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ADE7762 датащи(PDF) 16 Page - Analog Devices |
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ADE7762 датащи(HTML) 16 Page - Analog Devices |
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16 / 28 page ![]() ADE7762 Rev. 0 | Page 16 of 28 Figure 18 shows the connections of the ADE7762 analog inputs with the power lines in a 3-phase, 3-wire delta service. CT Rb* IAP IAN SOURCE Rb* Ra* Rb* VR* Rf Cf Cf VN Ra* VR* Cf LOAD PHASE A PHASE B PHASE C CT Rb* VAP VBP ANTIALIASING FILTERS IBN IBP *Ra >> Rf + VR; *Rb + VR = Rf ANTIALIASING FILTERS Figure 18. 3-Phase, 3-Wire Meter Connection with ADE7762 Note that only two current inputs and two voltage inputs of the ADE7762 are used in this case. The active power calculated by the ADE7762 does not depend on the selected channels. Figure 19 shows the connections of the ADE7762 analog inputs with the power lines in a 3-phase, 4-wire Wye service. SOURCE ICP ICN LOAD CT IBP IBN PHASE A PHASE B PHASE C Rb* Ra* VR* Cf VAP CT Rb* ANTIALIASING FILTERS IAP IAN CT Rb* Rb* Ra* VR* Cf VCP Rf CF VN Rb* Ra* VR* Cf VBP Rb* *Ra >> Rf + VR; *Rb + VR = Rf ANTIALIASING FILTERS ANTIALIASING FILTERS Figure 19. 3-Phase, 4-Wire Meter Connection with ADE7762 |
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