| 摘要 |
PURPOSE: A partial discharge measurement system of a power cable is provided to improve sensitivity of accurate partial discharge signal measurement, and to judge the partial discharge position more accurately. CONSTITUTION: A partial discharge measurement system of a power cable(70) comprises a sensing sensor(10) sensing a partial discharge signal, and an insulator transformer(20) blocking surge inputted from the power cable and transferring the partial discharge signal, and a wide band amplifier(30) amplifying the partial discharge signal transferred through the insulator transformer(20) and a partial discharge analysis apparatus(40) analyzing the partial discharge signal inputted through the wide band amplifier. The first ferrite core surrounds the power cable, and the second ferrite core surrounds a cross bonding line(76) connected between different phases of the power cable.
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