400V 440V Active Harmonic Filter 25A To 100A Electrical Cabinet Filter

Key attributes

Principle of filtering out harmonic
APF/SVG acquires the current signal in real time through an external current transformer, and separates the harmonic part through the internal detection circuit, and generates a compensation current with the opposite phase of the harmonics in the system through the IGBT power converter to realize the function of filtering out harmonic.
The output compensation current of APF/SVG varies accurately according to the dynamic harmonics of the system, so there will be no compensation problem. In addition, APF/SVG has overload protection function. When the harmonic of the system is larger than the filter capacity, the device can automatically limit the output of 100% rated capacity without overload.
Principle of compensating for reactive power
According to the reactive power of the system, APF/SVG generates capacitive or inductive fundamental current through the IGBT power converter to achieve the purpose of dynamic reactive power compensation. The compensation target value can be set through the operation panel without overcompensation. The compensation is smooth and there is no inrush current impact on the load and the grid.
Principle of compensating for three-phase unbalance
The APF/SVG extracts the unbalanced component according to the system current, and the three phases emit a current of the same phase as the unbalanced component, and the unbalanced portion is compensated to zero, so that the three-phase unbalanced current can be corrected to the three-phase balanced current.

Active Harmonic Filter is a perfect comprehensive solution to power quality problems with power grid such as harmonic wave, reactive power, and three-phase load unbalance. Active Harmonic Filter is connected in parallel in power grid, to detect the harmonic wave in power grid in real time, generate the reverse-phase compensation current through the converter, and dynamically filter the harmonic wave in power grid. The operation of is unaffected by power grid structure and load type, and it will not produce harmonic oscillation with the system, thus perfectly realizing harmonic wave control of various loads. Active Filter can also realize dynamic reactive compensation, and control the capacitor switching, to improve the power factor of power grid. Meanwhile, Active Harmonic Filter has the function of controlling the three-phase load current unbalance, thus comprehensively solving various power quality problems with power grid.

Sichuan Jinhuili Electric Co., Ltd. is specialized in distribution automation, power quality, energy efficiency management of the main products and services; The products include high and low voltage power distribution equipment, uninterruptible UPS power supply, emergency power supply, DC power supply, complete sets of intelligent control equipment, solar photovoltaic power generation, energy storage management, operation and maintenance and other comprehensive automation.

The company is located in Chengdu, Sichuan Province, China, covers an area of more than 10,000 square meters, has a large number of outstanding management personnel, senior engineers and power professional and technical personnel, has been awarded by the government and departments "civilized private enterprise", advanced private enterprise, scientific and technological innovation enterprise, contract-respecting, trustworthy units and other honorary titles.

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