Identify harmonic distortion and power factor issues in your electrical system. Calculate THD, power factor, and receive actionable diagnostics.
Enter fundamental RMS values and harmonic components.
Key metrics, diagnostics, and recommendations.
Ratio of real power to apparent power. Low PF indicates inefficient energy use and higher losses.
Total Harmonic Distortion quantifies waveform purity. High THD causes overheating and equipment stress.
Standard limiting voltage THD to 5% and current THD based on short-circuit ratio at PCC.
Power factor equals real power (kW) divided by apparent power (kVA). A value of 1.0 is ideal; values below 0.9 typically require correction.
THD measures harmonic frequency content relative to the fundamental. IEEE 519 recommends voltage THD below 5% for most systems.
Inductive loads like motors and transformers cause lagging reactive power. Non-linear loads such as VFDs and SMPS create harmonic distortion.