Harmonics™ Features
Comprehensive Harmonics Computations
- Both integer and non-integer harmonics supported
- View flows of an individual harmonic current (i.e. 3rd, 5th, 7th, 11th … 50th) directly on the one-line
- The source of this individual harmonic current can be from all harmonic-producing equipment in the system or from a user-specified current injection at a bus
- Troubleshoot resonant areas and determine the cause of high total harmonic distortion (THD) currents
- Triplen harmonics modeled as either zero sequence or positive sequence
- Full long line simulation including hyperbolic correction
- Skin effect simulated with two common approaches
Frequency Scan Plots
- Shows resonant and natural filter conditions
- Positive and zero-sequence scans
- Impedance bus scans (ohms or per-unit)
- Current for non-bus scans (amps or per-unit)
- Full customization capabilities including: quantity of items to plot, colors, fonts, ranges, copying/pasting of graphics, and save options
- Allows 1–10 plots with multiple Y axes
Detailed Library of Harmonic-Producing Equipment
- DC or inverter drive systems, arc and induction furnaces, switch-mode power supplies, rectifiers, PWM drives, fluorescent lighting, and welders
- Full customization ability to add/modify harmonic-producing equipment
- All equipment is modeled by injection of harmonic currents into the system
- EasyPower loads, motors, MCCs, and panels can be specified as harmonic-producing sources
Detailed Harmonic Filter Modeling
- Model notch, 1st order, 2nd order, or 3rd order filters
- Detailed reporting for filter-component harmonic calculations
IEEE 519 Verification
- Current-demand distortion comparison for odd and even harmonic orders, and TDD
- Voltage THD comparison
Complete Summation Output on the One-Line
- Reports ITHD, IRSS, IT Product (for telephone interference)
- VTHD, VRSS, VTIF (for telephone interference), VSUM
- Transformer K-factor and C57.110 de-rating, conductor de-rating, and losses
True One-Line Integration
- Total integration of all voltage and current harmonics and their effect on electrical equipment, including harmonic overloads, losses, and K-factor requirements
- Problem areas are highlighted on the one-line, eliminating time-consuming guesswork
Try Before You Buy
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