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Title: An arc fault detection system

Abstract

An arc fault detection system for use on ungrounded or high-resistance-grounded power distribution systems is provided which can be retrofitted outside electrical switchboard circuits having limited space constraints. The system includes a differential current relay that senses a current differential between current flowing from secondary windings located in a current transformer coupled to a power supply side of a switchboard, and a total current induced in secondary windings coupled to a load side of the switchboard. When such a current differential is experienced, a current travels through a operating coil of the differential current relay, which in turn, opens an upstream circuit breaker located between the switchboard and a power supply to remove the supply of power to the switchboard.

Inventors:
Publication Date:
Research Org.:
Bettis Atomic Power Lab., West Mifflin, PA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
755680
Patent Number(s):
PATENTS-US-A8951026
Application Number:
8-951,026; TRN: AH200021%%214
Assignee:
DOEGC; EDB-00:057699
DOE Contract Number:  
AC11-93PN38195
Resource Type:
Patent Application
Resource Relation:
Patent File Date: 1997 Oct 15; Other Information: PBD: 1 Dec 1997
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; POWER DISTRIBUTION SYSTEMS; ELECTRICAL FAULTS; DETECTION; RELAYS; ELECTRIC CURRENTS

Citation Formats

Jha, Kamal N. An arc fault detection system. United States: N. p., 1997. Web.
Jha, Kamal N. An arc fault detection system. United States.
Jha, Kamal N. 1997. "An arc fault detection system". United States. https://www.osti.gov/servlets/purl/755680.
@article{osti_755680,
title = {An arc fault detection system},
author = {Jha, Kamal N},
abstractNote = {An arc fault detection system for use on ungrounded or high-resistance-grounded power distribution systems is provided which can be retrofitted outside electrical switchboard circuits having limited space constraints. The system includes a differential current relay that senses a current differential between current flowing from secondary windings located in a current transformer coupled to a power supply side of a switchboard, and a total current induced in secondary windings coupled to a load side of the switchboard. When such a current differential is experienced, a current travels through a operating coil of the differential current relay, which in turn, opens an upstream circuit breaker located between the switchboard and a power supply to remove the supply of power to the switchboard.},
doi = {},
url = {https://www.osti.gov/biblio/755680}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Dec 01 00:00:00 EST 1997},
month = {Mon Dec 01 00:00:00 EST 1997}
}