9-10 Technical Specifications650V AC DriveSupply Harmonic Analysis (230V unfiltered)Assumptions: (Short circuit fault to Neutral)5kA short circuit supply capability at 230V 1φ, equivalent to 146μH supply impedance7.5kA short circuit supply capability at 230V 3φ, equivalent to 56μH supply impedance10 kA short circuit supply capability at 400V 3φ, equivalent to 73μH supply impedanceTHD(V) x 100 = =∑ QQh21nh 40=h 2%where Q1n is the rated rms value of the fundamental voltage of the supply transformer.The results conform to stage 1, stage 2 and stage 3 of the Engineering Recommendation G.5/3 September1976, Classification ‘C’: Limits for Harmonics in the UK Electricity Industry .Drive Type 650VMotor Power (kW) 0.25 0.37 0.55 0.75 1.1 1.5 2.2 3.0 4.0Fundamental Voltage (V) 230 230 230 230 230 230 230 230 230Typical Motor Efficiency % 85 85 85 85 85 85 85 85 85Harmonic No. RMS Current (A)1 1.3 2.0 2.9 3.9 5.7 7.8 TBA TBA TBA3 1.3 1.9 2.9 3.8 5.5 7.45 1.2 1.9 2.7 3.5 5.0 6.77 1.1 1.7 2.5 3.1 4.4 5.49 1.1 1.6 2.2 2.7 3.7 4.611 1.0 1.4 1.9 2.2 2.9 3.413 0.8 1.2 1.6 1.6 2.1 2.315 0.7 1.0 1.3 1.2 1.4 1.417 0.6 0.8 1.0 0.8 0.8 0.719 0.5 0.7 0.7 0.4 0.4 0.321 0.4 0.5 0.5 0.2 0.2 0.423 0.3 0.3 0.3 0.2 0.3 0.425 0.2 0.2 0.1 0.2 0.3 0.427 0.1 0.1 0.1 0.2 0.3 0.329 0.1 0.1 0.1 0.2 0.2 0.231 0.0 0.1 0.1 0.1 0.1 0.133 0.0 0.1 0.1 0.1 0.1 0.235 0.0 0.1 0.1 0.1 0.1 0.237 0.1 0.1 0.1 0.1 0.1 0.139 0.0 0.1 0.1 0.1 0.1 0.140 0.0 0.0 0.0 0.0 0.0 0.0Total RMS Current (A) 3.2 4.8 6.7 8.3 11.7 15.3THD (V) % 0.5633 0.8016 1.0340 1.0944 1.4611 1.7778Lefflersgatan 1, SE-754 50 Uppsala, SWEDEN +46 (0)18-65 70 00 +46 (0)18-10 74 78 info@regal.se www.regal.se