定子绕组端部绝缘施加直流电压试验在空冷发电机中的应用  

Application of DC Voltage Test on Stator Winding Terminal Insulation in Air-Cooled Generators

作　　者：王美树 金泱 

机构地区：[1]浙江浙能金华燃机发电有限责任公司,浙江金华321025 [2]浙江浙能技术研究院有限公司,杭州311121

出　　处：《浙江电力》2018年第1期82-85,共4页Zhejiang Electric Power

摘　　要：电位外移试验是传统高压试验的有效补充,该试验对空冷发电机组同样适用。通过详细介绍某发电厂空冷发电机非停事故后,在大修过程中应用电位外移试验的原因及其过程,论证了电位外移试验对空冷机组的适用性,并针对空冷发电机定子线棒端部绝缘质量把关提出了若干建议。As an effective complement to traditional high voltage test, external electric potential measurement test can also be applied to air-cooled generators. By elaboration on the reason and process of external electric potential measurement test in overhauling after unscheduled shutdown of air-cooled generator in a power plant, the paper demonstrates that the test is applicable to air-cooled generators; besides, it brings forward some suggestions on insulation quality control of stator coil bar end of air-cooled generators.

关 键 词：电位外移 空冷发电机 绝缘盒 绝缘隐患 

分 类 号：TM311[电气工程—电机]