IEEE type AC1A Exciter model in PSS/E

[jakande805]

All,
On the ESAC1A exciter model block diagram, I am curious to know the description of the input "Ec" to the voltage transducer terminal. I can figure out that the output of this block "Vc" is the terminal voltage transducer output, however "Ec" is not well know defined to me.
Thank you

 

[wcaseyharman]

I’m pretty sure that’s the voltage droop/line drop compensation from the generator model (Xc*I_stator)

 

[jakande805]

Thank you so much Wcaseyharman for your response. I later found out from IEEE std 1992 that it is the generator terminal voltage.