Title :
Investigation of white powder found on pump motor stator winding
Author :
Rux, L.M. ; Hurcomb, D.F.
Author_Institution :
Tech. Service Centre, Bur. of Reclamation, Denver, CO, USA
Abstract :
During a routine physical inspection of pump motor unit P7 at the Little Harquahala pumped storage power plant in Central Arizona, USA, a very fine, white powder was found on the surface of the stator winding. A series of inspections, tests, and analyses was performed to determine whether the particles were caused by electrical, chemical, or mechanical breakdown of the stator winding insulation system, or the result of contamination by a foreign material. The course and outcome of the stator winding investigation are presented
Keywords :
electric breakdown; electric motors; inspection; insulation testing; machine insulation; machine testing; pumped-storage power stations; pumps; stators; USA; chemical breakdown; contamination; electrical breakdown; inspection; insulation tests; mechanical breakdown; pump motor stator winding; pumped storage power plant; white powder; Chemical analysis; Inspection; Insulation testing; Materials testing; Performance analysis; Powders; Power generation; Stator windings; Surface contamination; System testing;
Conference_Titel :
Electrical Electronics Insulation Conference, 1995, and Electrical Manufacturing & Coil Winding Conference. Proceedings
Conference_Location :
Rosemont, IL
Print_ISBN :
0-941783-15-4
DOI :
10.1109/EEIC.1995.482516
