SOFAR 1~4KTL2-G3 User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
2.2.Function characteristics
DC power generated by PV array is filtered through Input Board
before entering into Power Board. Input Board also offer functions
such as insulation impedance detection and input DC voltage /
current detection. DC power is converted to AC power by Power
Board. AC power is filtered through Output Board then AC power is
fed into the grid. Output Board also offer functions such as grid
voltage / output current detection, GFCI and output isolation relay.
Control Board provides the auxiliary power, controls the operation
state of inverter and shows the operation status by Display Board.
Display Board displays fault code when inverter is in abnormal
operation conditions. At the same time, Control Board can trigger
the relay so as to protect the internal components.
Function module
A. Energy management unit
This control can be used to switch the inverter on/off through an
external (remote) control.
B. Feeding reactive power into the grid
The inverter is able to produce reactive power and can therefore
feed it into the grid through the setting of the phase shift factor.
Feed-in management can be controlled directly by the grid
company through a dedicated RS485 serial interface.
C. Limiting the active power fed into the grid
The inverter, if enabled can limit the amount of active power fed
into the grid by the inverter to the desired value (Expressed as a
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