CAJ | 학술논문

设计了一种新型的等温松弛电流测试系统，测试电路中考虑到微电流测试的抗干扰问题，基于该套系统分别研究了未老化、人工加速老化和实际运行的XLPE绝缘电缆的等温松弛电流，研究表明采用等温松弛电流法不仅能够有效评估实验室电缆的老化程度，同时能够有效评估现场运行电缆。
설계료일충신형적등온송이전류측시계통，측시전로중고필도미전류측시적항간우문제，기우해투계통분별연구료미노화、인공가속노화화실제운행적XLPE절연전람적등온송이전류，연구표명채용등온송이전류법불부능구유효평고실험실전람적노화정도，동시능구유효평고현장운행전람。
This paper designed a new type of constant temperature relaxation current test system, which considered the anti-interference problem of micro-current test in the testing circuit. On the basis of this system, this paper studied the non-ageing, manual speedup ageing and constant temperature relaxation current of actually running cross linked polyethylene (XLPE) insulated power cable. Research shows that adopting the constant temperature relaxation current method could not only evaluate the ageing degree of cable in lab effectively, but also evaluate the site running cable.