Drive failure protection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 18, 2017
Grant Date -
May 15, 2014
app pub date -
Jan 20, 2014
filing date -
Jan 28, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present techniques include methods and systems for detecting a failure in a capacitor bank of an electrical drive system. Embodiments include using discharge resistors to discharge capacitors in the capacitor bank, forming a neutral node of the capacitor bank. In different capacitor configurations, the neutral node is measured, and the voltage is analyzed to determine whether a capacitor bank unbalance has occurred. In some embodiments, the node is a neutral-to-neutral node between the discharged side of the discharge resistors and a neutral side of the capacitor bank, or between the discharged side of the discharge resistors and a discharged side of a second set of discharge resistors. In some embodiments, the node is a neutral-to-ground node between the discharged side of the discharge resistors and a ground potential.
First Claim
Family
International Classification(s)
- H02J:CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR D....
- H02M:APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEE....
- H02P:CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATO....
- G01R:MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC V....
- H01G:CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWI....
- H02H:EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- [Classification Symbol]
- [Patents Count]
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