SHANGHAI SERMATEC ENERGY TECHNOLOGY CO.,LTD
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4.7.4 System grounding
For the grounding of the energy storage system cabinet, the bottom of
the cabinet is equipped with a grounding copper bar. When grounding,
refer to the following table for the cable diameter, and the grounding
resistance is required to be less than 4 ohms.
4.7.5 Grid side wiring
•
Use the phase sequence table to measure to ensure that the
phase sequence of the connected cable is positive
；
•
Use a multimeter to measure and confirm that the cable
connected to the terminal is no current
；
•
The QF A / B / C / N phase of the output distribution switch of the
AC power grid is respectively connected to the A / B / C / N phase of
the power grid, including the connection of PE line.
NO.
Phase sequence
1
A phase
2
B phase
3
C phase
1
：
Phase sequence of circuit breaker is from left to right a, B, C;
2
：
Public N line
3
：
Bolt specification: M8, M6
Rated power
Recommended section of PE
line
（
mm
²）
50kW
≥
25
30kW
≥
10
