| 摘要 |
<p>High voltage power lines are provided with a coupling capacitor for connecting carrier systems to the power line and for providing a voltage divider to indicate the line voltage. The coupling capacitor usually comprises a series of individual capacitors that provide the necessary voltage rating. A frequency and load independent measuring device comprises first and second input terminals adapted to be connected across one of the capacitors of the series. A measuring capacitor has one end connected to the first input terminal. A load impedance of any finite value is connected between the other end of the capacitor and the second input terminal. Means are provided for measuring the voltages between the second input terminal and each end of the measuring capacitor.</p> |
