为此,建议采取以下的方法进行电网三相短路电流计算。
Therefore, it is advisable to take the following method for grid three-phase short-circuit current calculation.
针对三相短路电流产生的电动力进行分析,经过受力分析,瞬间较高的电动力对户外柱上真空断路器的影响很大。
The three-phase short circuit currents of bulk electric power system are very high, and the high currents do harm to the working of the system.
本文首先根据系统发生三相对称短路时的短路电流,给出了三相矩形母线短路电动力的解析表达式。
The expression for short-circuit electrodynamic force of rectangular bus bars on the basis of the calculation of three-phase symmetry short-circuit current was fi.
为此,简单介绍了一套较完整的仿真系统,其中主要介绍了发电机组三相短路后电压、电流数学建模过程及图形化显示方法。
The paper mainly introduces a kind of stimulatior, It emphasizes on the mathematical mode! of three phase short circuit breakdown and its showing methods.
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.
铜母线和母线支柱应能承受50千安及以上的三相对称短路电流所产生的电应力。
Copper busbar and busbar column should be able to sustain electric stress generated by electric current of three-phase symmetrical short-circuit of 50 kiloampere and above.
结果表明了PWM-FCL不但可以快速有效地限制住短路电流,并且在系统发生三相不对称故障时,可以保证故障线路非故障相以及非故障线路的正常运行。
The obtained results show that the PWM-FCL can limit the fault current quickly, and the unfaulted phase(s) and unfaulted line(s) will keep stable operation state when an asymmetry fault occurs.
在详细分析相电流差突变量选相基本原理的基础上,对传统相电流差突变量选相元件三相短路故障判据进行了改进。
Based on the detailed analysis of basic principle, the traditional three-phase short-circuit criterion of phase selection element based on sudden-change of phase current differential is improved.
介绍iec三相交流系统短路电流计算方法的重点和短路电流热效应计算,并用例题介绍其具体使用情况。
The key points of the iec method for calculating the short circuit current and its heat effect of a three-phase current system are described and elucidated specifically by examples.
介绍iec三相交流系统短路电流计算方法的重点和短路电流热效应计算,并用例题介绍其具体使用情况。
The key points of the iec method for calculating the short circuit current and its heat effect of a three-phase current system are described and elucidated specifically by examples.
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