摘要
针对电网中污染电能质量的设备,本文采用青智8910C电能质量分析仪和SL1400横河示波记录仪对某型电力机车主变压器3次侧(单相400V)的电能质量进行了测量,测量结果表明,电力机车内配置的某些大功率设备在启停时,会导致主变压3次侧的电压产生波动;非线性设备的接入会导致主变压器3次侧产生较严重的谐波污染,并且致使某些设备功率因数偏低,这些都将会导致线路的电压损失过大。该研究为改善主变压器3次侧的电能质量提供了参考。
For the equipments bring pollutions of power network, this paper measures the power quality of the third side of the main transformer （400 V,single-phase） of electrical locomotive by using the Qingzhi 8910C and YOKOGAWA SL1400 ScopeCorderLITE. The measurement results show that some large power equipments in the electrical locomotive may cause voltage fluctuating on the third side of the main transformer. Nonlinear devices will bring serious harmonic pollution problems, and it will also lead to the power factor lower. All of these problems will cut down the electric efficiency. The study can be used as reference for improving the power quality of the third side of the main transformer.
出处
《青岛大学学报（工程技术版）》
CAS
2013年第3期19-22,共4页
Journal of Qingdao University(Engineering & Technology Edition)
关键词
电能质量
电压波动与闪变
谐波
power quality
voltage fluctuation and flicker
harmonics
