Hi everyone, is anyone can give me the rules concerning the instantaneous voltage of gen set. we have small gen set being tested for voltage regulation from 100% to 0% load. rated kw is 150kw, rated current is 271 amps, 400 volts 50 hz.
during the test we have observed the ff: ( we are using water resistance )
from 100% ( 150 kw ) to 0% kw load , momentary voltage is around 480 volts,
if the current is around the rated ( 271 amps) @ 100% kw load , during the momentary test , the circuit breaker trip off.
on the other hand,if the current is less than the rated , i.e 255 amps at 100% kw ( 150kw) load , during momentary test, the circuit breaker doesn't go off.
Anyone can clarify this ?.Does any rules applies on it?
appreciate any help. thanks in advance.
Instantaneous Voltage 
Re: Instantaneous Voltage
