Author(s)

Qiudong Sun, Zhengxin Zhou, Weiqin Guo

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This study presented an insulation state monitoring method for large generator based on radio frequency (RF) technique. As an on-line condition monitor and the precondition of condition-based maintenance (CBM), the RF monitor used the high frequency current mutual inductor to detect the partial discharge signal from neutral wire of stator windings. According to the magnitude of indicative value of RF monitor, a five phase model was also proposed to manage the generator’s running better. The practices show that the proposed method is effective.

Large Generator, Partial Discharge, Radio Frequency Technique, On-line Monitoring, Running Management

Q. Sun, Z. Zhou and W. Guo, "Insulation State On-line Monitoring and Running Management of Large Generator," Energy and Power Engineering, Vol. 2 No. 3, 2010, pp. 203-207. doi: 10.4236/epe.2010.23030.