Free2Move eSolutions easyWallbox Manual De Instalación página 513

4.8.3. DPM sensor installation on a single-phase domestic electrical system with
power generation systems (e.g photovoltaic system)
The following single line diagram represents connection of
single-phase power supply combined with the output of a PV inverter. In such
cases the point to install DPM is not the output of energy meter, but it should be
connected to a single wire (phase conductor) that passes only (It) the total
current consumed by all electrical loads including the
illustrated in Figure 4. The energy meter in PV system applications is bidirectional,
hence in order to avoid DPM failure, do not connect DPM sensor to the output
of bidirectional energy meters. The DPM sensor must not measure the exceeded
power by PV that is feeding back into the grid.
When easyWallbox
limit should be set considering only the maximum contractual power coming from
the grid not the summation of power generated by PV and contractual power.
easyWallbox
detects only the variation of all electrical loads connected together with
easyWallbox
the consumption of total loads (It).
Figure 4. Schematic view of connection of easyWallbox and DPM to a power supply with PV
system in Power Upgrade Mode
is connected to a supply network with PV system the DPM
does not regulate its power based on the generated power, but it
to the same single phase and so regulate its power depending on
easyWallbox
easyWallbox itself as
DPM:
Dynamic power management sensor
RCD:
Residual current device
MCB:
Miniature circuit breaker
eWB: easyWallbox
PV:
photovoltaic system
to a
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