| 摘要 |
<p>Capacitors (5a, 5b) are provided inside of the insulator of bushings (4a, 4b), one end of the capacitors (5a, 5b) connected to the side of a central conductor (3a, 3b) and the other to the side of a tank (1), which is a ground. When a discharge signal from outside of the tank (1) is transmitted to the capacitors (5a, 5b) via a central conductor (3a, 3b), the capacitors (5a, 5b) act as a filter attenuating the signal in the frequency band of the discharge waveform and preventing said signal from reaching inside of the tank (1). If the antenna (7) arranged inside of the tank (1) receives a signal in the frequency bandwidth of the discharge waveform, it is determined that a discharge has been detected in the tank by a discharge detection unit (20).</p> |
