Active Harmonic Filter (AHF)

Overview

With the wide application and development of power electric technologies, there are more and more nonlinear loads in the power system, such as rectifiers, frequency converter, UPS, household applications, LED lights, computer and other equipment. The nonlinear loads will generate harmonics currents and inject them into the power grid, causing distortion of the voltage waveform, thereby causing harmonic “pollution” of the power grid. 

Lafaelt active harmonic power (AHF) is a good way to solve the harmonic problem with IGBT. Our active power filter offters a selectable priority function of harmonic filtering, reactive power compensation, and load balancing.

Principle

Treatment Effect

Application

Fluorescent lamps, computers, UPS, elevators, inverter air conditioners, etc., which are widely used in commercial buildings and hospitals, not only seriously pollute the grid, but also threaten the safety of power distribution systems.

Steel material industries, black rolling, such as stainless steel rolling, rolled plate of carbon steel, wire rolling. Nonferrous electrolysis industry: electrolytic aluminum, copper, cadmium and cesium. Medium and cesium. Medium frequency induction heating furnace: metal casting, hot rolling in steel mills.

Chemical manufacturing industry. Plating: chromium plating, aluminum plating, zinc plating in lamp plating factories, and copper plating in electronic circuit factories. Paper making: process speed control, such as pulp mills. Petrochemical: a large number of frequency converters are used for speed regulation.

AC/DC arc equipment. AC/DC electric arc furnace. AC/DC are welding machine: automobile manufacturing, shipbuilding, heavy machinery manufacturing. DC traction equipment. Other high-capacity industrial DC power supplies.

Specialized power supply equipment. Large capacity uninterrupted power supply, communication power and backup power supply. High (low) frequency all solid-state power supply, etc.

Technical Parameters

AcFee Series Common Specification Selection Table

LAF Series Common Model Active Power Filter

LAF Series Enhanced Model Active Power Filter

Installation Dimensions

400V 300A AcFee Active Power Filter Cabinet