Table of Contents
Advertisement
4.3 Electrical wiring
Before connecting the AC and DC
cables to the inverter, check the data
plate on the inverter matches the
installation requirements for both AC
and DC. (Voltage, power, frequency,
etc). Failure to do so could damage
the inverter or cause a malfunction
during operation.
The Grant range of inverters are
designed only for Solar PV Grid-
Connected installations only. It is
forbidden to connect this inverter to a
public DC network or an island (battery)
system.
Only Grant Solar PV modules
(GPV180M) are permitted to be fitted to
this inverter. Do not connect any other
type of DC generating device to this
inverter.
DC CONNECTION
The length of the cable between the PV
array and the inverter should not
exceed 10m. This includes any DC
isolators that are fitted between the
array and the inverter.
Longer cables could lower the overall
system efficiency and could cause
electromagnetic interference.
* The inverter uses a MC Type4 DC
plug and socket for connecting the PV
array cables.
* The cross section of the cable must
not be less than 4mm².
* The DC array cable must be rated for
1000VDC
AC CONNECTION
The flex used for each inverter is as
follows:
* For Grant AS1.0 and AS1.5 inverters,
heat resistant 1.5mm² flex must be
used.
* For AS2.0 and AS3.0 inverters, heat
resistant 2.5mm² flex must be used.
The connection of the wires to the AC
plug is shown on Figure 4.
Figure 4: AC Plug Wiring diagram
9
Advertisement
Table of Contents
