On 02/06/2016 11:23 AM, Larry Jaques wrote:
On Fri, 05 Feb 2016 16:18:16 -0600, Ignoramus9436
wrote:

On 2016-02-05, John wrote:
On Thu, 04 Feb 2016 19:57:31 -0600, Ignoramus11775
wrote:

....
http://igor.chudov.com/tmp/4500-hp-motor.jpg

It was used to power a big blower at a coal fired electrical power
station. ...
The blower at iFly is 1,600 HP, and this is 4,500 HP, almost 3 times bigger.
....
What was the voltage?

4100 volts

No wonder the guys were wearing the thick canvas/rubber(?) arc-flash
suits.
....

Ayup...

RCP motors are typically from 6.1 to 6.9 kV from 6,000 to 10,000 HP.
Still that'll be almost 1,000 A current, 330 A/phase...

Typical 1000 MWe spec's...

System Temperatu 537 °F
System Pressu 2250 psig)
Capacity: 78 750 gpm
Head: 365 ft
Power Input: 6 600 kW
Motor Voltage: 6 900 V

Some of the (tiny little) physical dimensions...

Length of Stator Cable: 15 748 ft (~3 miles)
Overall Pump Length: 265 in ( 22 ft)
Total Weight: 139 442 lb (697 ton)

There's four of these per plant so they alone are a plant load of 26.4
MWe. I mentioned earlier turning them on is how they raise plant
temperature to hot-zero power conditions before going online...

There are bigger motors; these are remarkable in that the run 100% of
time plants are operational and I can't recall ever they being the cause
of an outage. I'm sure there have been but they are remarkably reliable
given their size and complexity...

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