GB437223A - Improvements in and relating to apparatus for detecting faults in transformers - Google Patents
Improvements in and relating to apparatus for detecting faults in transformersInfo
- Publication number
- GB437223A GB437223A GB31236/34A GB3123634A GB437223A GB 437223 A GB437223 A GB 437223A GB 31236/34 A GB31236/34 A GB 31236/34A GB 3123634 A GB3123634 A GB 3123634A GB 437223 A GB437223 A GB 437223A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coils
- transformers
- class
- series
- length
- 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
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
437,223. Transformers. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 31, 1934, No. 31236. Convention date, Nov. 1, 1933. [Class 38 (ii)] Faults in transformer insulation are detected by providing coils 14, 15 located between the magnetic casing and windings, the detector 16 responding to unbalance in leakage flux. One of the coils 14, 15 may be tapped in order to produce equality of induced voltage in both coils. In modifications, a single coil 14 extends for the length of the main windings, or a number of series-connected coils may be disposed throughout the length of the main windings, the induced voltages being opposed in all of the above arrangements. In a further modification, a variable resistor is connected in series with the coils 14, 15, the induced voltages being additive and the instrument 16 connected to the resistor tapping at an equipotential point. Reference has been directed by the Comptroller to Specifications 296,446, 297,473, and 336,147, [all in Class 38 (ii)].
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US437223XA | 1933-11-01 | 1933-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB437223A true GB437223A (en) | 1935-10-25 |
Family
ID=21928557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31236/34A Expired GB437223A (en) | 1933-11-01 | 1934-10-31 | Improvements in and relating to apparatus for detecting faults in transformers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB437223A (en) |
-
1934
- 1934-10-31 GB GB31236/34A patent/GB437223A/en not_active Expired
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