Without using expensive software to determine the heating effect on each individual cable is there method to determine cable ampacity for multiple circuits in a single Duct Bank Conduit.
I have 11 motors, 3 lighting loads, and 2 receptacles that are 750 ft from the nearest 480 Vac source. It...
Senselessticker
I believe I'm providing the confusion. I don't think I used the proper notions to describe the situation and I didn't understand the complete system.
To clarify I have a 277 Light Panel in an electrical room. Due to the voltage drop the lighting panel would not be an option...
Thank you sense. You mentioned using the secondary tap however I have not been able loacte a transformer with a secondary tap. Is this a special order item or standard on most industrial transformers.
Sometime I get confused when denoting the voltage. For 480/277 source the primary voltage is...
I have a situation where I have a 277 Vac, 20 A load about 750 ft from the source. Due to the voltage drop I would like to us a 480/277 transformer at the source and bump the secondary voltage to approximately 285 Vac to compensate for the voltage drop.
Two problems I have is; that I will need...
