Tipsy
Aluminum
- Joined
- Nov 15, 2005
- Location
- Topanga CA
Hello,
I built an RPC with a 10hp motor, and it works great. Unfortunately I have a French Cazeneuve lathe circa late 70s an HB575 that wants 380V.
I used a 15kva transformer and wired it low voltage Delta and high voltage Star which has a neutral. Even on the lowest voltage setting I'm getting 504v between line 1/2, 540v between the next two 2/3 and 550v on the third pair 1/3.
Will this destroy my 380v motor? It is not very sophisticated except a bunch of contractors in the electrical bay, no real boards or anything.
504v is 33% over and 550v is 44% over the designed 380v. Is that crazy?
I was thinking worst case the motor shorts and I have to have it rewound to match my voltage perhaps?
I built an RPC with a 10hp motor, and it works great. Unfortunately I have a French Cazeneuve lathe circa late 70s an HB575 that wants 380V.
I used a 15kva transformer and wired it low voltage Delta and high voltage Star which has a neutral. Even on the lowest voltage setting I'm getting 504v between line 1/2, 540v between the next two 2/3 and 550v on the third pair 1/3.
Will this destroy my 380v motor? It is not very sophisticated except a bunch of contractors in the electrical bay, no real boards or anything.
504v is 33% over and 550v is 44% over the designed 380v. Is that crazy?
I was thinking worst case the motor shorts and I have to have it rewound to match my voltage perhaps?