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INSTALLATION GUIDE
MODULAR SUNWAY TG
TE OD
Rev. 03
– 01/06/2018
55/
139
SUNWAY TG
1500 1500V
TE
2
same phase as
the transformer
phase connected
to terminal X2B-1
(X2-2, X2-3) (see
Table 10: AC Module output terminals
Figure 28: LV/MV Transformer connection
WARNING
The number of terminals in the X2 terminal board varies based on the product
configuration. The correct connection of the AC cables based on the LV/MV transformer
configuration is essential. A wrong connection of the AC cables may cause the inverter
malfunction and damage.
The AC module is provided with N. 3 inputs dedicated to the connection of each grid phase. For technical
data concerning the connectable cable, the maximum allowable cable cross-section and the type of cable
lug, please refer to section 12.8.
Cable entry is at the bottom of the AC section. Do the following:
1. Insert the cable into the cable lug.
2. Strip the cable.
3. Crimp the ferrule.
4. Clean the contact surface with a clean cloth and ethanol-based cleanser.
5. If oxidized, clean the contact surface with an abrasive tool until metal slightly shines, then remove metal
dust with a clean cloth and ethanol-based cleanser.
6. Do not touch the contact surface once cleaned.
7. Use the nut and bolt supplied to fasten the ferrule by applying the required torque (please refer to section
8. Tighten the cable lug.
Do the same for all the cables to be connected. Plug the unused cable lugs.
X2
X2B
FROM DC
MODULE
1
FROM DC
MODULE
2
L1
L2
L3
L1
L2
L3
BT POWER
TRANSFORMER
MT
X2
X2B
L1
L2
L3
MT
FROM DC
MODULE
1
FROM DC
MODULE
2
BT
S000808