Connection Of The Energy Meter - ABB REACT 2 Series Product Manual

C
onnection of the energy meter
Warning – The meter must always be protected by fuses or circuit breakers on the incoming
side. It is recommended that the input voltage sensing is protected by fuses rated 6A (gL–
gG type) or by circuit breakers rated 6A (B/C type) installed near the meter.
To avoid risks of electrical shock, all wiring operations must be carried out with the AC di-
sconnect switch (or the supply meter) upstream of the meter disconnected.
If the energy meter is not installed or not communicating, the REACT2 system will manage
the functions connected to energy storage in provisional mode; where power is available from
the sun, REACT2 charges the battery with 300 W. The rest of the power is fed into the grid.
This mode makes it possible, even if there is no meter, to charge the battery.
Management of the storage system in order to optimise the energy self-
reading of the power by the meter. On the basis of the type of electric
supply the following are available:
for single-phase grid up to 30 A.
54
for single-phase grid up to 65 A.
40
for three-phase grid up to 65 A (it can be used for single-
58
phase grid if correctly installed).
for three-phase supplies with an external current transformer
58
(it can be used for mono-phase supplies if correctly installed).
The energy meter will communicate with the REACT2 through a dedica-
ted serial line (RS485 METER).
The connection of the RS485 METER line to the REACT2-UNO must be
made using the dedicated METER connector
BATTERY
COMM.
POWER
DC SWITCH
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5 - Installation
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PV
METER
BACKUP GRID
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