GB217772A - Improvements in and relating to alternating current electricity meters - Google Patents
Improvements in and relating to alternating current electricity metersInfo
- Publication number
- GB217772A GB217772A GB1694523A GB1694523A GB217772A GB 217772 A GB217772 A GB 217772A GB 1694523 A GB1694523 A GB 1694523A GB 1694523 A GB1694523 A GB 1694523A GB 217772 A GB217772 A GB 217772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- series
- shaded
- magnet
- electromagnet
- disc
- 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
- G01R11/36—Induction meters, e.g. Ferraris meters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
217,772. Ferranti, S. Z. de, and Ferranti, Ltd. June 29, 1923. Induction motor meters. -The braking effect of the series field is compensated by a shaded-pole element producing an auxiliary driving - torque varying with the load current. This may be produced by a separate shaded-pole electromagnet a with a series winding e and having one or both pole-pieces b, c bifurcated and furnished with a pair of copper rings f on one half of each polepiece. This magnet may co-operate with the main disc or other rotor d or with an additional disc &c. In a modification in which a threelimbed shunt electromagnet and a U-shaped series electromagnet disposed on opposite sides of a disc comprise the driving system, both polepieces of the series magnet are shaded. In another modification in which a three-limbed series electromagnet . and a U-shaped shunt magnet are disposed on opposite sides of the disc, either the centre limb or all three limbs of the series magnet are shaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1694523A GB217772A (en) | 1923-06-29 | 1923-06-29 | Improvements in and relating to alternating current electricity meters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1694523A GB217772A (en) | 1923-06-29 | 1923-06-29 | Improvements in and relating to alternating current electricity meters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB217772A true GB217772A (en) | 1924-06-26 |
Family
ID=10086488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1694523A Expired GB217772A (en) | 1923-06-29 | 1923-06-29 | Improvements in and relating to alternating current electricity meters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB217772A (en) |
-
1923
- 1923-06-29 GB GB1694523A patent/GB217772A/en not_active Expired
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