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3.5 Electrical connection
3.5.1 Connection to the Grid (AC output)
1) Add breaker or fuse to AC side, the specification should be more than 1.25 times of
rated AC output current.
2) The PE line of inverter should be connected to the earth, make sure the impedance
of neutral wire and earth wire less than 10 ohm.
3) Disconnect the breaker or fuse between the inverter and the utility.
4) The integrated leakage current detection device of the inverter can detect external
leakage current in real time. When the detected leakage current exceeds the limit
value, inverter will quickly disconnect with the grid. If the leakage current protection
device is installed externally, the action current should be 300mA or higher.
Connect the inverter to the Grid as follows:
1. Strip off N/L1/L2/L3 cables as figure 3-5:
A
C
D
B
No.
Description
Remark
A
Protective layer
Diameter ranges
:
22-27mm
B
Length of stripped off
15mm
C
Insulate layer
-
D
Cross section of ac cables
10-16mm²
Figure 3-5 Strip off N/L1/L2/L3 cables
2. Strip off PE cable as figure 3-6
Figure 3-6 Strip off PE cables
3. Insert AC cables through cable gland from outside, Pull the cables through and fix N/L1/L2/L3/PE cables.
ends to the terminals according to markings
Fix (Torque: 2~2.5 N.m) the connector of AC cable to the corresponding terminals.
Summary of Contents for NAC10K-LV
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