Zero-line Filter Wholesale Price - Power Quality - Jiamusi Three Harmonic Filter

The ZJKF-NPF neutral current filter produced by Zhejiang Kefile is a product specifically developed for various applications such as shopping malls, LED display screens, LED lighting, engineering projects, data centers, battery capacitance testing equipment, switch power supply aging, virtual mines, and more.
This physical quantity is typically seen on the neutral line. I can assure you that the level of the 3rd harmonic is directly proportional to the enterprise's safety hazard index. This is because the neutral line current is composed of: 1. Unbalanced current, 2. 3rd harmonic current. The higher the 3rd harmonic, the higher the neutral line current, and consequently, the greater the fire safety hazard for the enterprise!

Product Specifications: Harmonic Suppression; Voltage Level: 380V; Current: 800A; Frequency: 50Hz; Protection Grade: IP20; Input/Output: Rear Input Rear Output; Measurement Accuracy: 0.5S; Power Supply Voltage: 85-270V; Availability: Nationally; Application: Full Power Type; Harmonic Compensation Times: 0-20 Times; Compensation Response Time: 10ms; Wiring Method: Three-Phase Three-Wire/Three-Phase Four-Wire; Installation Method: Wall-Mounted/Cabinet/Drawer; Voltage: 380V; Harmonics: 1000A; Power: 400A; Noise: 60dB

This product may not be well-known to many, so let me briefly introduce it. It differs from passive/inactive filters in terms of its purpose, working principle, and the solutions it offers to customer issues. With the advancement of society and the enhancement of living standards, an increasing number of single-phase devices are being used across various industries. While these devices bring convenience, they also introduce a factor—third harmonic.

Product Overview
The ZJKF-NPF neutral wire current filter produced by Zhejiang Kefiller is a product specifically developed for various applications such as shopping malls, LED displays, LED lighting, engineering projects, data centers, battery capacitance testing equipment, switch power supply aging, virtual mines, and more.
In traditional power systems, electrical equipment with linear impedance variation characteristics does not interfere with the standard sine wave power supply at 50Hz. However, with the rapid development of modern power electronics technology, electrical equipment with nonlinear impedance characteristics (also known as nonlinear loads) is increasingly used. These nonlinear loads can cause distortion in the power system's supply frequency and waveform, from which different frequency sine waves can be extracted. This portion of extracted AC sine waves that are not 50Hz is collectively referred to as harmonics. Among them, the harmonic with a frequency of 50Hz tripled, i.e., 150Hz, is called the 3rd harmonic; the harmonic with a frequency of 50Hz quintupled, i.e., 250Hz, is called the 5th harmonic; and the harmonic with a frequency of 50Hz heptupled, i.e., 350Hz, is called the 7th harmonic.
Performance Features
Modular design for compactness and lightweight, with easy capacity expansion and selection, as well as convenient handling and installation.
② The modular housing is made of stainless steel with anti-corrosion, rust-proof, and anti-magnetic interference properties, suitable for various installation sites.
③ The governing device features operational status LED indicators, automatic temperature control for cooling fans, and backup bypass switch functionality.
④ Simply connect to the ABC phase lines, capable of synchronously receiving various protections on the load phase lines; offers strong safety and high reliability.
⑤ The governing device features a highly automated performance with immediate connection, use, and effect, requiring no additional control systems or complex manual adjustments.
⑥ Not only can it significantly reduce the 3rd harmonic current on the neutral line, but it can also simultaneously decrease the odd harmonics at 9th and 15th multiples, which are the three times frequency harmonics that accumulate on the neutral line.
Under the operating condition where the three-phase current is relatively balanced, the elimination rate of the 3rd harmonic current on the neutral line reaches over 85%.