高海拔地区长隧洞高压进洞供电技术研究  

Technologies of high-voltage power supply for long tunnel in high-altitude locality

作　　者：郭俊波[1] 彭健[1] 肖梦奇[1] 

机构地区：[1]中国人民武装警察部队水电第三总队,成都610036

出　　处：《中国水利》2016年第20期60-61,65,共3页China Water Resources

摘　　要：随着隧洞进深加长,低压进洞不能满足施工要求,根据用电情况结合高海拔缺氧地区降效问题,研究高压进洞技术,确定变压器容量及电缆规格。实践证明,在距离洞口一定长度后,采用干式变压器进洞,解决了电压不足、电气设备无法启动等问题,确保了隧洞正常施工。详细介绍了高压进洞设计方法和相关技术措施,为类似工程提供设计和施工经验。Low-voltage power supply cannot meet the requirement of tunneling along with deepening of tunnel excavation in high-altitude locality. Technologies of high-voltage power supply？for long tunnel are studied by taking the electricity utilization and potential deficiency as a result of high altitude into consideration, which helps to determine the transformer capacityand cable specification. When the tunnel gets longer and deeper, drytype transformer should be employed for？preventing under-voltage and failure of electrical equipment, in order to keep normal tunnel excavation. Design and technologies involved with high-voltage power entering into？tunnel are introduced in detail, which shall provide experiences for similar projects.

关 键 词：高海拔 长隧洞 高压进洞 供电技术 拉洛水利枢纽 

分 类 号：TV554[水利工程—水利水电工程]