MODEL PROVA 19, 21, 23 True RMS value (V and A) Leakage Current Measurement at 10 μ A Resolution Harmonic Analysis (V and A) to the 99 th Order Better Understanding of High Frequency Harmonic Analysis (up to 5/6 KHz) Non-interrupted Harmonic Analysis Analysis of Total Harmonic Distortion (THD-F) Analysis of Crest Factor (C.F.) Fast Peak Function (33 μ s and 39 μ s) Programmable CT Ratio (1 to 250) Model 21(50A) and 23(100A) W, KW, H.P. VA, KVA, VAR, KVAR PF, Phase Angle ( Φ ) Energy (mWH, WH, KWH) Analysis of Standby Power Consumption Balanced 3 Φ Power Quality Balanced 3 Φ Sequence