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
Selection Table
* Please refer to “Drawings and Dimensions.”
Note: Other specifications available upon request.
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.
- Download Documents
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CIC Company Profile
Learn about our company: history, strengths, products, global locations, and our Advanced Electricity Lab.
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【Product Brochure】52 kV & 72 kV Outdoor Current Transformers (Model: AWF-52 & AWF-72)
Color brochure with technical specifications, product dimensions, and other information.
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CT & PT Selection Guide: How to Choose a Current Transformer or Potential Transformer
How to select, based on application and power system attributes, the primary and secondary currents, burden, accuracy, rated frequency, type (indoor vs. outdoor), insulation material, etc.
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