfo
- Publication number
- GB353228A GB353228A GB20635/30A GB2063530A GB353228A GB 353228 A GB353228 A GB 353228A GB 20635/30 A GB20635/30 A GB 20635/30A GB 2063530 A GB2063530 A GB 2063530A GB 353228 A GB353228 A GB 353228A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contacts
- circuit
- july
- relating
- methods
- 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
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
353,228. Electromagnetic switches. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. July 8, 1930, No. 20635. Convention date, July 15, 1929. [Class 38 (v).] Contacts.-A circuit breaker for limiting shortcircuit currents comprises two axially - movable cooperating contacts in the form of oppositely - wound coaxial helices f, g normally in abutting contact under the action of adjustable helical springs c, d surrounding them. With heavy short-circuit currents the contacts repel one another, breaking the circuit and introducing into the circuit the iron resistance n which serves as a current limiter. When separated, the contacts are held apart by wedge-friction or by means of a pawl which hold the switch open until it is released by hand.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE353228X | 1929-07-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB353228A true GB353228A (en) | 1931-07-23 |
Family
ID=6280570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20635/30A Expired GB353228A (en) | 1929-07-15 | 1930-07-08 | Improvements in and relating to methods of and means for limiting short-circuit currents |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR698808A (en) |
GB (1) | GB353228A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009035299A1 (en) * | 2009-07-30 | 2011-02-03 | Siemens Aktiengesellschaft | Arrangement for interrupting current flow in e.g. limiter, has contact pieces with coils wound such that current is guided through coils during flow of current to move pieces from one position into another position based on force |
EP3889986A1 (en) * | 2020-03-30 | 2021-10-06 | Siemens Aktiengesellschaft | Electromechanical compact protective switching device |
-
1930
- 1930-07-08 GB GB20635/30A patent/GB353228A/en not_active Expired
- 1930-07-10 FR FR698808D patent/FR698808A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009035299A1 (en) * | 2009-07-30 | 2011-02-03 | Siemens Aktiengesellschaft | Arrangement for interrupting current flow in e.g. limiter, has contact pieces with coils wound such that current is guided through coils during flow of current to move pieces from one position into another position based on force |
DE102009035299B4 (en) * | 2009-07-30 | 2013-02-14 | Siemens Aktiengesellschaft | Contact system and switching device |
EP3889986A1 (en) * | 2020-03-30 | 2021-10-06 | Siemens Aktiengesellschaft | Electromechanical compact protective switching device |
Also Published As
Publication number | Publication date |
---|---|
FR698808A (en) | 1931-02-05 |
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