The meter constant of a single phase energy meter is 400 rev / kWh. It is found that with a load of 3 kW. It makes 50 revolutions in one minute, the percentage error is –
1
90.9%
2
75.6%
3
150%
4
120%
The meter constant of a single phase energy meter is 400 rev / kWh. It is found that with a load of 3 kW. It makes 50 revolutions in one minute, the percentage error is –