... voltage and phaseØ angleA,B,C phase current(1-4 ways)ØTotal phase, A,B,C phase active power(1-4Ø ways)Total ... phase, A,B,C phase reactive power(1-4Ø ways ... factor(1-4Ø ways)Computation Total phase, A,B,C phase active energy(1-4 ways) Data acquisition Adopt RS485 digital communicate ...