3kV / 7kV Current Transformers (1-Core / 2-Core & Single-Ratio / Dual-Ratio Options)

Medium-Voltage Current Transformers (3~7.2 kV)

CR-3(6)S-T SERIES

About the Product

Insulated with Araldite® epoxy resin and intended for the main panel or the motor control panel of a 3.6 or 7.2 kV power system, each of these current transformers for indoor usage has a busbar terminal and is designed to be used in conjunction with measuring or monitoring instruments, or with protective relays.

The two-core model CR-6S-80T is available with a primary current rating of 500~3000A. When offered with a rated primary current of 800A or above, this model has an added tap in the secondary winding and can be used as a dual-ratio CT.

These current transformers are moisture resistant and mechanically robust, while providing excellent electrical performance.

Specifications

  • Standards: IEC or IEEE*
  • Indoor application; epoxy-cast type
  • Insulated with Araldite® epoxy resin
  • Single-Core / Two-Core
  • Single-Ratio / Dual-Ratio
  • Frequency: 50/60 Hz
  • Burden Rating: ≦ 3.6 kV (Model: CR-3S-60T/90T) or ≦ 7.2 kV (Model: CR-6S-80T)

Selection Table



 
* Other standards and specifications are available.

** When offered with a rated primary current of 800A or above, this model has an added tap in the secondary winding and can be used as a dual-ratio CT.
 

Available Models

Series: CR-3(6)S-T Series
Models: CR-3S-60T/90T (CR-3S-60T, CR-3S-90T), CR-6S-80T

 
 

Downloadables

3kV / 7kV Current Transformers (CR-3S-60T/90T, CR-6S-80T)

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.