Reading method of three-phase watt-hour meter

The direct reading of an electric meter without a transformer is the meter reading minus the number on the meter, and the electric meter with a current transformer is multiplied by the ratio of the current transformer and the ratio of the voltage transformer.

Reading Area

The reading of three-phase four-wire watt-hour meter can be directly seen in the reading area of its watt-hour meter.

Confirm electricity consumption

When confirming the actual power consumption, it is necessary to calculate the actual power consumption according to whether the incoming line passes through the transformer. If there is a transformer, you need to multiply the reading by the multiplier of the transformer to calculate the actual power consumption.

Multiplication calculation

The ratio is not visible in the table, but the product of the ratio of current transformer and the ratio of voltage transformer (if any).