24 kV Two-Core Current Transformer (“U-Shaped Top” Design) – Model: EWF-20DI | Elevate Power Distribution: Explore Premium Voltage Transformers | CIC

24 kV Two-Core Current Transformer (“U-Shaped Top” Design) – Model: EWF-20DI / 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.

Featured Products

24 kV Two-Core Current Transformer (“U-Shaped Top” Design) | Enhance Safety and Performance with Superior Epoxy Insulators | CIC

Based in Taiwan since 1974, CHALLENGE INDUSTRIAL CO., LTD. specializes in manufacturing high-quality electrical products, including 24 kV Two-Core Current Transformer (“U-Shaped Top” Design), 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 50 years of experiences, CIC ensures each customer's demands are met.


24 kV Two-Core Current Transformer (“U-Shaped Top” Design)

EWF-20DI

2-core epoxy-cast current transformer for a 24 kV (max.) power system. For use with measuring or monitoring instruments, and protective relays. “U-shaped top” design for safety and for a shorter distance between two current transformers installed side-by-side, thus reducing the required width of the switchgear panel.

About the Product

This two-core current transformer is designed for a 20~24 kV power system and to be used in conjunction with measuring or monitoring instruments, along with protective relays. Insulated with Araldite® epoxy, this indoor-use current transformer is designed with a “U-shaped top”, which creates distance between the primary terminals and other equipment. This design increases electrical safety and shortens the necessary distance between two current transformers that are installed side-by-side, thus reducing the required width of the switchgear panel.

Product Features

  • For indoor application
  • Cast in Araldite® epoxy resin
  • Standards: IEC or IEEE
  • System Voltage: ≦ 24kV
  • Frequency: 50 or 60 Hz
  • AC/BIL: 50/125 kV
  • Benefits: Increased electrical safety; reducing the width of the switchgear panel
  • Additional specification or customization may be requested to comply with various electrical standards or special requirements.

Selection Table

 Model

Primary Current

Secondary Current

Burden / Accuracy

Ith
(Max.)
Approx. Weight Num.
of
Cores

Core 1

Core 2

EWF-20DI

2x15~2x315A
700~1250A

5A or 1A

5A or 1A

30VA/5P20 + 30(15)VA/1.0(0.2)

25kA/3S

25 kg

2

Download Documents

Related Products
  • 24 kV Two-Core Current Transformer (for Polluted Regions)
    24 kV Two-Core Current Transformer (for Polluted Regions)
    EWF-20DK

    2-core current transformer for a 20~24kV power system. Used in conjunction with measuring or monitoring instruments, and with protective relays. Epoxy cast. Designed to have greater creepage, it is appropriate for polluted regions.


  • 24 kV Epoxy-Cast Current Transformers for Indoor Application
    24 kV Epoxy-Cast Current Transformers for Indoor Application
    EWF-20DA, EWF-20DB, EWF-20DD, EWF-20DE, EWF-20DS

    For use in conjunction with energy meters or protective relays. Available in single-core, 2-core, and 3-core models. Insulated with Araldite® epoxy resin. Custom-made to meet various requirements.


  • Overvoltage Protector for Current-Transformer Protection
    Overvoltage Protector for Current-Transformer Protection
    CCTP-03

    When a power system is in operation, it is imperative that the secondary of the current transformer(s) should not have an open circuit. When an open circuit occurs, an extremely high transient voltage will be induced, which can in turn damage the current transformers and the instruments at the secondary, or even posing a threat to personal safety. This CT secondary overvoltage protector offers protection from such accidental damage caused by secondary transient voltage.