What is the difference between the high-voltage side meter and the low-voltage side meter of the power supply company?

Hello, dear! Power supply high-voltage metering and low-voltage metering are carried out at the same time. Sometimes the power supply bureau only does high-voltage metering, but does not do low-voltage metering. Because high-voltage metering includes the power loss of the transformer, it charges more than low-voltage metering. In addition, the calculation methods of electric energy for high voltage metering and low voltage metering are different, and low voltage is the ratio of meter reading * current transformer;

High voltage reading: instrument reading * current transformer ratio * voltage transformer ratio.