China CKSG low voltage Reactor Manufacturer, Factories

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China CKSG low voltage Reactor Manufacturer, Factories

Low-voltage reactors are inductive devices used in low-voltage power distribution systems. Their main function is to be connected in series with low-voltage capacitors to suppress harmonic amplification and limit inrush current, thereby improving voltage quality and protecting the capacitors. Low-voltage reactors are available in series and parallel configurations and are commonly used in reactive power compensation devices.

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Product Description

Main Features

Structure and Materials: Typically employs a dry-core structure. The core is made of high-quality, low-loss silicon steel sheets, and the coil is wound with enameled flat wire using F- or H-grade insulation materials.

Manufacturing Process: Vacuum impregnation and heat curing processes ensure a strong bond between the coil and core, reducing noise, improving heat resistance, and providing excellent heat dissipation.

Technical Highlights:

1. Fasteners are made of non-magnetic materials, improving the quality factor.

2. Some products have over-temperature protection, such as protection at 170°C to 180°C.

3. The entire structure utilizes vacuum overpressure injected insulation material, enhancing reliability.

Main Functions

Suppressing Harmonic Amplification: When a system has a large number of nonlinear loads (such as frequency converters and rectifiers), harmonics are generated. Capacitors, transformers, and inductive loads form resonant circuits, which can amplify harmonics. Connecting a reactor in series with the capacitor circuit can prevent this resonance and effectively suppress harmonic pollution.

Limiting Inrush Current: Capacitor banks generate significant inrush current when connected and disconnected. Low-voltage series reactors can limit this inrush current, protecting the safe operation of the capacitor bank.

Improving Voltage Waveform and Power Factor: By suppressing harmonics and compensating for reactive power, reactors can stabilize voltage, improve the system's power factor, and enhance power quality.

Application Scenarios

Widely used in low-voltage power distribution systems in industries such as power systems, electrified railways, metallurgy, chemical industry, and petroleum, as well as in occasions where harmonic suppression and power factor improvement are required.

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Frequently Asked Questions

What materials are used in the reactor core and coils?

The core is made from high-quality, low-loss silicon steel sheets, while the coils are wound with enameled flat wire using F- or H-grade insulation materials to ensure durability and efficiency.

How does the reactor reduce operational noise?

Through a vacuum impregnation and heat curing process, the bond between the coil and the core is strengthened, which significantly minimizes vibration and noise during operation.

What is the primary benefit of connecting a reactor in series with a capacitor?

It prevents harmonic resonance by shifting the resonant frequency of the circuit, thereby suppressing harmonic amplification and protecting the system from harmonic pollution.

Does this product include safety features for overheating?

Yes, some models are equipped with over-temperature protection that triggers at specific thresholds, typically between 170°C and 180°C, to ensure safe operation.

In which industries are these reactors commonly applied?

They are widely utilized in power systems, electrified railways, metallurgy, chemical processing, and petroleum industries for power factor improvement and harmonic control.

How does the reactor improve power quality?

By limiting inrush currents during capacitor switching and suppressing harmonics, the reactor stabilizes the voltage waveform and improves the overall system power factor.