H - Electricity – 02 – M
Patent
H - Electricity
02
M
321/24
H02M 7/155 (2006.01) H02H 7/122 (2006.01) H02J 9/06 (2006.01) H02M 7/5387 (2006.01)
Patent
CA 1173499
SE-103 CURRENT OVERLOAD PROTECTION FOR INVERTER OF UNINTERRUPTIBLE POWER SUPPLY SYSTEM ABSTRACT OF THE DISCLOSURE Current overload protection is provided for an inverter of an uninterruptible power supply system; a shutdown circuit responds when a current overload is present, and a plurality of at least three comparators having different input threshold and different time delays at their respective outputs operate such that when an extreme overload occurs, the inverter will be shut down immediately, whereas it will be shut down after predetermined longer periods with correspondingly lesser amounts of current overload present.
398995
Borden Ladner Gervais Llp
General Signal Corporation
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