Method of detecting insulation faults and spark tester for implementing the method
US5302904A · kind A · utility
13Cited by
6References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1992 |
| Grant date | Apr 12, 1994 |
| Priority date | — |
| Expiry date | Sep 30, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/59
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A testing voltage of 800 to 5000 volts is applied to a measuring electrode constructed of carbon fiber brushes. This testing voltage is regulated to the desired value by means of a control circuit. Sparkover pulses travel through a filter to an output, with the response level of the testing voltage being regulated accordingly. Thus the test is reliable without highly electrically or mechanically stressing the test object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.