Electric Machine Design Course Electric Machine Cooling Strategies
- Slides: 23
Electric Machine Design Course Electric Machine Cooling Strategies Lecture # 34 Mod 34 Copyright: JR Hendershot 2012 340
Cooling paths for shaft mounted fans Mod 34 Copyright: JR Hendershot 2012 341
Large stator with cooling passages Mod 34 Copyright: JR Hendershot 2012 342
Stator core vent plates Mod 34 Copyright: JR Hendershot 2012 343
Thermal conductivity of various materials Mod 34 Copyright: JR Hendershot 2012 344
Machine cooling media options Mod 34 Copyright: JR Hendershot 2012 345
Examples of stator liquid jackets Mod 34 Copyright: JR Hendershot 2012 346
Stator spiral liquid sleeve Mod 34 Copyright: JR Hendershot 2012 347
External cooling fans & External cooling fins Mod 34 Copyright: JR Hendershot 2012 348
Classes of IEC electric motor enclosures Mod 34 Copyright: JR Hendershot 2012 349
Extruded fins for motor frame cooling Axial fins on frame for either vertical convection cooling or forced axial fan cooling Is a combination cooling fin design possible? Concentric-radial frame fins suitable for horizontal cooling Mod 34 Copyright: JR Hendershot 2012 350
Convection cooling of motor frame Mod 34 Copyright: JR Hendershot 2012 351
Motor frame fins for cooling designs Test data provided By Erland Persson Mod 34 Copyright: JR Hendershot 2012 352
Stator winding temperature monitoring Thermocouples or RTDs for temperature measurements Poor practice: On coil surface On stator core On any taped areas Single sensor Good practice: One in slot One inside end turns Mod 34 Copyright: JR Hendershot 2012 353
Cooling a large machine Mod 34 Copyright: JR Hendershot 2012 354
Special low cost cooling fin design Mod 34 Copyright: JR Hendershot 2012 355
Stator cooling ducts with forced air cooling Mod 34 Copyright: JR Hendershot 2012 356
Internal rotor & stator cooling ducts General Electric Mod 34 Copyright: JR Hendershot 2012 357
Internal shaft mounted fan cooling Mod 34 Copyright: JR Hendershot 2012 358
Cooling zones in rotors & stators fo Large GE generator cooling paths Mod 34 Copyright: JR Hendershot 2012 359
Temperature rise vs time for AC IM traction machine with internal spray cooling Mod 34 Copyright: JR Hendershot 2012 360
Title Mod 34 Copyright: JR Hendershot 2012 361
Title Mod 34 Copyright: JR Hendershot 2012 362
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