GB245536A - Improvements relating to direct-current ampere-hour meters - Google Patents
Improvements relating to direct-current ampere-hour metersInfo
- Publication number
- GB245536A GB245536A GB2480424A GB2480424A GB245536A GB 245536 A GB245536 A GB 245536A GB 2480424 A GB2480424 A GB 2480424A GB 2480424 A GB2480424 A GB 2480424A GB 245536 A GB245536 A GB 245536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- direct
- brake magnet
- improvements relating
- hour meters
- fringes
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/30—Dynamo-electric motor meters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Braking Arrangements (AREA)
Abstract
245,536. Wall, G., and Metropolitan- Vickers Electrical Co., Ltd. Oct, 18, 1924. Electric and mag. netic.-The poles of a brake magnet for an electrical instrument are equipped with polepiece structures composed wholly or in part of a material of which the magnetic permeability changes with a change of temperature, the configuration and distribution of the magnetic flux in the working gap being thereby caused to vary with change of temperature. Fig. 10 shows a mercury motor meter, in which the brake magnet 67 is equipped with pole fringes 27 of material having a negative temperature coefficient of permeability. Another method of applying the pole fringes 27 to a brake magnet 67 is shown in Fig. 11.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2480424A GB245536A (en) | 1924-10-18 | 1924-10-18 | Improvements relating to direct-current ampere-hour meters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2480424A GB245536A (en) | 1924-10-18 | 1924-10-18 | Improvements relating to direct-current ampere-hour meters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB245536A true GB245536A (en) | 1926-01-14 |
Family
ID=10217477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2480424A Expired GB245536A (en) | 1924-10-18 | 1924-10-18 | Improvements relating to direct-current ampere-hour meters |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB245536A (en) |
-
1924
- 1924-10-18 GB GB2480424A patent/GB245536A/en not_active Expired
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