摘要
空载投入变压器,从低压侧加压,高压侧相电压出现不平衡;而从高压侧加压,低压侧出现相电压不平衡,两种状态下线电压均平衡。此现象是什么原因造成,能否投入运行?是否影响发电机并列?就空载变压器投运电压不平衡问题进行探讨,得出在变压器各种试验满足规程要求的前提下,测得空载变压器线电压平衡,用户可以放心使用,对电气设备和发电机并列不会有什么影响。
For a no-load service transformer, if the voltage boost on low-voltage side, imbalance voltage occurred on the high-voltage side, if the voltage boost on high-voltage side, imbalance voltage occurred on low-voltage side, but in both states, the line voltage is balance. What is the cause? Is it can be used? Will the generator synchronization be affected? Based on these problems, imbalance operating voltage for no-load transformer was studied. The conclusion is that if line voltage of no-load transformer is balance with test regulations, then the transformer has no effect about electric equipments and generator synchronization.
出处
《水电站机电技术》
2013年第1期55-56,71,共2页
Mechanical & Electrical Technique of Hydropower Station
关键词
空载变压器
电压不平衡
探讨
no -load transformer
voltage imbalance
study
