Photovoltaic system, has photovoltaic inverters connected in series between control signal input terminal and control signal output terminal with respective feedback connections

摘要

The system has a system protection interface (8) including a replacement dome switch connector (9), which is coupled to a control terminal (13) of a replacement dome switch (7). A control signal output terminal (10) outputs a control signal. A signal evaluation unit measures network parameters, evaluates a pending signal on a control signal input terminal (11) and actuates the dome switch based on measured parameters and pending signal. Photovoltaic (PV) inverters (1 1-1 n) are connected in series between the control signal input and output terminals with respective feedback connections (3).