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How to measure residual voltage (V0) in Sepam series 20, 40, 60 and 80? Where to connect external VT?

The purpose of this FAQ is to explain different possibilities for V0 measurement and calculation in all Sepam ranges.
V3 sum and VT external method and way of VT connection
Please see the attached file.
AEDL3

Schneider Electric USA

Attachment(s)
FA276772.pdf [599.98 KB]
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