How To Read The Single-phase Active Energy Meter Of The Power Fittings Current Transformer?

How to read the single-phase active energy meter of Insulation Accessories current transformer?
After the single-phase energy meter is equipped with a current transformer, the measurement range of the single-phase energy meter is expanded. When calculating the power consumed by the user, the power consumed by the energy meter should be multiplied by the corresponding current ratio to obtain the actual power consumed.
Example: A user's single-phase active energy meter is equipped with a current transformer with a current ratio of 300/5. The reading of the energy meter on June 1 is 0345kW.h, and the reading of the energy meter on July 1 is 0445kW●h. How much power is consumed this month?
Solution: Power consumption = (this month's energy meter reading minus last month's energy meter reading) x current ratio current ratio K = 300/5 = 60 (300A is the primary rated current of the transformer, 5A is the secondary rated current of the current transformer)