Limitations on water cooling of rotors and stators in intermittent duty machines

Author

Hearn, Clay S. ; Hahne, Jonathan J. ; Hebner, Robert E.

Author_Institution

Texas Univ., Austin, TX, USA

fYear

2004

fDate

17-20 Oct. 2004

Firstpage

696

Lastpage

699

Abstract

This investigation focuses on charge transfer and standoff considerations for a water coolant, where the water is in intimate contact with energized conductors. The flow rates of interest are up to 5 m/s. The emphasis is on the behavior of the coolant in intermittent duty machines in which the conductors are energized for periods of 10^-5 to 10^-3 s. As the water is routed through copper coolant tubes, the primary contaminant produced is copper.

Keywords

charge exchange; contamination; coolants; cooling; copper; electric machines; electrical conductivity; rotors; static electrification; stators; 10^-5 to 10^-3 s; 5 m/s; Cu; charge transfer; copper concentration; copper contamination; copper coolant tubes; electrical conductivity; energized conductors; flow electrification; flow rate; intermittent duty machines; pulsed rotating machines; rotors; stators; streaming electrification; water coolant standoff considerations; water cooling limitations; Coils; Conducting materials; Conductors; Coolants; Cooling; Copper; Rotors; Stators; Thermal conductivity; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2004. CEIDP '04. 2004 Annual Report Conference on

Print_ISBN

0-7803-8584-5

Type

conf

DOI

10.1109/CEIDP.2004.1364345

Filename

1364345