4160 versus 480
4160 versus 480
(OP)
I'm making a decision on whether to install a 400HP screw compressor with 4160V or 480V. In order to get to 4160 I would have to transform some of my available 480 to 4160. The original cost of the install would be more, but would there be any ongoing "gains" to offset the install price?






RE: 4160 versus 480
Eng-Tips: Help for your job, not for your homework Read FAQ731-376
RE: 4160 versus 480
Almost everthing you have to do to your system to connect a 480/4160 transformer you would have to do to connect the 480 volt motor. If your not allready committed to the 400 HP compressor you should look at actual load and wheather two smaller unit might have a lower total installed and operating cost.
RE: 4160 versus 480
I checked with our local utility and they lean toward the 480 unit, stating that most every 400HP motor in the state is typically 480V. They also say that 480V is good for motors up to 600HP. Other issues they mention are considerations for who will work on the 4160 and the eventual cost of having to rewind/repair a 4160 motor.
RE: 4160 versus 480
Eng-Tips: Help for your job, not for your homework Read FAQ731-376
RE: 4160 versus 480
I hear you loud and clear. Based on everything I'm hearing, 480 appears to be the prudent path forward.
Thanks.
RE: 4160 versus 480
Benjamin Lanz
Vice Chair of IEEE 400
Sr. Application Engineer
IMCORP- Power Cable Reliability Consultants