... (A)AccuracyConnectionThree-Phase Four-line Active Power Mechanical Watt-hour MeterDT8623*220/3801.5(6), 3(6)2.0Mutual ... induction5(20), 10(40), 15(60), 20(80), 30(100)2.0DirectThree-Phase Three-line ... 3(6)2.0Mutual induction5(20), 10(40), 15(60), 20(80), 30(100)2.0Direct3*1001.5(6 ... 2.0Mutual inductionThree-Phase Four-line Reactive Mechanical Watt-hour MeterDX8623*3801.5(6), 3(6)3.0Mutual ...