Category Archives: Out-of-the-box

Within the first few days of arriving to a site, I was told about a job where their Overhead cranes had burnt out coils or contacts, on several of their hoists. On closer inspection, these were reversing contactors with dual coils. That was a first for me, I had never seen these before. We couldContinue reading “Boxed in”

These sockets were the control interface for some rackable 3.3kV motor contactors, they were 30 years old and they had a problem. When ever the plug was removed, the socket would come with it as well – leaving us with the real risk of exposed live parts, or shorting control circuits. It turned out thatContinue reading “Unplugged”