Resonance in Power Systems & MV Capacitor Bank Design | Harmonics, Reactors & Filter Selection

In this in-depth lecture, we explore the critical phenomenon of resonance in electrical power systems, especially its relationship with harmonics caused by nonlinear loads. Learn how resonance leads to dangerously high voltages or currents, and how it can damage key components like capacitors and transformers.

We focus on the design and purchase of medium-voltage capacitor banks (11 kV / 22 kV), highlighting a vital but often overlooked aspect: the technical specifications of reactors inside these banks. You’ll understand why reactor specs cannot be copied from other systems, and how the reactors must be tuned according to the unique harmonic profile of each transformer.

✅ Key topics covered:

Series and parallel resonance

Fundamental vs harmonic frequencies (150 Hz, 250 Hz, etc.)

How resonance causes overvoltages and overcurrents

Role of series reactors: inrush current limiting & harmonic filtering

The formula for resonance frequency:
  F₍ᵣ₎ = 1 / (2π√LC)

How to use a power quality analyzer to measure harmonics

Why custom reactor design is essential for each transformer

⚠️ Avoid costly capacitor bank failures — learn how to properly analyze, specify, and purchase the right components with confidence.

🔧 This is a must-watch for:

Electrical engineers

Substation designers

Power quality analysts

Anyone involved in reactive power compensation systems

Видео Resonance in Power Systems & MV Capacitor Bank Design | Harmonics, Reactors & Filter Selection канала A. Hassanin Academy