gideon

[Guest]

if you have a pf of 0.8pf 3phase and 1.0pf 1phase is it bad. and what is the acceptable range.the device is a generator. of a capacity of 900kva 3phase 60hz @480vac.

[marke]

Hello

The optimium power factor is 1.0 - you can not go higher.

 

Any power factor less than 1.0 will impact on the "system" efficiency.

It is common to target a power factor of 0.95 or better.

 

In the case of your generator, a lower factor of 0.8 will reduce the KW that you can load the generator up with. Your 900KVA generator will be fully loaded by a 720KW load at a power factor of 0.8, but 855KW with a power factor of 0.95

 

There will be more KW wasted in the alternator, transformer and cables at a pf of 0.8

 

Best regards,

[Guest]

how much of power output percentage is loss at 0.8 from the optimum 1.0.how bad is the generator performing in terms of percentage. thanks.

[marke]

If your generator is rated at 900KVA and your power factor is 0.8, then your maximum KW load is 900 x 0.8 = 720KW

 

You are operating at 80% of maximum Generator Power.

 

Best regards,