What does it mean V0 residual voltage External VT Uns/ √ 3 and External VT Uns/3 in Sepam series 20, 40,60 and 80?

Question

What does it mean V0 residual voltage External VT Uns/ √ 3 and External VT Uns/3   in Sepam series 20, 40,60 and 80?

Accepted Answer

In this FAQ we explain when to set External VT Uns/3 and External VT Uns/ √ 3.
Please check the attached file.
AEDL3

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