UG-1098
ADE9000 Technical Reference Manual
Rev. 0 | Page 46 of 86
APPLYING THE
TO A 4-WIRE WYE
SERVICE
For the highest level of performance when measuring a 4-wire
wye service, connect the neutral to ground, as shown in
Figure 62. For this configuration, VCONSEL[2:0] = 000.
VAP
VBP
VCP
VAN
AGND
DGND
NEUTRAL
VBN
VCN
VBN
VB
220V
–120°
–120°
0.353V
220V
120°
120°
0.353V
PHASE C
VCN
VC
PHASE A
PHASE B
VAN
VA
220V
0°
220V
–120°
220V
120°
PHASE C
PHASE A
PHASE B
220V
0°
0.353V
0°
VCONSEL = 000
VA, VB, VC
15523-
062
Figure 62. 4-Wire Wye, Neutral Connected to Ground
Alternatively, a series impedance can be used on the neutral, as
shown in Figure 63, which can be advantageous if an isolated
power supply is used. Note that this configuration has poor
performance if the phase voltages are not balanced. For more
information, refer to the
. For this configuration,
VCONSEL[2:0] = 000.
NEUTRAL
VAP
VBP
VCP
VAN
AGND
DGND
VBN
VCN
VBN
VB
220V
–120°
–120°
0.353V
220V
120°
120°
0.353V
PHASE C
VCN
VC
PHASE A
PHASE B
VA
220V
0°
220V
–120°
220V
120°
PHASE C
PHASE A
PHASE B
220V
0°
0.353V
0°
VCONSEL = 000
VA, VB, VC
NEUTRAL ATTENUATION
NETWORK
15523-
063
Figure 63. 4-Wire Wye, Series Impedance on the Neutral
Phase sequence error detection is performed based on the
expected ABC sequence; see the Phase Sequence Error
Detection section for more information.
To obtain the overall power consumed by the system (active,
reactive, and apparent), add the contribution from the Phase A,
Phase B, and Phase C accumulations.