GB732054A - Improvements relating to the protection of electric current transformers - Google Patents
Improvements relating to the protection of electric current transformersInfo
- Publication number
- GB732054A GB732054A GB1165852A GB1165852A GB732054A GB 732054 A GB732054 A GB 732054A GB 1165852 A GB1165852 A GB 1165852A GB 1165852 A GB1165852 A GB 1165852A GB 732054 A GB732054 A GB 732054A
- Authority
- GB
- United Kingdom
- Prior art keywords
- winding
- relay
- protective
- impedance
- auxiliary circuit
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
732,054. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. May 7, 1953 [May 8, 1952], No. 11658/52. Class 38 (5). A protective arrangement for a liquid - immersed current transformer has a protective relay 17 with its operating winding connected in an auxiliary circuit to which a voltage is applied, at 16, the auxiliary circuit including a high-impedance winding 13, the impedance of which is adapted to be changed by the operation of a gas-actuated relay 9 so that the resulting current change in the auxiliary circuit effects the operation of the protective relay 17. The high-impedance winding 13 is carried on a core embracing either the primary winding 4 of the transformer or, as shown, an additional primary winding 14 lightly insulated from but connected to the winding 4, and the gasactuated relay 9 short-circuits the winding 4 or 14 as the case may be. Specifications 470,966, 673,800, [Group XXXV], and 686,943 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1165852A GB732054A (en) | 1952-05-08 | 1952-05-08 | Improvements relating to the protection of electric current transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1165852A GB732054A (en) | 1952-05-08 | 1952-05-08 | Improvements relating to the protection of electric current transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB732054A true GB732054A (en) | 1955-06-15 |
Family
ID=9990294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1165852A Expired GB732054A (en) | 1952-05-08 | 1952-05-08 | Improvements relating to the protection of electric current transformers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB732054A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015062633A1 (en) * | 2013-10-29 | 2015-05-07 | Siemens Ag Österreich | Transformer or inductor comprising a protective device |
-
1952
- 1952-05-08 GB GB1165852A patent/GB732054A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015062633A1 (en) * | 2013-10-29 | 2015-05-07 | Siemens Ag Österreich | Transformer or inductor comprising a protective device |
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