ctrane
Member
- Location
- Jacksonville, Florida
I am looking for a little help with motor protection. I recently read the article by Mr. Holt in EC&M titled, "Motor Calculations Part 1: Motors and Branch-Circuit Conductors." I am having trouble understanding the last example in Part 1. I understand the Short-Circuit/Ground Fault protection, and am comfortable with the Branch Circuit Conductor sizing. But, what about the Overload Protection? By this calculation, does it mean that the fuse to protect the Overload will be a 15A Fuse? If this is the case, won't it trip on start-up? I have been trying to locate Fuse Trip Curves, and the ones from GE show a 15A Fuse having a 10,000sec+ capability of 30A. Is this consistent with Fuse Trip Curves? Also, what is the difference between FLA and FLC? I am new to this game, and any and all help will be greatly appreciated. Thanks.