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Read practical engineering insights on harmonics, reactive power, voltage stability, equipment selection and commissioning for industrial and utility projects.

Where the Advantages of Static Var Compensator Show Up

Where the Advantages of Static Var Compensator Show Up

See the advantages of static var compensator that still matter on a plant bus, and how those jobs map to a converter SVG instead of a thyristor SVC.

Active Harmonic Filter vs Passive on a Changing Plant Bus

Active Harmonic Filter vs Passive on a Changing Plant Bus

Choose an active harmonic filter vs passive by the load. A fixed tune fits a steady spectrum. Active injection fits changing drives, resonance, and hybrid use.

What an Active Harmonic Filter Diagram Shows on the Bus

What an Active Harmonic Filter Diagram Shows on the Bus

An active harmonic filter diagram maps the CT, controller, PWM inverter, DC bus, and coupling reactor that inject a canceling current beside a nonlinear load.

How to Specify an Active Harmonic Filter from Measured Current

How to Specify an Active Harmonic Filter from Measured Current

Specify an active harmonic filter from measured harmonic current, CT placement, response, and site conditions rather than from transformer kVA alone.

Three-Phase Pole-Mounted Capacitor Banks on Distribution Feeders

Three-Phase Pole-Mounted Capacitor Banks on Distribution Feeders

Learn how a 3 phase pole mounted capacitor bank is built on the pole, placed on feeders, switched and protected, and when pole-mount beats a yard bank.

Why Do We Use Capacitor Bank in Substation: Voltage, PF, Losses, and Capacity

Why Do We Use Capacitor Bank in Substation: Voltage, PF, Losses, and Capacity

Substations use shunt capacitor banks for local reactive supply, bus voltage support, lower I2R losses, and freed transformer capacity—see MV/HV fit.