Black Box IC109A-R2 Manuale di Installazione Pagina 34

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28
© 2007 Schneider Electric. All Rights Reserved.
1
63230-216-229-B1
Installation
Base Unit
Connecting Additional Phase Voltage
Input for Sepam™ B80
Connection to Measure an Additional
Voltage
DE51899
This connection is used to measure:
b three phase-to-neutral voltages Van, Vbn, Vcn on bus no. 1
b one additional phase-to-neutral voltage V'an (or one additional phase-to-
phase voltage V
LL
) on bus no. 2
DE51898
This connection is used to measure:
b two phase-to-phase voltages Vab, Vbc and one residual voltage Vr on bus no.
1
b one additional phase-to-phase voltage V
LL
(or one additional phase-to-neutral
voltage V'an) on bus no. 2
Vcn
Vbn
Van
c
b
a
Vcn
Vbn
Van
c
b
a
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