CAJ | 학술논문

10kV配电网中电缆故障指示器无法采集电缆运行电流和故障电流，现场信号传输多用光纤等硬连接形式增加施工和维护工作量，且现场较少采集运行环境温度，电缆故障指示器无法正常运行。针对以上这种经常发生的情况，本文介绍了一种基于电流互感器取电，超级电容储电和具备遥测、遥信功能的故障指示器的设计方法。故障指示器从10kV电缆获取能量，以电池作备用电源，实时检测各相电流和温度指示故障。该设计方案现场施工维护量小、寿命长，对提高设备的便携性，降低设备成本和能耗，有一定的参考价值。
10kV배전망중전람고장지시기무법채집전람운행전류화고장전류，현장신호전수다용광섬등경련접형식증가시공화유호공작량，차현장교소채집운행배경온도，전람고장지시기무법정상운행。침대이상저충경상발생적정황，본문개소료일충기우전류호감기취전，초급전용저전화구비요측、요신공능적고장지시기적설계방법。고장지시기종10kV전람획취능량，이전지작비용전원，실시검측각상전류화온도지시고장。해설계방안현장시공유호량소、수명장，대제고설비적편휴성，강저설비성본화능모，유일정적삼고개치。
The cable fault indicator in the 10kV cable distribution network cannot collect cable - running current and fault current. The use of hard - wired forms such as the optical fiber to transmit on - site signals increases construction and maintenance work. The running ambient temperature is seldom collected on the site. And the cable fault indicator cannot work nomially. In view of the above situations,this paper introduces a method to design a remote fault indicator with the functions of telemetry and remote signaling,which depends on the current transfomier to take power and the super capacitor to store power. The fault indicator obtains energy from the 10kV cable,and with batteries as the backup power,detects the phase current and temperature indication fault in real time. This design has some practical values in that it contains several advantages such as little on - site construction and maintenance work,long service life,and great potentials to improve the portability of the equipment and to reduce the cost and energy consumption.