Reason analysis and treatment method of temperature rise of generator slip ring electric brush

Abstract

Abstract: In the operation of generator set No.12 of Panzhihua Branch of Huadian Sichuan Power Generation Corporation Limited, the temperature of the six positive pole electric brushes of the rotor rises alternately, and the maximum temperature of individual brush rises up to 300℃. It was confirmed by analysis that the reason of the temperature rise of the electric brush is the blockage of the small holes ducts on the slip ring by deposition. The treatment method of temperature rise of electric brushes of generator in operation was given. Aiming at unit overhaul process, some concrete requirements of the maintenance quality of the rotor slip ring and accessory devices and acceptance inspection were given, which is helpful for ensuring safe operation of the unit.

Key words: generator, rotor, electric brush, temperature rise, treatment

WANG Shaoping. Reason analysis and treatment method of temperature rise of generator slip ring electric brush[J]. Huadian Technology, 2012, 34(6): 51-53.

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Reason analysis and treatment method of temperature rise of generator slip ring electric brush

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