阿克苏水库35kV变电站电气一次设计分析

Primary Electrical Design and Analysis of 35kV Substation of Aksu Reservoir

变电站对保证工地的机械设备运行有着决定性作用,设计中关系到众多设备。文章以新疆白杨河阿克苏水库工程35kV变电站为例,通过对电气主接线和主要电气设备选择设计,对变电站电气一次部分进行设计,包括对主变压器、35kV和10kV侧接线,以及35kV和10kV电路的导体进行选择,其中前者导线型号LGJ-150/20,后者主变进线选用ZR-YJV22-8.7/15-3×150电缆。同时,对变电站防雷接地、电缆敷设等设计要点进行说明。

Substation has a decisive role in ensuring the operation of mechanical equipment on the construction site,and many devices are related to the design.35kV substation of Aksu Reservoir Project in Baiyang River in Xinjiang is adopted as an example in the paper.The primary electrical part of the substation is designed.Through the selection and design of the main electrical wiring and main electrical equipment,the primary part of the substation’s electrical design is carried out,including the selection of main transformer,35kV and 10kV side wiring and conductors of 35kV and 10kV circuits The former conductor type is LGJ-150/20,and the latter main transformer incoming line is ZR-YJV22-8.7/15-3×150 cable.Meanwhile,the lightning protection grounding of substation,cable laying and other design keys are explained.