GB439996A - Improvements in electric power factor measuring instruments - Google Patents
Improvements in electric power factor measuring instrumentsInfo
- Publication number
- GB439996A GB439996A GB2628934A GB2628934A GB439996A GB 439996 A GB439996 A GB 439996A GB 2628934 A GB2628934 A GB 2628934A GB 2628934 A GB2628934 A GB 2628934A GB 439996 A GB439996 A GB 439996A
- Authority
- GB
- United Kingdom
- Prior art keywords
- power
- factor
- conductor
- deflection
- salford
- 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
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
439,996. Power-factor, current, and pressure measurements. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, TURNER, H. C., and SHERWIN, A., c/o Salford Electrical Instruments, Ltd., Silk Street, Salford, Lancashire. Sept. 13, 1934, No. 26289. [Class 37] Power - factor meters comprise two core parts 1, 2 hinged together and providing a small airgap at 8, a moving iron member 4 being located adjacent the hinge and one or more voltage coils 6, 7 being provided on the core. In order to measure power-factor, the core parts are opened to embrace a conductor 10 a predetermined deflection of the pointer 5 being obtained with a set air-gap. The instrument is then removed from the conductor and the voltage coils connected, adjustment of the resistance' 9 being made until the same deflection is obtained. The conductor 10 is again inserted with the voltage connection made, the resultant deflection indicating the power factor. Scales of power-factors, amperes and volts may be provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2628934A GB439996A (en) | 1934-09-13 | 1934-09-13 | Improvements in electric power factor measuring instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2628934A GB439996A (en) | 1934-09-13 | 1934-09-13 | Improvements in electric power factor measuring instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB439996A true GB439996A (en) | 1935-12-18 |
Family
ID=10241292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2628934A Expired GB439996A (en) | 1934-09-13 | 1934-09-13 | Improvements in electric power factor measuring instruments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB439996A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5495169A (en) * | 1984-10-12 | 1996-02-27 | Smith; Dayle | Clamp-on current sensor |
-
1934
- 1934-09-13 GB GB2628934A patent/GB439996A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5495169A (en) * | 1984-10-12 | 1996-02-27 | Smith; Dayle | Clamp-on current sensor |
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