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Miss trip analysis of stator winding grounding fault due to false PT secondary connection PT二次误接线导致的定子接地保护拒动分析
stator winding grounding 定子接地
Stator winding grounding fault 定子接地保护
The reason of end fingers loosening and winding grounding in stator core of hydr ogenerator were introduced in this paper. 本文介绍了压指松脱及绕组发生接地的原因，指出了事故的处理方法，并提出了改进建议。
This model can be used to possess the distributed capacitance of stator winding to ground, the magnetic saturation and eddy effect. 将多回路方法与电磁场有限元计算相结合,建立了发电机的多回路有限元耦合数学模型,其突出优点在于:可以计及定子绕组对地分布电容,磁路饱和以及涡流等因素,因而适用于发电机定子单相接地故障暂态分析。
The wound-rotor winding has the same form as the stator winding. 线绕型绕组和定子绕组相同。
Usage: suitable for automatic binding of AC motor stator winding end. 用途：适用于交流电机定子绕组端部自动绑扎。
Taking the ground fault of stator winding of 50 MW dual internal water cooler turbo-generator for example,the diagnosis method for ground fault of generator stator winding is discussed. 以诊断一台50MW双水内冷汽轮发电机定子绕组接地故障为例,探讨发电机定子绕组接地故障的诊断方法。
Abstract: Taking the ground fault of stator winding of 50 MW dua l internal water cooler turbo-generator for example, the diagnosis method for ground fault of ge nerator stator winding is discussed. 摘要：以诊断一台50MW双水内冷汽轮发电机定子绕组接地故障为例，探讨发电机定子绕组接地故障的诊断方法。
The stator windings are treated with VPI. 采用热套工艺，将铸铝转子固定在轴上。
Be suitable for coil winding of stator winding and transformer winding which need wire arrangement. 适用定子线圈,变压器线圈需排线的线圈绕制。
Familiar with the manufacturing process of stator winding and pole, know manufacturing flow of correlative parts. 熟悉定子绕组和磁极部件的制造工艺，了解相关零部件的制造流程；
Abstract: The design of the stator winding embedding machine and new embedding technique for the production practice. 文摘:为满足电动机生产实际的需要，提出定子绕组的绕线和嵌线新工艺，并据此设计出定子绕组嵌线机。
In hybrid stepper motor, the back EMF of stator winding is function of rotor position, continuous rotor position is obtained from thefunction. 就混合式步进电机而言，定子绕组的反电势是转子位置的函数，从而可以解算出连续的转子位置信息。
The simulation mainly aims at the rotor bar breaking and the inter-turn fault of the stator winding, and also the result of simulation is analyzed. 由仿真结果来看，不论是转子断条，还是定子绕组匝间短路，该模型均有一定的准确度，为异步电动机内部故障的分析和检测提供了一种仿真工具。
Acording to fault condition of stator winding,stator coils are combined into stator connected sets by using connection matric. 根据不同的定子绕组故障，使用联接矩阵将单个定子线圈组合为相应的定子绕组。
To improve efficiency of winding and inlay, the machine for integration of stator winding and inlay was designed, and the basic working principle. 为了提高绕线、嵌线功效,设计了定子绕组的绕线和推入式嵌线一体机,并介绍了其基本工作原理。
The stator winding is connected directly to the 60 Hz grid while the rotor is fed at variable frequency through the AC/DC/AC converter. 定子绕组是直接连接到60赫兹的网格，而转子是美联储在变频通过交流/直流/交流转换器。
excitation winding grounding fault of generator 发电机励磁回路接地故障
As the asymmetry a nd a shorted loop of stator winding are caused by a internal fault,the conventio nal transformation can not directly be used. 定子绕组发生故障后，绕组对称性遭到破坏，传统的变换方法难以应用；若按各支路列写方程，则方程维数过高，而且收敛也比较困难。