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HFCT Sensor

High frequency current transducer

Sensor photo

bandwidth10MHz-150MHz
diameter41± 1mm
Transfer impedance3-8Ω
attestationTAF CNAS TUV
StandardsIEC 62478

Operating Principle

When partial discharge occurs, it is equivalent to the breakdown of local impurity capacitors, resulting in the neutralization of charges and the generation of high-frequency pulse currents. Pulse current flows through the equipment grounding wire and generates a magnetic field that varies perpendicular to the direction of current propagation. By installing HFCT sensors on the grounding wires of power equipment, partial discharge signals in power equipment can be detected and judged by converting the changing magnetic field generated by partial discharge into electrical signals through coils.

Product Features

*The working frequency range is 10MHz-150MHz, with high sensitivity and easier capture of partial discharge signals.
*The minimum operating frequency is 10MHz, which can reduce the interference of environmental noise and improve sensitivity.
*Can be installed on the equipment grounding wire, easy to install, and can monitor the equipment status online.

Installation position

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