unbalance voltage
unbalance voltage
(OP)
hi
when generator run, measured voltages : Vab= 417, Vbc=420, Vca= 392.
Vca is much lower than the others. what's the problem ? how can i fix it? thanks
when generator run, measured voltages : Vab= 417, Vbc=420, Vca= 392.
Vca is much lower than the others. what's the problem ? how can i fix it? thanks






RE: unbalance voltage
What are your loads comprised of?
Single phase and 3 phase?
What kind are they?
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: unbalance voltage
yours
RE: unbalance voltage
RE: unbalance voltage
Is it possible to measure the winding resistance between terminals?
RE: unbalance voltage
What size is the generator?
Is it delta or wye?
If it is wye, is the center point grounded?
Have you tried putting a load on it?
yours
RE: unbalance voltage
it's ok when i put load on it. but the voltage is still unbalance. the generator is paralled with other generators.
may be the ground resistance is high ?
RE: unbalance voltage
RE: unbalance voltage
RE: unbalance voltage