ade7752a Analog Devices, Inc., ade7752a Datasheet - Page 16

• Manufacturer Part Number: ade7752a
• Description: Polyphase Energy Metering Ic With Pulse Output
• Manufacturer: Analog Devices, Inc.

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
ADE7752 are used in this case. The real power calculated by the
ADE7752 does not depend on the selected channels.
PHASE A
PHASE B
SOURCE
Figure 21. 3-Phase 3-Wire Meter Connection with ADE7752
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. C | Page 16 of 24
Figure 22 shows the connections of the analog inputs of the
ADE7752 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 ADE7752
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
LOAD
IBP
IBN
VBP