Product Overview

Active power filter (HRDQ-APF) is in contrast to passive power filter. Active power filters counteract the harmonics contained in the bus by actively emitting reverse harmonics. Passive means that the harmonics contained in the busbar are absorbed by the capacitor.

The working principle of the active power filter HRDQ-APF is based on "cancellation compensation". In a three-phase power system, to eliminate harmonic currents, the active power filter collects the current on the grid side, calculates it and emits the same harmonics in the opposite direction, thus eliminating harmonics. Based on the same working principle, active power filters can correct the power factor and generate three-phase sinusoidal current waves to meet the load requirements.

Product features

It can simultaneously filter out odd harmonics within the 2nd to 50th order

The filtering capacity can reach over 97%

The complete compensation time for step changes in harmonics is less than 20ms

One machine with multiple uses, mainly for harmonic control, with optional reactive power compensation and three-phase unbalance

The product structure includes embedded, wall-mounted and cabinet types

The amplitude of each harmonic can be set separately

It is equipped with more than twenty types of protection, including overcurrent, overvoltage, undervoltage, overheating and short circuit

It features RS485 communication and Modbus protocol

Domain screening vector compensation method with adaptive ability

It can be switched between automatic and manual modes

Rated capacity: 50A, 75A, 100A, 150A, 200A