Ungrounded System-Advantage, Drawbacks and Fault finding

[@efraimmasarrang]

Hi sir, can you explain why the voltage in the healthy phases increase?

[@rajababu.n6265]

It could be of many reasons, loading and unloading effects, switching surges, type of loads and ambient conditions like lightening etc.

[@carlitosways6442]

Your pic blocking the screen...

[@rajababu.n6265]

ok bro i will make it small.