I am using the ADE7878 in a configuration using two voltage sensors, like Figure 14 on AN-639. I have a few questions:
- Although the Vbp input is not used, I am assuming that I should still connect the Vbp pin through a parallel RC to ground. Is that correct?
- I've configured CONSEL[1:0] to 10, and from my limited testing, the phase B reading is being calculated correctly. My setup makes it difficult to check an unbalanced scenario. Are the calculations of the phase B voltage vector calculations, such that it will still be reasonable in an unbalanced system? There was a note on AN-639 saying that a symmetrical, balanced system is assumed.
- Any other recommendations for this scenario?
Let me know what you think, thanks!