Sensors

High Frequency Current Transformer: HFCT 100/50 - Portable

The HFCT 100/50 is a small-sized, portable, split-core, high frequency current transformer for earth screen/earth strap connection and is suitable for on-line PD testing and monitoring of HV cables.

High Frequency Current Transformer: HFCT 140/100 - Portable

The HFCT 140/100 is a medium-size, portable, split-core, high frequency current transformer for earth screen/earth strap connection and/or connection around the insulated core of the cable (this is effective only after the point where the earth screen has been 'taken off').

High Frequency Current Transformer: HFCT 220/150 - Portable

The HFCT 220/150 is a large-size, portable, split-core, high frequency current transformer for earth screen/earth strap connection and/or connection around the insulated core of the cable (this is effective only after the point where the earth screen has been 'taken off').

High Frequency Current Transformer: HFCT 75/35 - Permanent

The HFCT 75/35 permanent is a small-sized, permanent, split-core, high frequency current transformer for earth screen/earth strap connection and is suitable for on-line PD testing and monitoring of HV cables. To be installed permanently within cable boxes.

High Frequency Current Transformer: HFCT 100/50 - Permanent

The HFCT 100/50 permanent is a small-sized, permanent, split-core, high frequency current transformer for earth screen/earth strap connection and is suitable for on-line PD testing and monitoring of HV cables. To be installed within cable boxes.

TEV Sensor

On-line PD measurements of air insulated and solid insulated switchgear have been made for around 30 years using TEV (Transient Earth Voltage) sensors connected to the earthed metal clad equipment (these are sometimes referred to as 'Capacitive Couplers').

Airborne Acoustic Sensor - Ultrasonic PD Probe Amplifier

The HVPD Ultrasonic PD Probe Amplifier is a very high sensitivity, low noise acoustic pickup designed for the detection of acoustic energy emitted into air by partial discharge.