GB355692A - Improvements relating to electric potential indicating devices - Google Patents
Improvements relating to electric potential indicating devicesInfo
- Publication number
- GB355692A GB355692A GB6072/30A GB607230A GB355692A GB 355692 A GB355692 A GB 355692A GB 6072/30 A GB6072/30 A GB 6072/30A GB 607230 A GB607230 A GB 607230A GB 355692 A GB355692 A GB 355692A
- Authority
- GB
- United Kingdom
- Prior art keywords
- london
- class
- electric potential
- improvements relating
- indicating devices
- 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
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
355,692. Current detectors; indicating faults. EDISON SWAN ELECTRIC CO., Ltd., 123, Queen Victoria Street, London, GREETHAM, E., 27, Louis Street, Hull, and SHOTTER, G. F., 14, The Ridgeway, Friern Barnet, London. Feb. 24, 1930, Nos. 6072 and 38738. [Class 37.] In apparatus for indicating whether high-tension A.C. conductors are alive, a neon tube 3 in series with one or more sparkgaps 9, 10 having needle-like electrodes of very small capacity, is mounted on a holder fitted with a contact-clip 11 and a metal cap 12 forming a capacitative coupling. Instead of the neon tube some other form of detector, such as a coil associated with a sounding diaphragm, may be used. Specification 206,216, [Class 37, Electricity, Measuring &c.], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6072/30A GB355692A (en) | 1930-02-24 | 1930-02-24 | Improvements relating to electric potential indicating devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6072/30A GB355692A (en) | 1930-02-24 | 1930-02-24 | Improvements relating to electric potential indicating devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB355692A true GB355692A (en) | 1931-08-24 |
Family
ID=9807878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6072/30A Expired GB355692A (en) | 1930-02-24 | 1930-02-24 | Improvements relating to electric potential indicating devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB355692A (en) |
-
1930
- 1930-02-24 GB GB6072/30A patent/GB355692A/en not_active Expired
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