TMEIC Industrial Motors Overview letter size - Tmeic.com
TMEIC Industrial Motors Overview letter size - Tmeic.com
TMEIC Industrial Motors Overview letter size - Tmeic.com
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
High-speed Induction and<br />
Medium-High Power Synchronous <strong>Motors</strong><br />
High-Speed Induction <strong>Motors</strong><br />
Motor Speed – Up to 12,000 rpm<br />
Rotor – Squirrel cage with aluminum rotor bars<br />
Stator – Two pole windings, spring mounted<br />
for low vibration<br />
Bearings – Oil-fed sleeve bearings or Magnetic bearings<br />
11,900 rpm Induction Motor<br />
For very high speeds, induction motors are used.<br />
These are custom designed for special applications<br />
such as driving gearless <strong>com</strong>pressors. The example<br />
shown here runs at up to 11,900 rpm and develops<br />
1.8 MW for driving a <strong>com</strong>pressor.<br />
Data for typical high speed induction motors are<br />
shown below.<br />
Medium-High Power Synchronous <strong>Motors</strong><br />
<strong>TMEIC</strong> custom designs and builds medium and<br />
high power synchronous motors for special<br />
applications such as driving mills, blowers, pumps<br />
and <strong>com</strong>pressors. The example shown here is a 53<br />
MW synchronous motor for a steel mill blower. It<br />
runs at 3,000 rpm with a 10 kV supply. Data for typical<br />
synchronous motors are shown below.<br />
Power<br />
Supply Voltage<br />
Poles<br />
Enclosure<br />
Classified Areas<br />
Available<br />
Standards<br />
Up to 8000 kW<br />
2.3-11 kV<br />
2 Poles<br />
Totally Enclosed Water to<br />
Air Cooling TEWAC/IP55 or<br />
Air to Air TEAAC/IP55<br />
Exn, Exe, or Exp Protection<br />
IEC, NEMA, BS, AS<br />
Power<br />
Supply Voltage<br />
Poles<br />
Enclosure<br />
Classified Areas<br />
Available Sync<br />
Field Designs<br />
2000 kW up to 80 MW, either<br />
Utility Fed or VFD Powered<br />
3.3-13.8 kV<br />
Up to 34 Poles<br />
Totally Enclosed Water to<br />
Air Cooling TEWAC/IP55 or<br />
TEAAC/IP55 – Other Enclosures<br />
Available<br />
Exn/Exp Protection Available<br />
Brush Type, DC Brushless,<br />
AC Brushless<br />
53 MW Synchronous Motor<br />
Motor Speed – Very low speed up to 3,600 rpm<br />
Rotor – Cylindrical solid rotor for 2 pole, salient pole<br />
for 4 to 34 poles<br />
Bearings – Oil-fed sleeve bearings<br />
8