Answer Posted / 2642
power factor= active power/ apparent power
or
power factor=resistance/impedance
| Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
how works inductive &capacitive sensors?
i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com
Single line diagrams for star to delta and DOL starters.
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?
Where burned of electricity,when,who, & why.
Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
how to calculate percentage impedence at 75 deg C at normal tap
What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines
What is the Minimum winding resistance of motors ( small & big)? referance range
what is the relation between size of the anteena and wavelenghth of radiated wave
hi friends if you have any 400KV Substation Erection and installations Drgs please send to me.My email id:kandi.suresh441@gmail.com
My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?
How to test IR testing & magnetic balance test
WHAT IS MEANT BY INSULATION CLEARANCE IN VACCUM?
