Question { 5419 }

ther is any difference if we use 240 V A.C,50 Hz,1 Ph. in
place of 230 V A.C,50 Hz,1 Ph.

Answer

there is no much difference if we use 240v a.c instead of 230v
a.c

Question { 3722 }

what is phase angle and how its generate moreever how we
measure the phasse angle?

Answer

Measurement of the time delay between two periodic signals. The phase difference between two sinusoidal waveforms that have the same frequency and are free of a dc component can be conveniently described as shown in the illustration. It can be seen that the phase angle can be considered as a measure of the time delay between two periodic signals expressed as a fraction of the wave period. This fraction is normally expressed in units of angle, with a full cycle corresponding to 360°.