This is kind of a follow up to a thread I started awhile back and was looking for a little input. I have a 75 KVA transformer(wired in reverse to act as a step up transformer (208v to 480v), large inrush current) where the inrush current when the transformer is powered on is blowing past a 100amp breaker in my panel and blowing the main fuse 100amp fuse at the main. I understand that I probably need a service upgrade, but was hoping for some input on an idea a friend of mine mentioned. Here's what he proposed:
Here's the idea:
Install a 20amp 3 phase breaker in the panel and put 3 1000 watt bulbs (70 ohms of resistance) in line on each phase and tie them to the primary side of the transformer to energize the transfomer and "trigger" the inrush current which would subsequently which would then be limited by the 1000watt bulbs(i.e. resistors) on each leg. Wait for a few seconds and then turn on 100amp breaker to fully energize the transformer and then turn off the 20amp breaker.
Any input or ideas would be appreciated. If it's even feasible. We were talking about it, so I figured I would throw it out here and see what the masses say.
Thanks
Here's the idea:
Install a 20amp 3 phase breaker in the panel and put 3 1000 watt bulbs (70 ohms of resistance) in line on each phase and tie them to the primary side of the transformer to energize the transfomer and "trigger" the inrush current which would subsequently which would then be limited by the 1000watt bulbs(i.e. resistors) on each leg. Wait for a few seconds and then turn on 100amp breaker to fully energize the transformer and then turn off the 20amp breaker.
Any input or ideas would be appreciated. If it's even feasible. We were talking about it, so I figured I would throw it out here and see what the masses say.
Thanks
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