skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
 [1]
  1. (Bethel Park, PA)
Issue Date:
Research Org.:
WESTINGHOUSE ELECTRIC CORP
Sponsoring Org.:
USDOE
OSTI Identifier:
872294
Patent Number(s):
5905619
Assignee:
United States of America as represented by United States (Washington, DC) PNRO
DOE Contract Number:  
AC11-93PN38195
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fault; detection; ungrounded; high-resistance-grounded; power; distribution; systems; provided; retrofitted; outside; electrical; switchboard; circuits; limited; space; constraints; differential; current; relay; senses; flowing; secondary; windings; located; transformer; coupled; supply; total; induced; load; experienced; travels; operating; coil; upstream; circuit; breaker; remove; secondary windings; secondary winding; current induced; current transformer; power supply; circuit breaker; current flow; current flowing; fault detection; power distribution; electrical switch; space constraints; total current; differential current; distribution systems; limited space; /361/

Citation Formats

Jha, Kamal N. Arc fault detection system. United States: N. p., 1999. Web.
Jha, Kamal N. Arc fault detection system. United States.
Jha, Kamal N. Fri . "Arc fault detection system". United States. https://www.osti.gov/servlets/purl/872294.
@article{osti_872294,
title = {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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {1}
}

Patent:

Save / Share: