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At the steel mill....
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1200 volts? Is that a typo? I would think it would be a lot higher than thatFrom what I have seen it's 1200VAC 3PH and this is the will make motor #7 the other 6 were installed in 1995. To who ever asked, each motor is 20000hp.
You'd have to fire up a peaker, just to start it1200 volts? Is that a typo? I would think it would be a lot higher than that
I hope to shout its a typo, otherwise the motor FLC is going to be around 12,000A!bkmichael65 said:1200 volts? Is that a typo? I would think it would be a lot higher than that
Is this the Nucor rolling mill? If so, I believe those are 1200VDC motors, fairly common in large DC motors because I think that's the limit of practicality for DC. Might be getting fed with 3phase AC, likely 12.47kV, but there would be transformers ahead of the rectifiers inside of the drive system. They will have multiple phase shifting transformers feeding multiple rectifiers to reduce the harmonics caused by the rectification, but if the jacket you read was on the output side, it would point to the motor being DC.Ozzy1990 said:Pretty sure its 1.2KV, the jacket on the cable said it was only good to 2.4KV