GB264477A - Improvements relating to overload relay devices for alternating current distributionsystems - Google Patents
Improvements relating to overload relay devices for alternating current distributionsystemsInfo
- Publication number
- GB264477A GB264477A GB32602/26A GB3260226A GB264477A GB 264477 A GB264477 A GB 264477A GB 32602/26 A GB32602/26 A GB 32602/26A GB 3260226 A GB3260226 A GB 3260226A GB 264477 A GB264477 A GB 264477A
- Authority
- GB
- United Kingdom
- Prior art keywords
- secondary winding
- distributionsystems
- core
- alternating current
- series
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Regulation Of General Use Transformers (AREA)
- Electromagnets (AREA)
Abstract
264,477. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Koppitz, C. G.). Jan. 13, 1926, [Convention date]. Transformers.-In high-potential A.C. distribution systems a cheap form of series transformer is provided for the operation of the air-break switches on overload. The transformer comprises a primary winding 10, Fig. 4, in series with the protected conductor and wound upon an openended core 12 remotely disposed in relation to a secondary winding 11 on another open ended core 13 so that the magnetic linkage between the two is small. The two cores are arranged at opposite ends of a long insulator 20, Fig. 1, so as to be in vertical alignment and at right angles to the power conductor. The secondary winding is connected with a sensitive relay having a magnet structure 14 of low retentivity made, for example, of 4 per cent silicon steel and having a spring-controlled thin plate armature 16 which is weighted at 17 to provide the necessary inertia to make the armature relatively unresponsive to vibrations.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81115A US1714675A (en) | 1926-01-13 | 1926-01-13 | Overload-actuated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB264477A true GB264477A (en) | 1927-10-06 |
Family
ID=22162185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32602/26A Expired GB264477A (en) | 1926-01-13 | 1926-12-23 | Improvements relating to overload relay devices for alternating current distributionsystems |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1714675A (en) |
| GB (1) | GB264477A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3114078A (en) * | 1956-06-05 | 1963-12-10 | Bbc Brown Boveri & Cie | Amplifier apparatus for measuring currents and/or voltages on high voltage transmission lines |
-
1926
- 1926-01-13 US US81115A patent/US1714675A/en not_active Expired - Lifetime
- 1926-12-23 GB GB32602/26A patent/GB264477A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1714675A (en) | 1929-05-28 |
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