Kiljoy
Electrical
- Apr 15, 2003
- 132
OK, we have an order for two machines going to Brazil. The voltage there is 380V/3PH/60Hz. We use Weg motors that just happen to be built in Brazil. For some strange reason, they are telling us this is a long lead custom item that will take months to get. IT'S BRAZIL'S STANDARD VOLTAGE AND THE MOTORS ARE MADE THERE!!
Anyway, my question: Is it possible to use 460V/3/60Hz motors and re-nameplate them to 380V/3/60Hz? Would you use the high or low voltage taps (208-230v or 460v). There has been a mixup with our purchasing department and we may need to get these motors ASAP.
I'm thinking that the widings should be large enough on the 230V taps because 380V will draw less amps. I'm sure there are V/Hz ratio considerations and such, but the only information I could find was going between 50Hz and 60Hz, not 60Hz to 60Hz.
Anyway, my question: Is it possible to use 460V/3/60Hz motors and re-nameplate them to 380V/3/60Hz? Would you use the high or low voltage taps (208-230v or 460v). There has been a mixup with our purchasing department and we may need to get these motors ASAP.
I'm thinking that the widings should be large enough on the 230V taps because 380V will draw less amps. I'm sure there are V/Hz ratio considerations and such, but the only information I could find was going between 50Hz and 60Hz, not 60Hz to 60Hz.