In order to guarantee SF6 delayed liquefaction, it is needed to equip electrictracing band to HGIS equipments used in low temperature environment. The power supplymode is one- to- one radiation power supply of AC power supply box. There are variedpower circuits and long AC cables, and the electric tracing band cannot be quicklyrestored as losing electricity. With the improved power supply mode, the AC power supplybox provides double circuit power supply, offers the power supply to busbar of tropicaldistribu...
【更新日期】
2016-10-14
【分类号】
TM643
【正文快照】
0引言HGIS(Hybrid Gas Insulated Switchgear,半封闭组合电器)是一种介于GIS和AIS之间的新型高压开关设备。HGIS结构与GIS基本相同,其优点是母线不装于SF6气室,是外露的,因而接线清晰、简洁、紧凑,安装及维护检修方便,运行可靠性高,适用于较恶劣的环境条件。对于在温度较低环境