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Etrel Load Guard | User manual
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3
CONNECTING THE LOAD GUARD
Load Guard is installed in electrical cabinet, after the main counter. It
measures currents of all phases and is sending the measurements to the
charging station in real time to ensure that the overload of the fuses
cannot happen.
It can measure in both directions, so it can also measure the energy that
is flowing back to the electrical grid. In case of production of energy at the
location it can turn up the charging power suppling the electric vehicle.
When bought at the same time, the Load Guard and charging station
would already be preconfigured and both devices would be already
paired.
Load Guard can be connected single-phase or three-phase. Current
clamps should be put on certain phase conductors and the Load Guard
should be properly connected to the power supply first and only then to
the LAN.
Figure 6: Load Guard installed in electrical cabinet
