High impedance fault detection
US6453248B1 · kind B1 · utility
27Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1998 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Jul 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved high impedance fault (HIF) detection system comprises an analyzer located at a circuit breaker or substation with feeders, wherein the analyzer analyzes current and/or voltage waveforms to detect a HIF on the feeder or on one of a plurality of laterals coupled to the feeder; a plurality of remote outage detectors located respectively at corresponding customer sites, each remote outage detector including a mechanism to detect a loss of potential or power at the corresponding site; and a computer in communication with the analyzer and the remote outage detectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.