1. Class A Power Quality Measurement : Harmonic and inter-harmonic, voltage deviation, frequency deviation, unbalance, fluctuation and flicker, transient disturbances, EN50160 statistics
2. Class 0.2s Accuracy : Harmonic, ,fundamental harmonic, sub-harmonics energy
3. High Resolution Failure Record : support 1024 point/cycle, Min.tansient disturbance record for 20us
4. Failure Diagnose Location : support voltage sag source, harmonic source, flicker source, asymmetric source location and power supply failure type diagnose