摘要 |
PURPOSE: A partial discharge signal detecting device is provided to divide a signal detected by using a filter into a noise signal and a partial discharge signal according to a certain pattern, thereby reducing the amount of computation. CONSTITUTION: A partial discharge detecting part (100) is directly connected to a power line and separately detects a noise signal and a partial discharge signal, which are contained in the power line, according to the timing of signal generation. The partial discharge detecting part includes a shield case protecting the partial discharge detecting part from external electromagnetic waves. The partial discharge detecting part analyzes and detects a noise signal and a partial discharge signal, which are contained in the power line, according to a certain cycle pattern. [Reference numerals] (10) Power source; (100) Partial discharge detecting part; (20) Measurement target; (AA) Ground |