What are the advantages of a single-phase energy meter?

The advantages of three-phase power meters are as follows:

It does not require any type of additional starter to perform with a heavy industrial motor as it has enough power to provide the required torque.
The more phases of the power supply system, the smoother the voltage of the three-phase power supply.
This metering system helps to run large machinery well. For commercial and industrial loads, three-phase meters are preferred due to the high power demand.
It does not require an excessive amount of conductive material to conduct electricity. Therefore, these meters are a more cost-effective and economical solution.