excitation loss protection是什么意思

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This paper introduces the operation situation of WFBZ type microcomputer based protection of the Wangting power plant 300MW generator transformer unit, and points out some arguments about generator transformer protection such as rotor one point earth protection, rotor two points earth protection ,stator circle short circuit protection,generator excitation loss protection and impedance protection.

介绍了由华东电力设计院设计的望亭发电厂 30 0MW发变组WFBZ - 0 1型微机保护的一些投运情况 ,对大型发电机转子一点接地保护、转子二点接地保护、定子匝间短路保护、失磁保护、低阻抗保护及主保护等进行分析并提出了自己的一些看

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。