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※ 6.2 AC Connection
6.2.1 AC Side Requirements
①
An independent AC breaker is required in both on-grid and back-up
output side, and any loads cannot be connected with inverter directly.
②
Before making the connection of AC cable, please confirm all DC &
AC power source are disconnected from the inverter.
③
The Wattsonic
4.0~20.0kW-3P
series three-phase high voltage
hybrid inverter applies to the three-phase power grid with a voltage of
230/400V and a frequency of 50/60Hz.
④
Connect the inverter to the grid only after getting an approval from
the local electric power company.
NOTICE
A three-phase AC breaker needs to be installed on the AC side of the 4.0~20.0kW-3P. To
ensure that the 4.0~20.0kW-3P can safely disconnect itself from the power grid when an
exception occurs, select a proper overcurrent protection device in compliance with local
power distribution regulations and Max. input (output) current of 4.0~20.0kW-3P AC side.
The allowable AC cable of wire diameter and cross-sectional area for Wattsonic
4.0~20.0kW-3P are as shown in the following:
Figure 5-4
Wir
e Diamete
r
13~18mm
Cross-sec
tional
Area
2.5~10mm
2
Determine whether an AC circuit breaker with greater overcurrent
capacity is required based on actual conditions.
NOTICE
