1.An alternator has a phase sequence of RYB for itB phase voltage. In case offield current is reversed, the phase sequence will become

2.Pure inductive circuit takes power (reactive) from the a.c. line when

3.The insulation of modern EHV lines is designed based on

4.With the help of a reactive compensator it is possible to have (u) constant voltage opei ation only

5.At a particular unbalanced node, the real powers specified are Leaving the node : 20 Mw, 25 Mw, Entering the node: 60 Mw, 30 MW. The balance power will be