Problem in Excitation Voltage

hi,

would you pls give me more informations about your question?

i mean which excitation voltage are you talking about, is it ac generator? is it single or three phase? is there an AVR with this generator?

now i understood that you are an electrician when you said excitation voltage! but it looks that i am wrong when you said the voltage reading is changing and there are no effect on the other parameters!

what you mean by parameters?