Research on stator insulation structure of 24KV rated evaporative cooling generator

Author

Ru, Luan ; Jian, Jiang Zhi ; Zi, Li Ying

Author_Institution

Beijing Inst. of Civil Eng. & Archit., Beijing

fYear

2007

fDate

8-11 Oct. 2007

Firstpage

1315

Lastpage

1320

Abstract

Under high voltage, the technology to improve electric field distribution of stator coil in slot and to against corona in slot is hard to finish. By calculative and experimental simulation, this paper analyzed in detail the three-state insulation system consisted of gas, liquid, and solid formed by evaporative cooling mode, including the reliability of its anti-corona and anti-breakdown. This paper offers a new kind of stator insulation structure that is suitable to evaporative cooling mode and can be applied to high voltage level. After a series of researches on insulation characters and laws of the new structure, a conclusion that the new insulation system is feasible to 24KV rated voltage is arrived.

Keywords

cooling; electric fields; electric generators; machine insulation; stators; electric field distribution; evaporative cooling generator; high voltage level; stator coil; stator insulation structure; three-state insulation system; voltage 24 kV; Coils; Cooling; Corona; Dielectric liquids; Dielectrics and electrical insulation; Gas insulation; Power transformer insulation; Solids; Stator cores; Voltage; Anti-corona; Evaporative cooling; Insulation; Stator;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2007. ICEMS. International Conference on

Conference_Location

Seoul

Print_ISBN

978-89-86510-07-2

Electronic_ISBN

978-89-86510-07-2

Type

conf

Filename

4411944