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    • 20. 发明授权
    • Method and apparatus for diagnosing overheating of an electric machine
    • 诊断电机过热的方法和装置
    • US4373376A
    • 1983-02-15
    • US188096
    • 1980-09-17
    • Kiyoshi NaratoKeizo OhtsukaSadahiko Niwa
    • Kiyoshi NaratoKeizo OhtsukaSadahiko Niwa
    • H02H5/00G01N30/06G01N33/00H02H7/06H02K9/24G01N31/08
    • G01N30/06
    • A method and apparatus for diagnosing an overheating of a gas-cooled type electric machine having at least some components coated with an organic insulating material which decomposes into, for example, particles when subjected to high temperatures. The apparatus includes an extracting arrangement for enabling an extraction of gas from any region in an interior space of the electric machine. A device is provided for detecting a density of the particles contained in the gas and an arrangement is provided for analyzing a composition of the decomposed organic insulating material in the coolant gas so that, at first, an overheat region may be found and, secondly, an overheat position in the overheat region can be determined on the basis of the organic composition of the decomposed organic insulating material contained in the coolant gas.
    • 用于诊断气冷式电机的过热的方法和装置,其具有涂覆有有机绝缘材料的至少一些部件,当经受高温时分解成例如颗粒。 该装置包括用于使得能够从电机的内部空间中的任何区域提取气体的提取装置。 提供一种用于检测包含在气体中的颗粒的密度的装置,并且提供了用于分析冷却剂气体中的分解的有机绝缘材料的组成的布置,使得首先可能发现过热区域,其次, 可以基于包含在冷却剂气体中的分解的有机绝缘材料的有机组成来确定过热区域中的过热位置。