• #### Power Consumed

If v=220V, I=25A, power factor=0.8, frequency=400Hz. If the motor runs for 3 hours, What is the power consumed?

#### bittu123

• Nov 10th, 2011

Calculating power, frequency and time is not required. P=V*I*Cos0 =220*25*0.8 =4400 watts answer But if you are looking for "How much energy motor consumed?" then you need time Energy consumed ...

#### dineshkumarsah.mj

• Jun 15th, 2011

Here Freq was given was wrong P V*I*CosAA is power factor V is VoltageI is Current P 220*25*0.8P 4400wattsPower P is 4.4Kwatts for one hour.For 3 hrs 4.4KW*3 = 13.2KW

• #### For a 100kw generator, only 50kw of load is connected. Will the generator generate only 50kw or 100kw? If it generate 100kw what happens to rest of the 50kw. What happens if we connect more than 100kw of load?

• Dec 23rd, 2006

100 kw is the full load rating of the generator..... ..that means it can supply 100 kw without exceeding in specified temperature limits .that doesnt mean that it wont be able to supply a load more than 100 kw,it can but not for a longer period of time.after sometime the generator will burn out.if a load of 50 kw is connected to generator the generator will generate only 50 kw& not more than that.the generator will generate power only according to the requirement.

#### Dharmender

• Feb 7th, 2018

#### Mayilsamy Kasipandi

• Jul 11th, 2017

The Generator produce the power is exactly what we withdraw as load. 100 kw genset can produce 1 kw to 115kw power depending upon the connected/withdrawing load. Normally the generator can produce 115% of designed rating.

#### deepak kapoor

• Dec 9th, 2016

True formula is Ns =120F/P

#### Sushil

• Oct 31st, 2016

Frequency is constant in a grid is because 1) All Equipment are designed for 50hz. Frequency 2) We genrate 50hz. 230 volts so in India all generation plant are 50hz. 3) All grid are inter-conected s...