Is this arrangement acceptable from NEC point of view?
Is this arrangement acceptable from NEC point of view?
(OP)
Please see attached scan:
https://res.cloudinary.com/engineering-com/image/upload/v1437659196/tips/Scan_xnx3b2.pdf
A quick summary:
Existing Design - MV Starter feeds a 500hp motor via undeground conduit.
Proposed Design - Use the MV starter to feed a MV VFD, and then re-use the underground conduit to feed the motor.
I'm curious to know if it is acceptable to route the cable between the VFD and motor via the MV starter section. We've made sure that there is sufficient space, cutout sections at the top, and no interferences.
The cable would be routed through the starter section inside a conduit, as shown in the attached photo.





RE: Is this arrangement acceptable from NEC point of view?
good luck,
Dave
RE: Is this arrangement acceptable from NEC point of view?
I don't have another supply available hence using the starter and vfd in series.
RE: Is this arrangement acceptable from NEC point of view?
"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
RE: Is this arrangement acceptable from NEC point of view?
However I can't think of a code rule that says you can't run the conduit through the starter.