I.Introduction:    Analysis for 3P4W, 3P3W, 1P2W, 1P3W   True RMS Value(V 123 and L 123 )   Active Power(W, KW, MW, GW)   Apparent and Reactive Power (KVA, KVAR)   Power Factor (PF), Phase Angle (Φ)   Energy (WH, KWH, KVARH, PFH)   Current Measurement from 0.1mA to 3000A, Capable of Analyzing IT Standby Power Consumption to the Maximum Demand of a Factory   Display of 35 Parameters in One Screen(3P4W)   rogrammable CT (1 to 600) and PT (1 to 3000) Ratios   Display of Overlapped Voltage and Current Waveform   2.4M Memory with Programmable Interval (1 to 6000 seconds, 17000 Records for 3P4W System)   Output of Waveform, Power Parameters and Harmonics at Command   Large Dot Matrix LCD Display with Backlight   Average Demand (AD in W, KW, MW)   aximum Demand (MD in W, KW, MW) with Programmable Period   Harmonic Analysis to the 99th Order   Display of 50 Harmonics in One Screen with Waveform   Display of Waveform with Peak Values (1024 Samples/Period)   Analysis of Total Harmonic Distortion (%THD-F)   Graphic Phasor Diagram with 3 Phase System Parameters   Capture 28 Transient Events (Time+Cycles) with Programmable Threshold(%)   3 Phase Voltage Unbalance Ratio (VUR)   3 Phase Voltage Unbalance Factor (d0%, d2%)   Calculated Unbalance Current through Neutral Line (In)   Optical isolated USB Interface   Built-in Timer and Calendar for Data Logging   onductor Size: -Model 6801 30mm(approx) -Model 6802 5          55mm(approx),64*24mm(bus bar) -Model 3007 170mm(approx)      II.Specification                                       * Please refer to users manual for more detailed and up-to-date description of specification                                                          AC Watt (50 or 60 Hz, PF 0.5 to 1, CT=1)                                                                 Range                                     Resolution                                     Accuracy of Readings                                6800+6801         6800+6802                            6800+3007                                                   5.0 – 999.