20kV Two-Core Current Transformer (for Polluted Regions)

Medium-Voltage Current Transformers (10~25 kV)

EWF-20DK

This two-core current transformer is designed for a 20~24 kV power system and is intended to be used in conjunction with measuring or monitoring instruments, and with protective relays. Insulated with Araldite® epoxy, this indoor-use current transformer is designed to have greater creepage, allowing the current transformer to be provided to regions with harsh environmental factors such as high humidity, salty air, dust, etc.

Product Features

  • Cast in Araldite® epoxy resin
  • For indoor application in polluted regions
  • Standards: IEC or IEEE
  • System Voltage: ≦ 24kV
  • Frequency: 50/60 Hz
  • AC/BIL: 50/125 kV
  • 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

Creepage

Core 1

Core 2

EWF-20DK

2×15 ~
2x300A

5A or 1A

5A or 1A

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

25kA/1S

23

2

435 mm

 
 

Downloadables

20kV Two-Core Current Transformer (Model EWF-20DK)

Easy-to-print document, containing product description, specifications, and a selection table.

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.