Answer Posted / shailesh n. narayane
KW=VIcosine of p.f.angle=Active power
KVA=VI=Apparent power
KVAR=VI sine of p.f. nagle
VIcosine of p.f.angle
So p.f.= _______________________
Apparent power
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.
how invertor convert the dc into ac give brif detail
1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?
What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?
What is power in wattage of 8.5 TR AC
how to calculate the size of the HT cable
for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations
What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.
what is two point starter?
What do you mean by a current transformer?
What is the formula to calculate a three phase alternator
how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?
We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?
What is the drawback of class b amplifier? How is this minimized?
