72.5 kV Outdoor Current Transformer | Elevate Power Distribution: Explore Premium Voltage Transformers | CIC

72.5 kV Outdoor Current Transformer / 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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High-Voltage (HV) Outdoor Current Transformer, 52 kV & 72.5 kV | 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 High-Voltage (HV) Outdoor Current Transformer, 52 kV & 72.5 kV, 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.

72.5 kV Outdoor Current Transformer
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High-Voltage (HV) Outdoor Current Transformer, 52 kV & 72.5 kV

AWF-52, AWF-72

These high-voltage current transformers (52 kV or 72.5 kV), designed for outdoor use, are available in single-core and two-core varieties. Featuring extended creepage distance and insulated with UV-resistant cycloaliphatic epoxy resin, these current transformers can withstand solar ultraviolet radiation and IEC-defined pollution level III (“Heavy”). They’re especially ideal for regions with salt fog, high temperature, and high humidity.


About the Product

High-voltage outdoor-type current transformers AWF-52 and AWF-72 are available in single-core and two-core varieties. These instrument transformers can be offered according to client-specified standards (e.g. IEC, IEEE, etc.) and specifications, such as accuracy, burden, and others.

Cast in Araldite® UV-resistant cycloaliphatic epoxy resin, these current transformers are furthermore distinguished by their extended creepage distance. These and other outstanding characteristics enable the products to withstand solar ultraviolet radiation and IEC-defined pollution level III (“Heavy”). In fact, these high-voltage outdoor-type current transformers maintain their excellent electrical properties even under long-term exposure to salt fog, high temperature, and high humidity.


Technical Data  (AWF-72)

  • Standard: IEC (other standards by request)
  • Voltage Rating: 72.5 kV
  • Rated Frequency: 50 or 60 Hz
  • Power-Frequency Withstand Voltage: 140 kV/1 min
  • Lightning Impulse Voltage (1.2/50 μs): 325 kV
  • Wet Flashover Voltage: 180 kV
  • Dry Flashover Voltage: 225 kV
  • Creepage Distance: >1890 mm


Common Features  (AWF-52 & AWF-72)

  • Durable construction and distinctive design.
  • Dry type for easy maintenance.
  • High insulation for long service life.
  • Designed for tough outdoor conditions.
  • Cover for the primary.
  • Easily hung.
  • Designed for IEC-defined pollution level III.


Electrical Specifications

Outdoor High-Voltage Current Transformers - Electrical Specifications


Selection Table

Outdoor High-Voltage Current Transformers - Selection Table

* Please refer to “Drawings and Dimensions.”

Note: Other specifications available upon request.


Drawings and Dimensions

Outdoor High-Voltage Current Transformers - Drawings and Dimensions

Note: Besides differences in height and creepage distance, 52 kV and 72 kV models share the same dimensions for the product base and other accessories.


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