SonofAdam
Member
- Location
- Portland Oregon
- Occupation
- Electrician
Taking my masters, and i keep getting motor questions and they vary each time. I have a post with a previous one, but this time i got a question like this and couldn't get any of my answers to line up
480 3 phase delta service feeds the following motors : (1) 5 hp motor, (1) 50 hp motor, and (2) 75 hp motors. One of the 75 hp motors is a 15 minute intermediate duty. Size the inverse time breaker that feeds the circuit.
I couldn't get one answer to line up on the test and am looking for help. I plan on taking again at end of month.
480 3 phase delta service feeds the following motors : (1) 5 hp motor, (1) 50 hp motor, and (2) 75 hp motors. One of the 75 hp motors is a 15 minute intermediate duty. Size the inverse time breaker that feeds the circuit.
I couldn't get one answer to line up on the test and am looking for help. I plan on taking again at end of month.
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