Method and apparatus for sensing a ground fault in a motor control system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 31, 1995
Issued Date -
N/A
app pub date -
Jan 18, 1994
filing date -
Jan 3, 1990
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A motor control unit for protecting a motor against ground fault currents. The unit monitors the currents in each phase of the motor to provide values representative of each phase current. The unit also includes a contactor for opening and closing each phase, wherein the unit controls the contactor based upon the values representative of the phase currents. The contactor is opened when a ground fault situation exists at the motor.
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