HFCT clamp Ø 39-140 mm

HFCT clamp|Ø 39-140 mm

HFCT clamp
Ø 39-140 mm

high performance inductive PD sensors:

Clamp High Frequency Current Transformer Ø 39 - 140mm

TECHIMP’s Clamp High Frequency Current Transformer are inductive sensors for partial discharge measurements. It is suitable for on/off line PD tests on many electrical systems such as cables, transformers, rotating machine, etc...

The main advantage of a Clamp HFCT is that it can be clamped directly on the ground connection of the system to be tested without deenergizing it.

  • Gis
  • HV Cables
  • MV Cables
  • MV Switchgears
  • Power Transformer


  • Maintenance free
  • High sensitivity and reliability
  • Robust and easy to use
  • Safety


A coaxial TNC connector is available to connect the Clamp HFCT to the PD acquisition unit through a suitable 50Ω coaxial cable. The arrow indicates the direction of the output voltage (Vout) in comparison with the direction of the input current (Iin): when the sensor is installed with the arrow directed to ground, the detected voltage signal (Vout) has the same phase as the input current (Iin). 

More info? The easiest way to contact us is to email us by filling out this Form, or directly by sales@altanova-group.com