ADD - Arrestor Fault Detector
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ADD Online Direct Contact PD Test System 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 to read the levels from a great distance for maximal safety. FEATURES Three levels default indication Two zones (scale of default) Visual and audible indication All-Check self-test for verifying proper operation prior to use The ADD operation is quite simple. 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. REMOTE DISPLAY Carrying case included 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. CORONA EFFECT INCLUENCE Lightweight design The ADD efficiently filters the influence of corona type activity thus making it an ideal tool to detect insulating material internal partial discharge. Built-in universal hotstick adaptor Powered by 9V alkaline battery Special design for HV live contact SAVE TIME AND MONEY ADD instrument installed on a hotstick 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. Hook and Y type probes are available ndb Technologies inc. • 1405 St-Jean-Baptiste, office 111 • Quebec (QC) G2E 5K2 - Canada • Tel: 1(418)877-7701 Fax: 1(418)877-7787 Email: mkt@ndbtech.com

PROBE MODULE TECHNICAL SPECIFICATIONS Line Voltage Casing dielectric Power Supply 9V alkaline battery (PP3 Type) 10 hours with continuous measurement Auto shut-OFF Dynamic range Compatible with hotstick universal end fitting Operating temperature Storage temperature REMOTE DISPLAY TECHNICAL SPECIFICATIONS Display Operating temperature Storage temperature Arrestors are important for the protection of electric circuits and the degradation of their insulating material affect their performance and reliability. If the insulation of the arrestor is reduced when an overvoltage occurs, it may fail...