StewG
Member
- Location
- Saugerties, NY
I have designed and built a single purpose burn in system for testing products at my plant. The only problem I have with the system is that the 3, 15kva 1 ph tranformers that provide the test voltages have a high curren in rush problem even with no load present, blowing a fuse regularly. The transformers do not get energized, through a contactor, until the "start test" button is pushed. What would be the downside of bypassing this contactor and having the transfomers energized all the time, so that there is no inrush? The only time inrush would exist then is if the main disconnect were disengaged/engaged or if there were a power outage requiring a restart. Usually a single fuse change gets it going, but it is too regular for production purposes. Max amp reading logged was 195 amps, no load, inrush only. Currently fused at 30 amps at service disconnect and 60 amps per phase internally. What say ye? Bypassing contactor and leaving tranformers hot?