jahilliard
Senior Member
Today I ran into a scenario where an office bldg had flooded and a restoration company had come in to clean up and had several pieces of equipment plugged in and running at once. They called me to check out everything in the electrical room because they smelled something burning. When I arrived I measured the load on the panel with the receptacles within that floor with all the equipment. Amperage was reading 179 Amps continuos. There is an enclosed CB rated at 175 Amps feeding that panel, it had already tripped a couple times I was told. The ECB is fed from a step down transformer rated at 125 Amps and was too hot to touch and obviously was creating the burning smell. This exact application is on all 4 floors. Unles I am overlooking something it seems to me the OCP is too high (175A) to protect a 125A rated transformer, even at 125%. Am I wrong or what?? Thanks.
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