Huawei SUN2000-30KTL-US User Manual page 69

SUN2000-(25KTL, 30KTL)-US
User Manual
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Context
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Table 5-2 DC terminal selection requirements
Number of Inputs
1
2
3
4
5
6
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Issue 09 (2019-06-30)
If the SUN2000 is directly connected to the power grid with the neutral wire connected to
the PGND cable (for example, a low-voltage power grid or a power grid with the neutral
wire grounded), do not ground the positive and negative terminals of PV strings.
Otherwise, the SUN2000 will fail to work.
During PV string and SUN2000 installation, the positive or negative terminals of PV
strings may be grounded if power cables are not properly installed or routed. In this case,
an AC or DC short circuit may occur and damage the SUN2000.
DC terminal selection
Figure 5-13 shows the DC terminals at the bottom of the SUN2000.
the requirements for DC terminal selection.
Figure 5-13 DC terminals
SUN2000
Connected to any one route
Connected to routes 1 and 3
Connected to routes 1, 3, and 5
Connected to routes 1, 2, 3, and 5
Connected to routes 1, 2, 3, 4, and 5
Connected to routes 1, 2, 3, 4, 5, and 6
DC input power cable specifications
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
Table 5-2 describes
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