Wiring; Preparation Before Wiring - Delta RPI-H3 Operation And Installation Manual

Wiring

5 Wiring

5.1 Preparation before Wiring

1. Make sure whether the voltage values, polarities are correct.
2. When grounding of the solar array is necessary, an isolation transformer is required
due to the RPI-H3/RPI-H5 not having a galvanic isolation between the DC-input and
AC-output.
3. The ground fault detection is a fixed internal setting. It always works and can not be
modified.
4. The whole system wiring is shown as in Figure 5-1 and Figure 5-2.
5. Please refer to Figure 5-1 for the connection. Inverter can accept DC inputs in parallel
(1 MPP tracker/2 parallel inputs).
PV Array
1
AC Wiring
Figure 5-1 : Connection of system
Distribution box
2
DC Wiring
3
Communication
Wiring
22
(Parallel)