Recent content by tobiascarter

thanks for the responses, but the last one lost me. I am very ammature when it comes to this stuff. Its actually a multiple choice question with the answers being... a)15kw b)apparent power c)2w d)3000w e)11000va my guess is apparent power. and i think (a) is there to trick you, as...

it doesn't say? this is why i don't understand? is it asking what the apparent power value is? if so... Apparent pwr= true power/ power factor is true power 12kw? if so... 12000/0.8= 15000va =15kva does that seem right?

Hi there, Can some one assist me as to how to answer this question... An alternator is connected to a 12kw load and operating at a power factor of 0.8 lag. what is the kva rating of the alternator required to drive the load? i don't know what formula to use so Any help would be great...

and if it is under excited??

Here is a multiple choice question i was completely stumped on, and still can't find the right answer for in my textbooks... Name 2 forms of excitation with respect to synchronous motors: a) under and over excitation b) dc & ac variation c) dc excitation and load variation d) armature and...