ADD - Arrester Partial Discharge Detector

The ADD allows online partial discharge detection on medium voltage accessories such as: Arresters, dry type transformers, bushings, insulators, etc... The partial discharge level is displayed by visual and audible indicators. The remote display module also allows reading the levels from a great distance for maximal safety.

The ADD is designed to detect partial discharge in medium voltage components by direct contact on energised conductors. We developed a contact method using ultra wide band radio frequency detection technology. Using the ADD on a regular basis will help you to prevent failures, customers complain and costly investigation to identify the source of a problem or potential problems. The probe is placed in direct contact with the energised component under test. The partial discharge level is displayed on the ADD and on the remote display. The remote display gives a wireless reading of the probe’s measurement. The measurement range is 0 to 60dB and the display will show ‘‘OL’’ if the reading is over its maximum. The ADD efficiently filters the influence of corona type activity thus making it an ideal tool to detect insulating material internal partial discharge.

Main features:

  • Three level default indication
  • Two scales of default
  • Visual and audible indication
  • Built-in universal hotstick adaptor
  • Powered by 9V alkaline battery
  • Carrying case included
  • All-Check self-test for verifying proper operation prior to use
  • Low battery indication
  • Lightweight design
  • Special shape for HV equipment live contact

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