Field sensing arc detection
US5185685A · kind A · utility
77Cited by
29References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Mar 28, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/0015
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An arc detection method and apparatus is provided for an electric circuit having an electrified conductor (46) connecting a voltage source (26) to a load (30). The system senses the electromagnetic field established about the conductor by the occurrence of an electrical arc in the electric circuit, and generates a field responsive signal. Arc discrimination circuitry responding to the field responsive signal and generates an arc indicative signal in response to a given characteristic of the field responsive signal. The system includes an E field sensor (66) and a B field sensor (68).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.