The design of motor turn-to-turn insulation measurement instrument based on LabVIEW;
基于LabVIEW的电机匝间绝缘测试仪的设计
Accident -easons of winding turn-to-turn insulation in a Hv motor are analyzed, protection measures and accident inspection methods are discussed.
论述了高压电机绕阻匝间绝缘故障发生原因,保护措施以及故障检测手段等,提出了提高匝问绝缘可靠性的办法。
The choosing methods for the turn-to-turn insulation structure of stator coil of high-voltage motor are described in this paper.
阐述了高压电机定子线圈匝间绝缘选择方法,通过电磁线性能对比,利用PVT值确定电磁线,同时介绍了两种换位线圈的匝间绝缘处理方法。
Study on aging characteristics for inverter-fed traction motor inter-turn insulation based on analysis of dielectric characteristic parameters;
基于介电特征参量分析的变频电机匝间绝缘老化特性研究
Discussion on inter-turn insulation of stator coils for high voltage motor;
高压电动机定子线圈匝间绝缘问题的探讨
Contrast aging tests are carried out on twisted pairs simulating inter-turn insulation and insulation to ground of inverter-fed traction motor under AC and square wave pulse conditions.
变频牵引调速电机匝间绝缘承受来自逆变器的连续高压脉冲方波的作用,其老化机理与工频正弦电压作用下具有很大差异。
The fault mechanism of interturn short-circuit in generator rotor windings and the theory of wavelet analysis are analyzed.
分析了发电机转子绕组匝间短路故障的机理,以及小波分析方法用于该故障的检测原理,将小波变换应用于突变信号的检测,提取其故障特征,以实现对转子绕组匝间短路故障的检测及故障点的定位。
States the general structure of rotor of turbogenerator and causes of interturn short-circuit in rotor wingings.
阐述了汽轮发电机转子的一般结构和转子绕组匝间短路的原因,主要对转子绕组匝间短路的磁场进行了数学分析,得出转子匝间短路时磁场信号的故障特征,为信号的后续处理提供了良好的依据。
Electromagnetic characteristic after interturn short-circuit fault occurs in generator rotor winding is analyzed and the feature of fault identification is obtained.
分析了发电机发生转子绕组匝间短路故障后的电磁特性,得到识别故障的特征,根据在确定状态下,发电机磁势保持不变,运用人工神经元网络方法,通过对故障样本的比较,诊断出转子绕组匝间短路故障。
Analysis of the turn-to-turn short circuit of turbo generator rotor windings and its treatment;
汽轮发电机转子匝间短路的分析及处理
Online Monitoring of the Rotor Turn-to-turn Short Circuit;
发电机转子匝间短路实时在线监测的应用
Research and design on 750 kV parallel connection reactor new theories of the turn-to-turn short circuit and single phase earthing protection;
750kV并联电抗器新原理的匝间短路及单相接地保护研制
Analysis of WDK-600 shunt reactor interturn protection;
WDK-600微机电抗器保护装置匝间保护原理分析
A novel shunt reactor interturn protection scheme is proposed based on zero-sequence compensated voltage magnitude comparison.
针对高压电抗器小匝数匝间保护目前存在的问题,提出了一种新的基于零序补偿电压幅值比较原理的电抗器匝间保护方案。
This paper is prepared for main purpose of studying and discussing relative protection problems occurred in physical operation of power plant including mainly the problems happened during operation of high frequency protection passages, those in respect of interturn protections of generator and those regarding backup protections of self-shunt excitation generator.
本论文主要针对发电厂实际运行中有关继电保护问题进行研究与探讨,主要包括高频保护通道运行中的问题、发电机匝间保护问题以及自并励发电机后备保护问题。
Rotor inter-turn short circuit fault diagnosis based on the change of amplitude and phase angle;
基于振幅和相角变化的转子匝间短路故障诊断研究
There are many techniques for checking and testing the rotor winding,especially the inter-turn short circuit fault,but most of them are not so perfect that it is difficult to identify the fault at its earlier stage.
大型发电机的转子绕组故障是比较常见的,而对转子绕组的检查特别是对绕组匝间短路的检测和判断方法虽然比较多,但大都不是很准确,在故障发生的初期很难判断出来。
A novel scheme is proposed to position the slot of distributed polar rotor where the inter-turn short circuit occurs.
提出了定位隐极式转子匝间短路槽位置的方案:以在线磁场探测线圈为基础,结合小波变换这一新兴的数字信号处理(DsP)技术,对所获取的故障信号进行处理,并运用Mallat算法在高频带宽中重构出信号的细节部分,以此对转子匝间短路造成的被测电势信号的奇异点进行准确定位, 诊断出故障槽;在具有高速浮点运算能力的DSP芯片上进行高效率编程,生成转子匝间短路在线监测系统。