Air Core Reactor
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Air Core Reactor

Harmonic filtering
Linear impedance
Neutral grounding
Fault current limiting
Environmentally friendly
Reactive power compensation
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Product Introduction

Air Core Reactor

 

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Air Core Reactors are inductive devices designed to provide impedance in electrical circuits without using a magnetic core. Unlike iron-core reactors, which rely on ferromagnetic materials to enhance inductance, air-core reactors utilize non-magnetic materials (e.g., aluminum or copper windings) and rely solely on the geometry of their coils to generate inductance.

Key Features:

Dry-Type Air-Core Design:

LTEC air-core reactors utilize a dry-type air-core design, providing higher grid stability and power quality while eliminating the environmental risks associated with traditional oil-filled equipment.

Precision Winding Technology:

Using high-grade aluminum (or optional copper) conductors and precise winding technology, insulated with high-temperature polyester film, to achieve excellent conductivity.

Maintenance-Free & Eco-Friendly:

By replacing traditional oil-filled designs, our air-core reactors avoid soil contamination risks, reduce operating costs, and are more environmentally friendly and compliant.

Superior Mechanical Strength:

Air-core reactors feature a mechanically rigid encapsulated winding design, ensuring superior short-circuit resistance and seismic durability.

Compact & Flexible Installation:

Vertical, horizontal, or stacked designs, with a small footprint, facilitate optimal space utilization in your power plant and extend equipment lifespan.

 

 
Applications of Air Core Reactors
 
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Power Systems
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Renewable Energy
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Industrial
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High-Frequency Circuits

Power Systems: Harmonic filtering, reactive power compensation, fault current limiting.

Renewable Energy: Solar/wind farms for grid stability.

Industrial: Motor starting, arc suppression, and UPS systems.

High-Frequency Circuits: RF and telecom applications.

 

 
Air Core Reactors Technical Specifications
 

Parameter Category

Technical Specifications

Remarks

Electrical Parameters

- Rated Voltage

Up to 35kV

Select based on the system voltage level

- Rated Current

10A~5000A (customizable)

Must match the actual load current

- Inductance (L)

0.1mH~100mH (±5% tolerance)

Constant in linear range, no saturation

- Frequency Range

50/60Hz (power) or 1kHz~1MHz (HF)

Power frequency for grids, high frequency for RF/telecom

- Temperature Rise

≤65K (per IEC 60076-6)

Tested at 40°C ambient temperature

Mechanical Parameters

- Winding Material

Aluminum/Copper (epoxy encapsulated)

Aluminum for lightweight, copper for better conductivity

- Cooling Method

Natural (AN) / Forced Air (AF)

High-capacity models require forced cooling

- Protection Class

IP00~IP54 (indoor/outdoor)

Outdoor models need dust/water resistance

- Mounting Orientation

Vertical/Horizontal

Avoid mechanical resonance

Performance Metrics

- Overload Capacity

2~3× rated current (1s duration)

Withstands short-circuit current surges

- Linearity

>99% (within rated current)

Minimal inductance deviation

- Losses

<0.3% of rated capacity (no core loss)

Significantly lower than iron-core reactors

Standards & Certifications

IEC 60289 / IEEE C57.16

International Electrotechnical Commission & IEEE standards

Environmental Conditions

-25°C~+55°C (outdoor: -40°C~+70°C)

 

 

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Why Choose LTEC's Air Core Reactors?
 

LTEC – Powering Your Systems with Innovation!

Competitive Pricing & Support

Cost-effective manufacturing and dedicated technical service provide exceptional value.

Wide Application Coverage

Ideal for power grids, renewables, industrial systems, and more, with proven performance in global projects.

Enhanced Safety & Reliability

Robust insulation and optimized thermal management prevent overheating and ensure safe operation.

Advanced Technology & Expertise

With decades of experience in reactor design, LTEC ensures high-performance, reliable air core reactors tailored to industry needs.

Superior Quality & Durability

Precision engineering and rigorous testing guarantee long-term stability, even in harsh operating conditions.

Customized Solutions

We offer flexible designs (inductance, size, cooling methods) to meet specific project requirements.

Energy Efficiency & Low Losses

No iron core eliminates saturation and reduces eddy current losses, improving system efficiency.

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