Delta PhotoVoltaic RPI-C500, Manual

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NSTALLATION
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UIDE
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NSTALLATION
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HOOSE
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NPUT
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USE
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IZE
5.2.2. Choose Input DC Fuse and Cable Size
The central inverter can be delivered with input DC fuses by customer requirement
due to the difference of the installation site. In this case, install appropriate DC fuses
to protect the inverter DC circuit and the DC input cables in a short-circuit situation.
Protect the positive and negative poles of an input with separate fuses.
The table below shows the rated DC current for selecting the input DC fuses as per
the number of the DC input connections to the solar generator.
No. of DC
input
connections
Rated current for the input
DC fuses (A)
Part number Vender
4 315A 1000GH-315UL
Hinode
5 315A 1000GH-315UL
6 315A 1000GH-315UL
7 250A 1000GH-250UL
8 250A 1000GH-250UL
Note:
1. The default setting of fuse is 250A*8 runs.
2. Must consult with Delta in advanced if using other rating type of fuse.
5.2.3. Positive/Negative Grounding
The PV array can be grounded using positive grounding or negative grounding. To
ground the PV array follow these steps: (Figure 5-5)
1. Connect the grounding cable to the fuse holder.
2. Secure the grounding cable to the DC+ or DC- bus bar with one screw.
Positive Grounding Negative Grounding
Figure 5-5. Configure to Positive (DC+) / Negative (DC-) Grounding
Note:
Positive and negative grounding can be set via display. Please refer to 5.10.7.3 Install
Settings.
Fuse Holder
Fuse Holder