Power Quality Monitoring - a recommended talk
David Bradley presented an excellent talk to Bucks LN and the local CIBSE branch in September. The title was “Power Quality Monitoring”. It was a lively, enthusiastic and well-informed talk on the causes of harmonics, and other perturbations, either received from or injected onto public power supplies. David explained that monitoring systems can be quickly and inexpensively installed. He emphasised that the information gathered may be used not only reduce harmonics & noise but also to save money. Amongst other aspects of the topic, he looked at the problems being encountered from the extensive use of switched mode supplies. These problems include loads increasingly being leading, rather than lagging, and the impact of skin effects on the sizing of neutral conductors. David’s talk was…