Can you introduce me some protection circuits in solar array ?

Question

and also please note some useful web site in this field !

Answer 1

Protection on my system consists of switches and fuses, and a continuous ground connection between each module and an earth ground.

One fused switch isolates the modules from the rest of the system. Another isolates the system from the public utility,

A fuse protects the AC circuit feeding the control unit. Another protects internal components.

And,of course, there is the building service entrance switch and fuses.

Answer 2

I migth add ground fault detectors and lightingrods