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STANDALONE PRODUCT
HFCT SENSOR

HFCT Sensor

High Frequency Current Transformer

The HFCT Sensor (High Frequency Current Transformer) provides high-sensitivity partial discharge detection and can effectively measure the high-frequency pulse currents generated by Partial Discharge (PD) in high-voltage equipment. Its clamp-on structure installs quickly on grounding conductors — suitable for on-site inspections, long-term monitoring, and 24/7 Online Partial Discharge Monitoring.

Inner Diameter
> 40 mm
Form Factor
Clamp-on / live install
Response
Nanosecond-level
Frequency
Wide range
FEATURES

HFCT SENSOR Features

  • 01

    High-sensitivity partial discharge pulse current detection

    The HFCT Sensor (High Frequency Current Transformer) provides high-sensitivity partial discharge detection and can effectively measure high-frequency pulse current signals generated by Partial Discharge (PD) in high-voltage equipment.

  • 02

    Clamp-on design for fast installation on grounding conductors

    This product uses a clamp-on structure and can be quickly installed on high-voltage equipment grounding conductors without major changes to the existing equipment configuration. It is suitable for on-site inspections, long-term monitoring, and 24/7 Online Partial Discharge Monitoring.

  • 03

    Wide frequency range for better partial discharge identification

    The HFCT Sensor has a wide operating frequency range, allowing it to capture PD waveform characteristics and high-frequency signal changes more completely. This helps improve PD Detection accuracy and strengthens identification of PD types, insulation abnormality analysis, and equipment health diagnostics.

  • 04

    Large aperture design for various high-voltage equipment

    The sensor inner diameter is greater than 40 mm, making it suitable for grounding conductors on various high-voltage equipment.

  • 05

    Nanosecond-level high-speed pulse response

    The HFCT Sensor provides nanosecond-level response to partial discharge pulses, allowing real-time capture of fast-changing PD pulse signals and improving the timeliness and reliability of the partial discharge monitoring system.

APPLICATIONS

Suitable for grounding conductors on various high-voltage equipment

  • 01 Transformers
  • 02 Switchgear
  • 03 GIS (Gas Insulated Switchgear)
  • 04 Power cables
  • 05 Grounding conductors for transmission and distribution systems

Widely used in power system predictive maintenance, high-voltage equipment monitoring, and online partial discharge diagnostics.

CONTACT

Contact us

Tell us your equipment type, voltage class and measurement cadence — we will respond within 24 hours.