Lets say I am calculating Voltage Drop (Vd) and have a load with a lagging PF, then arcos(PF) gives the angle, I make the angle negative since the load is lagging.
So Vd=Vo-(I<-Angle)*(R+j*X).
But Vd=abs(I)*(R*cos(angle)+sin(angle).
Why do I use the positive angle in the second equation and the negative in the first?
Maybe I am missing something simple.
So Vd=Vo-(I<-Angle)*(R+j*X).
But Vd=abs(I)*(R*cos(angle)+sin(angle).
Why do I use the positive angle in the second equation and the negative in the first?
Maybe I am missing something simple.
