Ground fault protection system for industrial power circuits
US4156884A · kind A · utility
14Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1977 |
| Grant date | May 29, 1979 |
| Priority date | — |
| Expiry date | Nov 7, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/162
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ground fault circuit interrupting (GFCI) device of the type utilized in low voltage, residential type circuits for personnel protection against ground faults is connected in circuit with a high voltage, high current source so as to trip in response to ground fault current returning to the source via a conductor path solidly connecting the source to ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.