Brad Monaghan 
Understanding and accurately analysing partial discharge (PD) phase plots is essential for diagnosing and managing PD in high voltage (HV) insulation systems. This guide provides a comprehensive overview of phase plots, their creation, interpretation, and the critical role they play in PD diagnostics. Introduction to Phase Plots Phase plots, or Phase Resolved Partial Discharge (PRPD) … Read more
Plants have feelings too! Did you know certain plants actually emit ultrasonic sounds under stressful situations such as during a drought or when their stems are cut off? These sounds are comparable to a squeal for help. However, will be at a much higher frequency (likely from 20kHz to 100kHz) than human ears can pick up. … Read more
High voltage electrical failures can be detrimental and often result in significant losses: Severe damages to assets and hefty repair costs Injury or trauma to operators working on-site or the general public Loss of revenue The good news is, the build-up leading to these failures often happen over time and can be predicted early. Most … Read more
Once you’ve detected and located Partial Discharge (PD), you’ll have a wealth of data. The question is: how can you get the most value from it? In this recorded webinar, our team of expert engineers breaks down field data into actionable insights that direct the most feasible repair/replacement strategies. Join our Head of Technical Services … Read more
System frequency at any electrical installation will tend to slow down and speed up or ‘drift’ away from its intended setting of usually 50/60Hz, all day every day. The aim of achieving a good phase lock is to ‘match’ the 50/60Hz reference of a PD test instrument with the system frequency at the time of recording PD data. … Read more
Following a previous article on PD phase plots, this article explains the importance of achieving a phase lock while capturing phase resolved partial discharge (PRPD) patterns. What is a phase lock? A phase lock is applied while recording PRPD patterns to ensure data quality. It effectively matches the frequency of your test instrument to the typical … Read more
Partial discharge testing results in a whole batch of PD data, waiting to be analysed. How can you best break down this data and make the most sense out of it? This webinar provides a full walkthrough of PD data interpretation. We’ll discuss the different types of PD data and show how useful insights can … Read more