Checking Spot-Check Terminal Signals - Huawei SUN2000-50KTL-JPM0 User Manual

SUN2000-(50KTL-JPM0, 50KTL-JPM1, 63KTL-JPM0)
User Manual
Item
Electrical
connections
Grounding
reliability

8.2 Checking Spot-check Terminal Signals

The spot-check terminal signal measures the protection time of the AC relay, resistance of PV
string input to ground, and the resistance of the SUN2000 DC side input to ground.
Figure 8-1 Spot-check terminal
Issue 01 (2018-09-30)
Check Method
 Check that cables are securely
connected.

Check that cables are intact, in
particular, the parts touching the
metallic surface are not scratched.
 Check that the unused COM, USB,
and RESERVE ports are covered by
watertight caps.
Check that ground cables are securely
connected.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Maintenance
Frequency
The first inspection is six
months after the initial
commissioning. From
then on, the interval can
be six or twelve months.
The first inspection is six
months after the initial
commissioning. From
then on, the interval can
be six or twelve months.
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