Re: questions on Power Factor
Here are some sample questions from our equivalent exam in Canada, the Interprovincial.
1. Calculate the power factor of a 10 HP, 460 volt, 14 amp, three phase motor at full load, if it's efficiency is 86%. ___________%.
2. Determine the full load current drawn by a 2 HP, 230 volt, single phase motor, operating with an efficiency of 80%, and a power factor of 67%. __________amps.
3. A 480 volt, three phase feeder is supplying a load of 38.4 kilowatts at 80% power factor. Calculate the reactive power. _________kilovars.
Ed
[ June 08, 2003, 01:27 PM: Message edited by: Ed MacLaren ]