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© 2007 Schneider Electric. All Rights Reserved.
1
63230-216-229-B1
Installation
Base Unit
Connecting Main Voltage Inputs
Phase Voltage Input Connection Variants
Variant 1: Measuring Three
Phase-to-Neutral Voltages
(3 V
Ln
, Standard Connection)
Variant 2: Measuring Two Phase-to-Phase Voltages (2 V
LL
)
DE51795
DE51796
Measuring three phase-to-neutral voltages allows the
calculation of residual voltage, VrΣ
This variant does not allow residual voltage calculation
Variant 3: Measuring One
Phase-to-Phase Voltage (1 V
LL
)
Variant 4: Measuring One Phase-to-Neutral Voltage (1 V
Ln
)
DE51797
DE51798
This variant does not allow residual voltage calculation This variant does not allow residual voltage calculation
Residual Voltage Input Connection Variants
Variant 5: Measuring Residual
Voltage Vr
Variant 6: Measuring Residual Voltage VNT
in Generator Neutral Point
DE51799
DE51800
Vcn
Vbn
Van
c
b
a
c
b
a
Vcn
Vbn
Van
Vcn
Van
Vbn
c
b
a
Vcn
Vbn
Van
c
b
a
c
b
a
Vcn
Vbn
Van
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