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
We are pleased to announce our new manufacturer’s representative partnership with HighPoint Power Systems Inc. Effective May 1, 2022, HighPoint Power Systems is EA Technology’s exclusive manufacturer’s representative for the territories of California and Nevada. Established in 2003, HighPoint Power Systems has many years of experience serving the electrical power industry. We are confident that … Read more
To achieve transport decarbonisation goals, a large number of connection points will have to be provided to the grid. Some of these can be at large hubs, but a significant number will be connected at a domestic level to the low voltage (LV) network. These LV networks have finite capacity and when exceeded, their life … 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