Electrical Reactors and Motor-Starting Solutions | Elevate Power Distribution: Explore Premium Voltage Transformers | CIC

Series Reactors, Detuned Reactors & Motor-Starting Solutions | Serving a diverse client base around the world, CIC is a leading manufacturer and supplier of current transformers, potential transformers (voltage transformers), distribution transformers, epoxy insulators, electronic meters, and other electrical and electronic products.

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Electrical Reactors & Autotransformer Starter | Revolutionize Your Energy Systems with Advanced Distribution Transformers | CIC

Based in Taiwan since 1974, CHALLENGE INDUSTRIAL CO., LTD. specializes in manufacturing high-quality electrical products, including Electrical Reactors & Autotransformer Starter, current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With over 45 years of expertise and technology collaboration with Germany's MWB, CIC is ISO certified and offers products recognized for reliability in various industrial applications.

Challenge Industrial Co., Ltd. (CIC) stands at the forefront of electrical innovation, specializing in the manufacturing of current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With a legacy built on over 45 years of engineering excellence and leveraging advanced German technology, CIC commits to delivering high-quality, ISO-certified electrical solutions. Their comprehensive product range, paired with an ISO-certified approach and a TAF-accredited laboratory, ensures reliability and performance for a diverse global market. CIC is your go-to source for electrical components that power progress and efficiency.

CIC has been offering customers high-capacity power capacitors since 1974, both with advanced technology and 45 years of experiences, CIC ensures each customer's demands are met.

Electrical Reactors & Autotransformer Starter

Series Reactors, Detuned Reactors & Motor-Starting Solutions

Electrical Reactors and Motor-Starting Solutions
Electrical Reactors and Motor-Starting Solutions

Electrical reactors have been a cornerstone of CIC’s product lines since 1985. Leveraging decades of expertise in product design, development, and manufacturing, CIC proudly presents a versatile range of low-voltage and medium-voltage detuned reactors (series reactors), encompassing both iron-core and air-core variations.

CIC’s dry-type electrical reactors fall into two primary categories: some are insulated with Class-H materials, such as Nomex, while others utilize epoxy-resin insulation. Notably, except for the air-core models, the reactor cores are divided into sections to ensure linear inductance.

Since 2002, CIC has stood as a qualified and approved provider of air-core resin-insulated series reactors designed for use with 12/24 kV capacitor banks in electrical substations. The air-core construction reduces core loss and operational noise, contributing to a more efficient and quieter operation.

Additionally, CIC excels in providing reliable motor-starting solutions: MV motor-starting reactors and autotransformer starters, the latter of which also referred to as motor-starting compensators.

CIC’s commitment to customer satisfaction extends to offering customizable detuned reactors (series reactors), motor-starting reactors, and motor-starting autotransformers tailored to meet the unique specifications and preferences of our valued clients. Feel free to reach out for personalized consultation or to discuss your specific project requirements.


Explore our featured selections below for this category. Click any product to learn more.

For our full range or specific inquiries, please contact us directly.

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  • Air Core Reactors
    Air Core Reactors

    These MV air-core reactors are single-phase dry-type series reactors which are mainly used together with 12 kV or 24 kV capacitor banks in electrical substations of utility companies. The insulation shell of the product is molded in epoxy resin. To reduce core loss and noise, this type of self-cooling detuned reactor utilizes the air-core design and construction. Besides having excellent insulation and moisture resistance, these air-core reactors can withstand large short-circuit current, are easy to maintain, and offer great durability.


  • MV Dry-Type Motor-Starting Reactor / Motor-Starting Autotransformer (Compensator)
    MV Dry-Type Motor-Starting Reactor / Motor-Starting Autotransformer (Compensator)

    The Motor Starting Reactor or Motor Starting Autotransformer (Compensator) is economical and maintenance free. This medium-voltage dry-type motor starter can be made according to customers' specific requirements.


  • Medium-Voltage Series Reactors (Detuned Reactors)
    Medium-Voltage Series Reactors (Detuned Reactors)

    MV Dry-Type Series Reactors (detuned reactors) with ratings ranging from 3.6 kV to 24 kV have coils that are insulated with Class-H materials and then coated with epoxy resin. The three phases are insulated against each other by the air within the space between them. These electrical reactors are noted for their moisture resistance, excellent heat dissipation, low noise, easy maintenance, and product longevity.


  • Low-Voltage Series Reactors (Detuned Reactors)
    Low-Voltage Series Reactors (Detuned Reactors)
    XDTH Series

    Detuned reactors, connected in series, are necessary for circuits with high harmonic currents. These “series reactors,” usually part of a power factor correction (PFC) capacitor bank, help to reduce harmonics in currents, increase power efficiency, and prevent disasters caused by resonance.



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