• 电抗器故障电容器电抗器电压发生变化

    The voltage ratio of the capacitor and reactor will change when the fault occurs.

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  • 基于ATP仿真Matlab运算表明基于电容器电感器电压电抗器短路保护能够故障做出快速正确判断

    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.

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  • 介绍一种确定大型汽轮发电机转子短路位置方法,方法简单快捷实用可靠

    The paper a applied method, which can determine the position of rotor rum short-circuit point for large turbo generator easily and reliably.

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  • 定子绕组耐压测试

    Stator winding interturn compression tests.

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  • 绕组发热可能线圈短路引起

    Heating in the winding may be due to a short-circuit between the turns of the coils.

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  • 这样便能够铁芯缠绕许多导线,不会在线圈造成短路危险

    He was able to wrap many turns of wire around an iron core without danger of circuits between the turns.

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  • 本文提出了一种基于直接冲击电压电器绕组绝缘试验方法

    A test method for insulation between coils of electrical equipment based on directly impulse voltage are presented.

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  • 法国进口300MW发电机转子存在短路过电压保护问题。

    Rotors of 300mw generators imported from France are afflicted by problems concerning short circuit between windings and overvoltage.

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  • 基于多回路数学模型异步电动机定子绕组短路故障瞬变过程做了数字仿真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.

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  • 基于小波变换分析方法提出了基于定子三相电流相位对称检测定子绕组短路故障在线检测方法。

    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.

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  • 理想电力变压器电抗器其它电机绝缘材料

    It is an ideal slot, interturn and interlayer insulating material of dry type power transformers, reactors and other motors.

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  • 制造电抗器前,需要对电抗器过电压耐受进行评估,保证电压小于绝缘

    Before manufacturing the CLI, the over-voltage withstand ability of CLI should be evaluated to ensure the voltage between two coils less than the withstand value.

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  • 分析汽轮发电机发生转子绕组短路故障时电磁特性提出了基于分析的故障检测诊断方法

    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.

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  • 定子绕组短路异步电动机常见故障之一,因此研究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.

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  • 方法同步发电机定子绕组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.

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  • 分析汽轮发电机转子绕组短路故障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.

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  • 基于交流阻抗两极电压试验数据分析发现发电机转子绕组因存在造成短路故障原因

    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.

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  • 认为突发性振动原因运行中转子涡动短路线圈膨胀受阻引起不平衡

    It is concluded that the causes of sudden vibration are oil film whirl and thermal unbalance of generator rotor resulting from interturn short-circuit and hindered winding expansion etc.

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  • 应用领域适用电机变压器绝缘绝缘衬垫绝缘。

    Application: It is widely used in slot, phase and liner insulating of motor, transformer and so on.

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  • 介绍一种适合EMTP仿真程序变压器模型模型模拟变压器各种短路绕组对地短路;

    A transformer model compatible with the Electromagnetic Transients Program (EMTP) is presented, which can be used to simulate the turn to turn fault as well as also turn to ground fault.

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  • 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短路在线监测系统

    The integrated efficient diagnosis program at high-speed floating point DSP chip is made to produce a set of on-line inter-turn short circuit monitor system.

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  • 分析了电抗器保护短路灵敏度提出了自适应补偿功率方向方法

    Moreover, the sensitivity of turn-to-turn fault of shunt reactor protection was analyzed and a method of adaptive compensated zero sequence direction was presented.

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  • 介绍由冲击电压发生器峰值电压表组成用于电机磁极线圈绝缘试验设备,详细说明设备的工作原理及关键技术,给出了试验结果。

    The paper introduces a type of the turn-to-turn insulation test equipment including an impulse-voltage generator and a peak voltmeter for the electrical machine pole coil.

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  • 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进行转子短路故障信号。

    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.

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  • 提出基于负序功率方向并联电抗器故障保护原理

    The paper proposes a novel shunt reactors turn-to-turn fault protection that is based on negative-sequence power direction theory.

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  • 在场计算中,讨论了定子股线绝缘转子绝缘电磁场温度影响

    Calculating results with and without the consideration of insulation is compared and the effect of insulation to the air gap magnetic field and rotor temperature field is analyzed.

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  • 目前变压器后备保护对变压器故障灵敏度高。

    The transformer backup protection for phase- to- phase faults is not sensitive to the few turn turn- to- turn faults of transformer.

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  • 损坏情况大体分为两种一种定子屏蔽良好,定子绕组发生地、相击穿,线圈短路,过载造成绕组烧毁

    Damage be divided into two: one is a good set of stator shielding, and the occurrence of stator windings, the breakdown phase, the coil turn-to-turn short circuit, overload caused by burnt windings.

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  • 干式空心电抗器参数计算基础上,提出了用脉冲电压谐振进行电抗器绝缘缺陷检测

    Based on the parameter calculation of the air core reactor, this paper presents a pulse voltage resonance method to detect turn to turn insulation defects in air core reactors.

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  • 干式空心电抗器参数计算基础上,提出了用脉冲电压谐振进行电抗器绝缘缺陷检测

    Based on the parameter calculation of the air core reactor, this paper presents a pulse voltage resonance method to detect turn to turn insulation defects in air core reactors.

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