Harmonic cancellation system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 18, 1995
Issued Date -
N/A
app pub date -
Aug 5, 1994
filing date -
Nov 15, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A harmonic current filtering transformer includes a three-phase input winding and at least two wye-connected three-phase output windings. Windings for each of the phases includes an in-phase coil connected between a common neutral and vector coils for each of the other two phases, the output windings thereby being phase shifted relative to each other by an amount which causes harmonic currents generated by a non-linear load to magnetically cancel in the transformer core. The harmonic current filtering transformer may be used as part of a harmonic cancelling power system which includes multiple linear and nonlinear loads, and protective devices, switches, filters and other components on both the input and output sides of the transformer as in a conventional power system since the harmonic cancelling transformer does not require additional secondary windings or other electrical components previously thought necessary to achieve harmonic cancellation.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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