Circuit interrupter with ground fault trip control
US3959695A · kind A · utility
9Cited by
5References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1975 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Apr 29, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H1/063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit interrupter having an associated control system which senses overload current or ground fault current and causes an appropriate tripping of the circuit interrupter. Tripping energy for causing the circuit interrupter to open under a normal fault condition is derived from the fault current itself. In addition, tripping energy for causing the circuit interrupter to open due to a ground fault condition is derived from the ground fault current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.