MCCB electronic protection

[STONE85]

Hello,
I am having some difficulty understanding the electronic protection functions of MCCBs. Does anyone know of any good material that explains LSIG and VE functions and when these can be applied. Eg just LSI, LSIG or LI. Also electronic VE.

Thank you

 

[RedSnake]

This might be a bit informativ

https://www.youtube.com/watch?v=yzXROOX2LfI

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein

 

[STONE85]

Thank you for this.