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ADE7752B
Figure 17 shows the connections of the ADE7752B analog
inputs with the power lines in a 3-phase, 3-wire delta service.
Figure 18 shows the connections of the ADE7752B analog
inputs with the power lines in a 3-phase, 4-wire Wye service.
Ra*
Rb*
Cf
Ra*
Rb*
Cf
VR*
Rb*
CT
ANTIALIASING
FILTERS
VAP
IAP
IAN
VR*
Rb*
CT
ANTIALIASING
FILTERS
VAP
IAP
IAN
PHASE A
CT
SOURCE
PHASE B
PHASE C
CT
Rf
Cf
VN
LOAD
PHASE A
SOURCE
PHASE B
PHASE C
Ra *
Rb*
VR*
CT
Cf
Rb*
ANTIALIASING
FILTERS
IBP
IBN
VBP
Ra*
Rb*
Cf
Rb*
ANTIALIASING
FILTERS
IBP
IBN
Ra *
Rb*
Cf
Rb*
ANTIALIASING
FILTERS
ICP
ICN
LOAD
VR*
VBP
VR*
VCP
*Ra >> Rf + VR; *Rb + VR = Rf
Figure 17. 3-Phase, 3-Wire Meter Connection with ADE7752B
Rf
CF
VN
*Ra >> Rf + VR; * Rb + VR = Rf
Note that only two current inputs and two voltage inputs of the
ADE7752B are used in this case. The active power calculated by
the ADE7752B does not depend on the selected channels.
Rev. 0 | Page 15 of 24
Figure 18. 3-Phase, 4-Wire Meter Connection with ADE7752B
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