kharris
New member
- Location
- Garland, TX
While performing service on a shaker at a tile manufacturing plant, the operator asked me why shaker#1 was so loud. He said it started about 4 months ago. I looked at the motor and from what I could make out on the nameplate, the motor is only rated for 230V. When I checked voltage at the starter, the meter read 480V. How can a 230V rated motor run on 480V for four months without burning up? From what I have observed so far, this machine runs for what seems to be 10-30 minutes at a time, and not all that often. The nameplate was hard to read, but I did not notice a dual rating.