| 1. | Simulation study of switching overvoltage strike of power stations
厂站操作过电压冲击仿真研究 |
| 2. | Switching overvoltage of vacuum circuit breaker and its prevention
真空断路器应用中的操作过电压 |
| 3. | Switching overvoltage analysis and its restricted measures of vacuum circuit breaker
真空断路器操作过电压分析与限制措施 |
| 4. | The stator insulation failure can be finally resulted in by the insulation damage of the generator stricken by switching overvoltage , for the problem ab out the insulation safety of large generator stricken by switching overvoltage , but some appropriate methods for diagnosing the stator insulation faults have not been even solved
操作过电压对大型发电机绝缘的损伤会导致大型发电机的定子绝缘事故，但是目前对于该故障的在线诊断方法还未能很好解决。 |
| 5. | Therefore , in order to protect large generating equipment against the switching overvoltage , the research on safety forecast theory and real - time monitoring technique for the surge overvoltage of large power stations has not only importance and benefit to safety operation of generators , but also has the great importance for the engineering of transferring electricity from the west to the east in china and the safety operation of large electric power network with great capacity and long - distance transmission line
因此，针对厂站操作过电压对大型发电设备的冲击问题，重点开展厂站操作过电压的安全预测理论与实时监测技术的研究，不仅直接对大机组安全运行有着重要的现实意义，而且对目前我国西电东送工程的实现和确保大容量远距离输电电网的安全稳定运行都具有十分重要的意义。 |
| 6. | ( 3 ) the law and characteristic of electromagnetic transient process for the switching overvoltage in the electric network of power stations have been studied by analyzing the electromagnetic transient process of switching overvoltage in power station and specially approaching the surge overvoltage transferred from the switchgear station through power transformers
( 3 )通过分析厂站操作过电压的电磁暂态过程及特性，特别是对超高压开关站中的操作过电压通过升压电力变压器传递的传递过电压进行分析研究，研究了厂站电气网络中过电压的电磁暂态变化规律及特性。 |
| 7. | Based on the investigation of analysis methods for the overvoltage striking on rotating electric machines and its research status at home and abroad , the safety forecast theory and the analysis method for the switching overvoltage of large power stations are firstly presented based on the field - circuit analysis , and the transient field distribution and the insulation condition in the stator winding insulator stricken by the switching overvoltage in large power stations are studied and analyzed on line
本文在分析和总结国内外关于旋转电机过电压分析方法及其研究现状的基础上，首次提出了基于场路结合的厂站操作过电压安全预测理论和分析方法。本文研究了大型电站中的操作过电压冲击波在发电机定子绕组绝缘介质中暂态电场的实时分布状态，在线分析发电机的绝缘工作状况，搜索发电机内部可能突发绝缘事故的区域，预测发电机内部可能发生绝缘事故的故障点，并重点研究了大型发电机绝缘安全在线预测分析方法和建立了大型发电机绝缘安全评估模型。 |
| 8. | Therefore , the main contents and the creative results of this paper are described as follows : ( 1 ) the on - line safety forecast theory for switching overvoltage of large power stations based on the field - circuit analysis is presented by analyzing the electromagnetic transient for electric network of large power stations
针对该研究课题，本文的主要内容及创新性成果如下： ( 1 )通过对大型电站电气网络电磁暂态过程的分析研究，提出了一种基于场路综合分析的厂站操作过电压在线安全预测理论。 |
