Description
The choice of energy meter depends on the type of installation, the number of phases you wish to measure, and the maximum current per phase. Examples: for a three-phase connection to the utility grid, a three-phase meter is recommended. In the case of a three-phase photovoltaic inverter, a three-phase meter must also be used. If you have a single-phase connection to the utility grid, choose a single-phase meter.
In a system with a single-phase connection and a photovoltaic inverter that requires measurement with an energy meter, you can opt for two ET112 meters or one ET340 meter. If the application exceeds the maximum rated current, it is advisable to use an energy meter with current transformers. Please also note that most photovoltaic inverters are equipped with a ‘direct reading’ function via the Victron system, so it is not necessary to measure their output with an energy meter.