GB260551A - Device for improving the temperature error in electricity meters - Google Patents
Device for improving the temperature error in electricity metersInfo
- Publication number
- GB260551A GB260551A GB18?64/26A GB1876426A GB260551A GB 260551 A GB260551 A GB 260551A GB 1876426 A GB1876426 A GB 1876426A GB 260551 A GB260551 A GB 260551A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- per cent
- aluminium
- brake
- copper
- 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
- G01R11/02—Constructional details
- G01R11/17—Compensating for errors; Adjusting or regulating means therefor
- G01R11/18—Compensating for variations in ambient conditions
- G01R11/185—Temperature compensation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Braking Arrangements (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
260,551. Landis et Gyr Soc. Anon. Oct. 30, 1925, [Convention date]. Electric and magnetic.-In order to decrease the temperature error of an electricity meter, at least one member on which the braking action is exerted consists of aluminium alloyed with copper, silicon, and iron. The invention is shown applied to an induction motor meter in which the magnetic system 1 drives an aluminium or copper disc 2. On the shaft 3 is also mounted a disc, 4 acted on by the brake magnet 5. This disc consists of an aluminium alloy containing for example 96.25 per cent of aluminium, 2.82, per cent of copper. 0.70 per cent of silicon, and 0.23 per cent of iron. It is stated that the resistance of such a disc increases by 0.00284 per cent per degree rise in temperature as compared with 0.0039 per cent for an aluminium disc. In polyphase meters with a number of driving systems there mav be or more such brake discs or drums acted on by one or more brake magnets. In direct-current meters with drum armatures, the usual brake disc is replaced by one formed of the above-described alloy.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH260551X | 1925-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB260551A true GB260551A (en) | 1927-07-14 |
Family
ID=4473551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18?64/26A Expired GB260551A (en) | 1925-10-30 | 1926-07-27 | Device for improving the temperature error in electricity meters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB260551A (en) |
-
1926
- 1926-07-27 GB GB18?64/26A patent/GB260551A/en not_active Expired
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