ADE7752BARW AD [Analog Devices], ADE7752BARW Datasheet - Page 17

• Manufacturer Part Number: ADE7752BARW
• Description: Polyphase Energy Metering IC with Pulsed Output
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
Figure 21 shows the connections of the ADE7752B analog
inputs with the power lines in a 3-phase 3-wire delta service.
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.
PHASE A
PHASE B
SOURCE
Figure 21. 3-Phase 3-Wire Meter Connection with ADE7752B
VR*
Ra*
Ra*
Rb*
VR*
Rb*
Cf
PHASE C
Cf
*
Rb*
Ra >> Rf + VR;
CT
CT
Rb*
ANTIALIASING
*
FILTERS
Rb + VR = Rf
Rf
ANTIALIASING
FILTERS
Cf
VN
VAP
IAP
IAN
IBP
IBN
VBP
LOAD
Rev. PrA | Page 17 of 27
Figure 22 shows the connections of the ADE7752B analog
inputs with the power lines in a 3-phase 4-wire Wye service.
PHASE A
SOURCE
Rf
Figure 22. 3-Phase 4-Wire Meter Connection with ADE7752B
VR*
Ra*
Rb*
VR*
Ra*
Rb*
CF
PHASE C
PHASE B
VN
Cf
Cf
Rb*
*
CT
Ra >> Rf + VR;
VR*
CT
Rb*
Ra*
Rb*
Cf
ANTIALIASING
ANTIALIASING
FILTERS
*
FILTERS
Rb + VR = Rf
CT
Rb*
VAP
IAP
IAN
ANTIALIASING
ICP
ICN
VCP
FILTERS
ADE7752B
LOAD
IBP
IBN
VBP