One-terminal fault location system that corrects for fault resistance effects
US5773980A · kind A · utility
23Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1997 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Jan 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A one-terminal process for locating a fault associated with a multi-phase electric power transmission system is disclosed. The process is based on the principle that the impedance in a fault can be determined by correcting errors due to the interaction of fault resistance and load current. The fault may be a phase-to-ground fault or a multiple-phase fault.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.