Arc fault circuit protection device with asymmetrical transformer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 25, 2003
Issued Date -
N/A
app pub date -
Nov 16, 2001
filing date -
Jun 2, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A protection device for an electrical circuit includes an asymmetrical transformer for producing a signal in response to an arc fault in the circuit; and an arc fault detector connected to the transformer which receives the signal. The asymmetrical transformer preferably includes a primary winding of the asymmetrical transformer being formed by a hot conductor and a neutral conductor of the electrical circuit. An asymmetry of a symmetrical secondary winding is produced by placing an asymmetrical tap into the symmetrical secondary winding of the transformer. The tap receives an asymmetrical part of common mode core flux to produce the signal, while the symmetrical secondary winding receives full common mode flux but in equal and opposite directions so as not to produce a signal.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully