GB269509A - Improvements in or relating to protective systems for electric transformers - Google Patents
Improvements in or relating to protective systems for electric transformersInfo
- Publication number
- GB269509A GB269509A GB8180/27A GB818027A GB269509A GB 269509 A GB269509 A GB 269509A GB 8180/27 A GB8180/27 A GB 8180/27A GB 818027 A GB818027 A GB 818027A GB 269509 A GB269509 A GB 269509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformers
- tap
- relating
- contactors
- taps
- 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
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
- H02H7/055—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers for tapped transformers or tap-changing means thereof
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
Abstract
269,509. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Farley, W. R., and Rodgers, W. H.). April 15, 1926. [Convention date]. Regulating transformers.-Transformers with tap-changing devices are protected by cutting them out of circuit when a condition of unbalance due to internal fault in the transformers arises and selective visual and audible indications are given when the tap-changing process does not proceed correctly. The invention is shown applied to a tap-changing arrangement in which a balance coil 31 is connected through contactors 23, 25, 27, 24 and 26 to the taps on the secondary and its midpoint, is connected to one of the outgoing leads 22. Thus, by sequential operation of the contactors, in effect a sub-division of the taps on the secondary can be obtained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US269509XA | 1926-04-15 | 1926-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB269509A true GB269509A (en) | 1927-09-01 |
Family
ID=21834757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8180/27A Expired GB269509A (en) | 1926-04-15 | 1927-03-24 | Improvements in or relating to protective systems for electric transformers |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE529641C (en) |
| GB (1) | GB269509A (en) |
-
1927
- 1927-03-04 DE DES78646D patent/DE529641C/en not_active Expired
- 1927-03-24 GB GB8180/27A patent/GB269509A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE529641C (en) | 1931-07-16 |
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