1) What do you mean by balanced voltage?
2 What do you mean by balanced impedance?
3) What do you mean by phase sequence?
4) Write down the relation between line and phase value of voltage and current in the balanced star connected load?
5) Write down the relation between line and phase voltage of voltage current in the balanced delta connected load.
6) Write down the relation between power factor and wattmeter readings in two-wattmeter method of power measurement.
7) What do you understand by balanced load in three phase circuit?
8) When a three phase supply system is known as balanced supply system?
9) Write down advantages of 3-phase system over 1-phase system.