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

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.

Cooling Systems for Static Var Compensators: Air, Liquid, and Derating

Cooling systems for static var compensators remove valve and converter heat. Compare air vs liquid loops for SVC and SVG, then size ambient and derating.

Score Automatic Power Factor Controller Merits and Demerits Before RFQ

Score Automatic Power Factor Controller Merits and Demerits Before RFQ

Use an automatic power factor controller merits demerits scorecard for plant fit, failure-mode risks, and RFQ checks before selecting a stepped APFC panel.