What formula do you use to properly fuse the control circuit in a Motor Starter....480 VAC for an example.
This is the formula that I have....
Primary side: VA of control transformer .050KVA / 480 (Primary side)= Fuse size
50VA/480= .10+25% =.13 or 1/10
Fuse on Primary side should be...
Looking for the answer to 3 questions. I am a new hire at a paper mill as an electrician with no industrial experience. I have a degree in industrial technology and had some motor control classes about 12 years ago, but I am rusty....I can read prints and wire up simple stop start circuits...