The stator bar´s transient temperature characteristic of evaporative cooling generator-motor

Author

Jinxiu Chen ; Lin Ruan

Author_Institution

Inst. of Electr. Eng., Beijing, China

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

339

Lastpage

343

Abstract

As grid adjusting unit, the long-term stable operation of pumped storage station is quite significant. Compared with normal air cooling generator-motor, the evaporative cooling generator-motor has higher cooling efficiency and reliability. Firstly, this paper introduces the experiment platform of inner cooling hollow copper strand. Then, the transient temperature testing result of hollow copper strand will be used as the known condition to calculate stator bar 3D temperature during the load change process. The outstanding transient temperature characteristic of the stator bar proves the advantages of evaporative cooling generator-motor.

Keywords

electric generators; power generation reliability; pumped-storage power stations; stators; cooling efficiency; cooling reliability; evaporative cooling generator-motor; grid adjusting unit; hollow copper strand; load change process; normal air cooling generator-motor; pumped storage station; stator bar 3D temperature; transient temperature testing; Cooling; Copper; Heating; Insulation; Stators; Temperature; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7013499

Filename

7013499