doblePRIME PD-Guard

LDC-7 /UHF

Pulse generator for sensitivity verification of PD measuring circuits operating in the UHF/VHF domain.

HFCT Sensor

• Clip-on
• 10 kHz – 200 MHz

HFCT-300 Sensor

For use at cable terminations.

• Hand-held split-core sensor specially designed for coupling out high frequency PD-signals
• Applicable for PD tests on any part of the PD signal loop between the insulation electrodes where the outgoing and incoming signals do not cancel each other out
• For highly sensitive PD measurements with superposed line currents or high reactive currents (50/60 Hz) which can reach up to 300 A

LDWS-T sensor

For use at HV cable terminations.

• For decoupling of PD signals (TNC-socket)
• High impedance version
• For ungrounded and grounded devices

UHF Drain Valve Sensor DN50/DN80

For use with HV Transformers.

• Designed for decoupling of electromagnetic PD signals from inside of transformers
• Sensor fits into DN 50 or DN 80 drain valves
• Supports “Performance/ Sensitivity Check” where High frequency test pulses can be injected with further integrated electrodes
• Grounded sensors (for low frequencies)

UHF PD Plate Sensor

For use with HV Transformers.

• Used for the decoupling of electromagnetic UHF PD signals from the inside of the transformer tank
• Designed to retrofit transformers that do not have oil flanges with free internal tubes
• Can be installed on new transformers during manufacturing
• Used for testing and optimizing mechanical properties such as oil-tightness, thermal withstanding of changing temperatures and pressure withstanding

UHF Spacer Sensor

For use in GIS.

• Antenna for polymeric spacers or glass inspection windows
• The sensor can be placed across a joint on a GIS to find evidence of partial discharge inside