| 摘要 |
<p>The present invention relates to a device and a method for removing a noise of a partial discharge signal using a variable timing filtering method (VTFM). The device blocks at least one of a low frequency band of the minimum frequency of a partial discharge signal or less, and a high frequency band of the maximum frequency of the partial discharge signal or more related to a signal detected by a partial discharge sensor, and passes other bands. The device passes a high speed signal, and blocks a low speed signal based on the signal speed calculated by integrating a signal as a time unit varied by the signal speed fed back during the certain time.</p> |
