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Analysis of electromagnetic interference on control cables in the nuclear plant

机译:核电站控制电缆的电磁干扰分析

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Electromagnetic interferences on control cables may become serious in 500kV gas insulated substation (GIS) of a nuclear plant while the length of the cable increases. The currents on the shield of control cable caused by short circuit and lightning are calculated by means of method of moments (MOM) in the paper. Then the induced voltage across the port of cable is obtained by means of transfer impedance. Based on the calculated results, the influences of different factors, such as the length of control cable, the soil resistivity and the copper strip laid along with the control cable on the interference on control cable are studied. The conclusion in the paper is the foundation for designing of nuclear plant and selecting of electrical equipments.
机译:随着电缆长度的增加,在核电厂的500kV气体绝缘变电站(GIS)中,控制电缆上的电磁干扰可能会变得更加严重。通过本文中的矩量法(MOM)计算短路和雷电引起的控制电缆屏蔽层上的电流。然后,通过传输阻抗获得电缆端口两端的感应电压。根据计算结果,研究了控制电缆的长度,土壤电阻率以及与控制电缆一起敷设的铜带等不同因素对控制电缆干扰的影响。本文的结论是设计核电站和电气设备选择的基础。

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