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首页> 外文期刊>IEEE Transactions on Power Delivery >Development of high gradient zinc oxide nonlinear resistors andtheir application to surge arresters
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Development of high gradient zinc oxide nonlinear resistors andtheir application to surge arresters

机译：高梯度氧化锌非线性电阻的研制及其在避雷器中的应用

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Zinc oxide nonlinear resistors with double the conventionalnreference voltage gradient, while improving their protectivencharacteristics and raising discharging capability, were developed andnapplied to tank-type surge arresters. On the basis of high-performancenelements, which provide good protective characteristics, a simulationnwas performed on the relation between the composition of the rawnmaterial acid the current-voltage (I-V) characteristics, consequentlynachieving a higher reference voltage gradient and an improved I-Vnnonlinearity. Moreover, the discharging capability was raised bynimproving the thermal distribution in the element when a current isnapplied and reducing their pores. This, when applied to surge arresters,npermitted the number of elements, with the same diameter as conventionalnelements, to be halved. As a result, the number of parts, size andnweight of the surge arrester were reduced and its structure wasnsimplified. A series of tank-type surge arresters using these elementsnfor 66-550 kV power systems was developed, tested in various waysnwithout problems, and applied in the field
机译：具有两倍于常规参考电压梯度的氧化锌非线性电阻，在改善其保护特性和提高放电能力的同时，已开发并应用于罐式避雷器。在提供良好保护特性的高性能元件的基础上，对原料酸的组成与电流-电压（I-V）特性之间的关系进行了仿真，从而获得了更高的参考电压梯度和改善的I-V非线性。此外，通过改善施加电流时元件中的热分布并减小其孔隙，提高了放电能力。当将其应用于电涌放电器时，可将直径与常规元件相同的元件数量减半。结果，减少了电涌放电器的部件数量，尺寸和重量，并简化了其结构。开发了一系列使用这些元件的储罐式电涌放电器，用于66-550 kV电力系统，以各种方式进行了测试，没有问题，并已在现场应用

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