In the mid 1980’s, I was an engineer in GEC Measurements who worked closely with Dr Aggarwal, Prof. Johns and their many researchers and PhD students. At the time Bath University was a centre of academic excellence in transmission line protection, and in conjunction with GEC in Stafford helped change how utilities protected electrical networks and kept the lights on. It was always a great pleasure to work with Raj and when I made the transition to academia in 1990, he became an important mentor and friend. It was always a pleasure to meet him at a conference, read his papers, examine his students and chat about the past, the present and the future.