pv testing

[tanglewood]

Hi, do i link mc4 connectors from inverter after dc isolator to perform Isc test with dc clamp meter? and also Voc with multimeter between pos and neg at same point? Basically the same as testing a module before going on roof except its the whole string?

 

[powervan]

u got it but turn dc isolator off before putting them together then turn back on! take reading

 

[tanglewood]

thanks powervan for confirmation

 

[powervan]

everybody got there own ways but thats a simple way for simple people!!like me!!

 

[infinity]

what about when the dc isolator is built into inverter? like one i had today with nasty tyco connectors?

 

[powervan]

oooh we always put a sep one before it!! dont care what the invertas got!! sod the exspence as my eyes cant take to much arc welding)))))