Surge protection

[darrenh]

I would like to know do you have to fit anti surge protection on solar pv on the AC and DC side to commerical installations

 

[Gavin A]

not usually. In fact I think with most inverters it's expressly against the manufacturers instructions to do so.

The inverters really are sophisticated pieces of kit and will usually have this sort of functionality built in if it's needed, and if it's not there then it's probably for a good reason.

 

[babba]

I... think ....gavin A is right all part of the inverter, well the last time I asked it was all part of g83 or g59 spec...

 

[BruceB]

The Sunny Tripowers (and probably other manufacturers, but do not know) have the ability to have surge protectors added on the dc side when in a situation vulnerable to lightning. Here is the para from the manual.

3.1 Surge Arrester Type II
Along with the standard integrated, thermally monitored varistors, the Sunny Tripower is equipped
with module slots for the additional mounting of surge arresters Type II. The modules are monitored
when plugged in. If a module is triggered, a warning is issued via the display or external
communication (e.g. Sunny WebBox or Sunny Explorer). This makes it easy to integrate the
Sunny Tripower into a lightning protection concept. The necessary modules are available as retrofit
kits for input A or input A+B.