ADE7752/ADE7752A
Figure 21 shows the connections of the analog inputs of the
ADE7752 with the power lines in a 3-phase 3-wire delta service.
Note that only two current inputs and two voltage inputs of the
Figure 22 shows the connections of the analog inputs of the
ADE7752 with the power lines in a 3-phase 4-wire Wye service.
ADE7752 are used in this case. The real power calculated by the
ADE7752 does not depend on the selected channels.
Ra*
Rb*
Cf
Ra*
Cf
VR*
VAP
IAP
Rb*
Rb*
ANTIALIASING
IAN
VR*
VAP
CT
FILTERS
PHASE A
Rb*
CT
ANTIALIASING
FILTERS
IAP
IAN
PHASE A
SOURCE
PHASE B
Ra*
Rb*
Cf
CT
Rb*
ANTIALIASING
FILTERS
IBP
IBN
SOURCE
PHASE C
VN
LOAD
PHASE C
VR*
CT
VBP
PHASE B
CT
Rf
Cf
Ra*
Rb*
Cf
Rb*
ANTIALIASING
FILTERS
ICP
ICN
LOAD
Ra*
Rb*
Cf
Rb*
ANTIALIASING
FILTERS
IBP
IBN
Rf
VR*
VN
VCP
VR*
VBP
CF
* Ra >> Rf + VR; * Rb + VR = Rf
* Ra >> Rf + VR * Rb + VR = Rf
Figure 21. 3-Phase 3-Wire Meter Connection with ADE7752
Rev. C | Page 16 of 24
Figure 22. 3-Phase 4-Wire Meter Connection with ADE7752
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