CT’s and PTs

We at TRANSPOWER have an extensive record as a trusted manufacturer of wide range of Transformers (which includes Oil filled, VPI and Cast Resin), reactors/chokes, CTs, PTs & coils to cater different industries as per the applications & specifications of customers. As we are committed to customer satisfaction by providing wide range of power solutions, we had great interaction with different field customers with their challenging requirements. Our organisation core competency got evolved over the years to benchmark ourselves against global leaders by utilizing strategic combination of our last 30 years’ experience, design capabilities, innovative ideas. Further this helped us to have better access to most advanced magnetic & insulating materials to provide our customers quality products with optimum cost. Presently we design, develop, produce and deliver wide range of high quality Magnetics as per international standards.

Transpower India Electronics is having well established infrastructure to produce wide range of CT’s, PT’s for different applications as per IEC, and IS standards.

Low Voltage CT’s and PT’s

  • Metering CT’s
  • Protection CT’s
  • Utilities CT’
  • Core Balance CT’s

Low Voltage CT’s:

  • wound primary type (WPL)
  • Window Type (Round, Rectangle)
  • Bar Primary type (BPL)
  • Tape Wound
  • Cast Resin
  • ABS casing


  • Applicable standard IS 2705 / IEC 61869-2
  • Highest System Voltage: 720V
  • Frequency: 50Hz, 60Hz
  • Basic Insulation level (IL): 0.72 / 4KV
  • Rated Primary current : 0.5 A to 5000 A
  • Rated Secondary current: 0.1 A to 5A
  • Class of Accuracy: 0.2, 0.2S, 0.5, 0.5S, 1, 3, 5
  • 5P/10P, PS for protection purpose
  • Insulation class: E, B, F
  • short time thermal current (Ith): 60 x In
  • Dynamic current (Idyn): 2.5 x Ith
  • VA burden: 0.01 to 100VA
  • Single, Dual Secondary

Salient Features:

  • Cost effective
  • High Dielectric strength
  • Can withstand mechanical stresses of fault conditions
  • Flame retardant option
  • CE mark option
  • Suitable mounting arrangement
  • compact design
  • High accuracy
  • Tailor made (as per customer requirement)
  • Continuous operation with 120% rated current

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