Huawei SUN2000-33KTL-JP User Manual page 113

SUN2000-(33KTL, 40KTL)-JP
User Manual
Item
Grounding
reliability
Table 9-2 Spot check list
Item
Spot-check
terminal signal
detection (2-pin
spot-check
terminal)
Spot-check
terminal signal
detection (12-pin
spot-check
terminal)
Figure 9-1 Connecting cables to a 2-pin spot-check terminal
Issue 07 (2019-06-30)
Check Method
caps.
Check that ground cables are securely connected.
Check Method

The spot-check terminal signal measures the protection time of the
AC relay.
 Figure 9-1 shows the cable connection to the spot-check terminal.

Table 9-3 describes the ports on the spot-check terminal.
 The spot-check terminal signal measures the protection time of the
AC relay, impedance between the PV input string and the ground,
and the impedance between the SUN2000 DC input and the
ground.
 Figure 9-2 shows the cable connection to the spot-check terminal.

Table 9-4 describes the ports on the spot-check terminal.
Copyright © Huawei Technologies Co., Ltd.
9 Maintenance
Maintenance
Interval
The first inspection is
half a year after the
initial commissioning.
From then on, perform
the inspection once six
months to a year.
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