For the following questions answer them individually
As per IE rules the maximum allowable variation between declared and actual voltage at consumer's premised should be
Alternator used in hydel power station has more number of poles in it than used in thermal power station, because
The connected load of a comsumer is 2kW and the maximum demand is 1.5kW. The demand factor of the consumer is
A consumer is offered the following rate of tariff. He has to pay a fixed charge of Rs. 1,000 per month and a running charge of Rs. 4.50 per unit consumed. If the consumer runs a motor load of 1kW at 0.85 power factor lagging on an average of 15 hours per day, his annual bill is
In AC operated electromechanical contractors, the problem of chattering is eliminated by
