电气盘车在李电1#机扩修中的应用

Application of Electric Turning in 1 Unit Extensive Repair of Lijiaxia Hydropower Station

大型水轮发电机组在安装、检修过程中要盘动大轴进行大轴找中心、测量间隙 ,以确定摆度。过去需要用天车带动滑轮或人力来盘动 ,不但不安全而且在人力、物力上都有大量的浪费。为了提高水轮发电机组安装、检修工效 ,减轻劳动强度 ,保证工程质量和人身安全 ,黄河公司在李家峡水电站 1 # 机扩修中起用了由西安理工大学研制的“80 0A/2 0 0V转子盘车装置 ,60 0 0A/30V定子盘车装置。此装置在实际使用过程中操作方便、安全 ,盘车平稳 ,在扩修中起到了重要的作用。它利用发电机的电枢反应使大轴匀速旋转 ,在发电机的轴位、轴间隙、摆度方面取得了满意的正确数值。

While the large water turbogenerator unit is installed and repaired,it must move big axle to big axle look for center,measure gap,and confirm oscillating degree.In the past crown block brought along pulley or manpower to move,not only insecurity but also a mass of waste in manpower and material resources.For advanced installing and overhauling work efficiency of water turbogenerator unit,solved this lag manner,lightened labour intensity,ensured project quality and person safety,Lijiaxia Hydropower Station No.1 unit of Huanghe Company adopts 800A/200V rotor turning equipment,6000A/30V stator turning equipment made in Xian Institute of Technology.The equipment handles expediently and safely,and has be very important action in practically using.It utilizes generators armature reaction to big axle circumvolve uniformly,to acquire satisfying and accurate numerical value at generators axle position,axle gap and oscillating degree.The paper expounds mainly electric using part of this electric turning equipment.