Operation principle and hardware description 33
Q10 Auxiliary control
voltage switch
Hand-operated switch which connects the auxiliary control voltage to
the inverter.
U1 Inverter module Converts the DC voltage to AC voltage. The operation is controlled
by switching the IGBTs.
U3 LCL filter Smooths the current and voltage waveform.
Z1.1-3 Common mode filter Reduces common mode voltages and currents in the solar generator
and inverter main circuit and AC output.
Z10 EMC filter (option
+E216)
EMC filter for low voltage distribution networks.
Symbol Terminal/Component Description/Operation
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