Installation and Operation Manual 6
AC
-
Connection
Unit
F
eeding
AC
pow
er to P
ubli
c
U
t
ili
ty
onl
y
AC-Output
(
Public Utility
)
4 Overview
4.1 Introduction of Grid-connected System
Basically Grid-connected system is comprised of 4 portions: PV array,
PV inverter, AC connection unit and Public Grid connection unit.
Once PV arrays receive sun shines, they will generate DC current and
feed into PV inverter which is configured between DC input and
municipal AC grid. Through converting DC into AC, the solar energy is
transmitted into municipal Electrical Grid.