47
are as follows
：
Check items before trial operation
Steps
Contents
Reference value
Results
1
Grid L line and N line
More than 100KΩ
2
Grid L line and PE line
More than 5MΩ
3
Grid L line and load L line
More than 5MΩ
4
Grid L line and load N line
More than 5MΩ
5
Grid N line and earth wire
More than 5MΩ
6
Load L line and N line
More than 5MΩ
7
Load L line and PE line
More than 5MΩ
Grid connection check
According to the wring diagram in the section
“Wiring of general & essential load
distribution board
”, check wiring is correct, check items are as follows:
Distributor test
No.
Contents
Requirements
Results
1
Check every active
line connection status
All the L lines are connected
correctly, without short circuit and
wrong connection.
2
Check every neutral
line connection status
All the N lines are connected
correctly, without short circuit and
wrong connection.
Current transducer check
Using ohm range of multi-meter to test connection port resistance (notice: according to the
internal connection diagram of MINI ES, test the resistance between CT1 and CT2 on the
plug board)
Related tool: multi-meter
before connecting to the current transducer, the resistance is 20.0
±
0.1
Ω
.
after connecting to the current transducer, the resistance is 18.5
±
0.5Ω.
Current transducer check
No.
Contents
Requirements
Results
1
Indoor current transducer correctly
connects to energy storage system
(CT1)
The resistance
is 18.5±0.5Ω
2
Photovoltaic current transducer correctly
connects to energy storage system
(CT2)
The resistance
is 18.5±0.5Ω
