GB400985A - Improvements in electrical measuring or relay apparatus, particularly for high potential circuits - Google Patents
Improvements in electrical measuring or relay apparatus, particularly for high potential circuitsInfo
- Publication number
- GB400985A GB400985A GB1288532A GB1288532A GB400985A GB 400985 A GB400985 A GB 400985A GB 1288532 A GB1288532 A GB 1288532A GB 1288532 A GB1288532 A GB 1288532A GB 400985 A GB400985 A GB 400985A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- high potential
- relay apparatus
- electrical measuring
- earthed
- 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
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/32—Circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
- H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
- H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Machine Translation (AREA)
Abstract
400,985. Protective cut-out arrangements. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, WELLINGS, J. G., Ricky, London Road, Dunchurch, and MAYO, C. G., 17, Alexandra Road, both in Rugby. May 4, 1932, No. 12885. Addition to 372,404. [Class 38 (v).] A relay energized from high potential circuits as described in the parent Specification is so connected that the magnetizing current of the potential transformer does not affect its action. In one arrangement, as shown in the Figure, the double primary winding 2, 3 is connected to the relay windings 11, 12, the common point of which is earthed. In another arrangement, the relay is supplied through a current transformer, the primary of which is connected to the windings 2, 3 and has its mid-point earthed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1288532A GB400985A (en) | 1932-05-04 | 1932-05-04 | Improvements in electrical measuring or relay apparatus, particularly for high potential circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1288532A GB400985A (en) | 1932-05-04 | 1932-05-04 | Improvements in electrical measuring or relay apparatus, particularly for high potential circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB400985A true GB400985A (en) | 1933-11-06 |
Family
ID=10012905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1288532A Expired GB400985A (en) | 1932-05-04 | 1932-05-04 | Improvements in electrical measuring or relay apparatus, particularly for high potential circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB400985A (en) |
-
1932
- 1932-05-04 GB GB1288532A patent/GB400985A/en not_active Expired
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