1000 kV电力变压器低压绕组暂态电压分布的测量
In the case of impulse voltage, the initial voltage distribution has been restrained below applied voltage at sandwich-interleaved section and then slowly increases to 1.05 times the applied voltage at interleaved section. However, the initial distribution in continuous coil increases rapidly and its highest value is bigger than 1.1 times the applied voltage. And it is also found that the voltage distributions under different duration time follow the same trend but longer duration time will result in a more uneven distribution. in the case of steep front square wave, the amplitude of the transient voltage reduces faster downward the winding. A shorter rise time will lead to a much worse distribution. The amplitude of oscillation voltage can reach 1.17 times of the applied impulse voltage.
电力变压器 低压绕组 暂态电压 分布规律 测量方法
王喆 张乔根 王同磊 殷禹
西安交通大学电力设备电气绝缘国家重点实验室,西安,710049 中国电力科学研究院,北京,100192
国内会议
西安
中文
300-301
2013-10-17（万方平台首次上网日期，不代表论文的发表时间）