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Air Core Reactor

The Air Core Reactor is an advanced solution for harmonic filtering and voltage stabilization, designed to provide reliable, oil-free performance in both high and low voltage networks. Its innovative air-based core design offers a lightweight and compact alternative to traditional reactors, making it an ideal choice for applications where space and weight are critical factors. The Air Core Reactor efficiently controls reactive power and mitigates harmonic distortion, ensuring smooth and stable operation in dynamic power systems. With its robust, maintenance-free construction, it delivers exceptional power quality and system reliability, making it a top choice for industrial, commercial, and renewable energy applications.

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Product Components

Winding Coil
Constructed with multi-layer conductors, forming the primary inductive element.
Typically designed with disc-type or layer-type structures to optimize magnetic field distribution.
Conductor material is usually copper or aluminum, selected based on current capacity and thermal dissipation requirements.

Support Structure
Maintains the geometric stability of the coil.
Commonly made of non-magnetic materials such as epoxy resin, fiberglass-reinforced plastic (FRP), or aluminum alloy.
Ensures mechanical stability and prevents coil deformation or vibration.

Insulation Materials
Interlayer Insulation: Uses polyester film, Nomex paper, or epoxy resin coating to prevent turn-to-turn short circuits.
Overall Insulation: May incorporate impregnation or encapsulation techniques to enhance dielectric strength.

Connection Terminals
Conductive components that connect the winding to external circuits.
Require high conductivity (e.g., copper) and insulation protection to prevent electrical discharge.

Cooling System
Natural Cooling: Relies on air convection, commonly used in medium- and low-power reactors.
Forced Air Cooling: High-power reactors may include fans or dedicated cooling channels to enhance heat dissipation.

Shielding Structure (Optional)
Electromagnetic shielding layers or grading rings are used to suppress electromagnetic interference (EMI) and equalize the electric field distribution, commonly found in high-voltage applications.

Enclosure / Protective Cover (Optional)
Provides protection against environmental factors such as dust and humidity.
May also integrate shielding functions for electromagnetic compatibility (EMC).

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Key Differences

Feature	Filter Reactor	Air Core Reactor
Design Objective	Precisely Tune Specific Harmonic Frequencies (e.g., 5th, 7th Harmonics)	Wideband Harmonic Suppression/Reactive Power Compensation/Current Limiting (No Core Saturation)
Inductance Linearity	High (Constant across Full Current Range)	Extremely High (No Core Saturation, Inductance Remains Almost Constant with Current)
Loss Requirements	Very Low (Reduce Losses in Filtering Circuit)	Relatively Low (No Core Loss, but Copper Loss Increases with Current, Requires Heat Dissipation Optimization)
Frequency Response	Narrowband (Targeting Single Harmonic)	Wideband (Inductance Remains Stable, Adapts to Multi-Frequency Harmonic Environment)
Typical Applications	Reactive Power Compensation Cabinets, HVDC Converter Stations, Active Power Filters (APF)	Wind Power Converters, Static Var Generators (SVG), Railway Traction Power Supply

Product Applications

Economy is more affordable

Product Advantages

High Efficiency

Advanced air core design minimizes energy losses.

Low Maintenance

Oil-free construction ensures a maintenance-free, durable operation.

Enhanced Voltage Stability

Effectively filters harmonics and maintains consistent voltage levels for reliable power distribution.

WellDone High And Low Voltage Reactor Design Drawing

FAQ

What range of High And Low Voltage Reactor products do you offer and which standards do they meet?

We deliver an extensive portfolio of High And Low Voltage Reactor solutions, including Series Reactors, Air Core Reactors, Filter Reactors, Line Reactors, Output Reactors, Dry Type Iron Core High Voltage Series Reactors, and Dry Type Iron Core Low Voltage Series Reactors. Backed by nearly two decades of industry expertise, our engineering team rigorously designs each reactor to conform with key international guidelines—encompassing ANSI, IEEE, DOE, CSA, AS, AZS, GOST, IEC, among others. Many of our products also carry UL, cUL, and CSA certifications, ensuring they meet stringent global safety and performance benchmarks.
How do you ensure the quality and reliability of your High And Low Voltage Reactors?

Our reactors are manufactured under an all-encompassing quality assurance system that scrutinizes every phase—from the selection of premium materials to exhaustive final testing. Each reactor is supported by a minimum 24-month warranty, reflecting our unwavering commitment to safety, consistency, and long-term performance. This meticulous quality control process has solidified our reputation among international clients and top industry players.
What are your production lead times, customization options, and global market reach?

For our standard reactor models, production typically spans 10 to 25 days. In addition, we provide flexible OEM/ODM services to create tailor-made solutions that precisely match project requirements. Our packaging strategies are adaptable to individual client needs, ensuring safe and efficient delivery. With an expansive global network, our reactors are successfully exported to markets across North America, Europe, South America, Australia, Asia, and Africa. For more detailed information or personalized support, please reach out via email or WhatsApp.