电抗器匝间故障时,电容器与电抗器电压比将发生变化;
The voltage ratio of the capacitor and reactor will change when the fault occurs.
提出了基于负序功率方向的并联电抗器匝间故障保护原理。
The paper proposes a novel shunt reactors turn-to-turn fault protection that is based on negative-sequence power direction theory.
目前变压器相间后备保护对变压器匝间故障的灵敏度不高。
The transformer backup protection for phase- to- phase faults is not sensitive to the few turn turn- to- turn faults of transformer.
基于ATP的仿真和Matlab的运算表明基于电容器电感器电压比的电抗器匝间短路保护,能够对匝间故障做出快速而正确的判断。
ATP simulation and MATLAB calculation show that the voltage ratio protection against inter-turn fault of reactor can make correct judgement to this kind of fault quickly.
基于多回路数学模型,对异步电动机定子绕组匝间短路故障瞬变过程做了数字仿真,并完成了相关物理实验。
The transient numeric simulation and relevant experiments of stator winding inter-turn short circuit fault of asynchronous motor are conducted using multi-loop mathematic model.
定子绕组匝间短路是异步电动机常见故障之一,因此研究其检测方法具有重要意义。
It is of great significance to investigate and improve the detection method of stator winding inter-turn short circuit fault in induction motors.
基于交流阻抗和两极电压试验数据的分析,发现发电机转子绕组因存在铜渣而造成匝间短路故障的原因。
Based on the analysis of AC impedance and two poles voltage test data, the reason of turn - to - turn short circuit fault caused by having copper dregs in generator rotor winding was found.
分析了汽轮发电机转子绕组匝间短路故障和转子不平衡故障时定、转子径向振动特征。
The generator vibration characteristics caused by rotor winding interturn short circuit fault and imbalance fault are analyzed respectively.
分析了汽轮发电机发生转子绕组匝间短路故障时的电磁特性,提出了基于小波分析的故障检测与诊断方法。
Electromagneic characteristic of the interturn short circuit in turbo-generator rotor windings is analyzed. And a method of fault detection and diagnosis based on wavelet transform is presented.
该方法为同步发电机定子绕组匝间短路故障诊断提供了新的思路。
This method provides a new idea for the detection of the internal stator winding fault in synchronous generator.
基于小波变换的分析方法,提出了基于定子三相电流之间相位对称度检测的定子绕组匝间短路故障在线检测新方法。
Based on wavelet transform, a novel on-line detection method is presented, which is based on the detection of symmetry degree among the stator three-phase line currents phases.
随后介绍采用基于有源电阻电桥进行转子接地短路故障监测与采用微分探测法进行转子匝间短路故障信号。
Then it introduces the rotor earth fault monitoring based on the method of resistance bridge with source, and the interturn short circuit fault monitoring in generator rotor based on stator coil.
对汽轮发电机发生转子绕组匝间短路故障后,电磁特性和电气参量的变化进行了分析。
The electromagnetic characteristic and the relevant electrical parameters are analyzed when inter turn short-circuit fault on generator rotor windings occurs.
对转子绕组不同位置发生不同程度的匝间短路故障时,转子磁势的变化情况进行了详细的推导。
The variation of rotor magnetic potential has been analyzed detailed when the different places of rotor winding happened the different deep inter turn short circuit fault.
目前,汽轮发电机转子绕组匝间短路故障的检测方法有很多,其中探测线圈法是有效且常用的一种。
At present there are many methods to detect the inter-turn shorted-circuit fault of turbo-generator rotor windings. The air-gap detection coil monitoring method is effective and used widely.
以试验所用的故障模拟发电机为例,分别对发电机不对称运行和定子绕组匝间短路进行了故障特征计算。
The fault characteristics of stator winding inter-turn short -circuit and asymmetrical operation of generator are calculated for the fault simulation generator.
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。
Accident -easons of winding turn-to-turn insulation in a Hv motor are analyzed, protection measures and accident inspection methods are discussed.
提出了利用磁网络模型来模拟发电机转子绕组匝间短路故障的方法;
The method that uses the reluctance network model to imitate the generator rotor inter turn short circuit fault has been put forward.
文中论述了匝间短路故障产生的原因、处理方案、新工艺的采用及关键工艺的实施等。
This paper describes the reason of interturn short circuit, the treatment and new process employed.
文中论述了匝间短路故障产生的原因、处理方案、新工艺的采用及关键工艺的实施等。
This paper describes the reason of interturn short circuit, the treatment and new process employed.
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