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首页> 外文期刊>American journal of applied sciences >ELECTRIC FIELD IN POLYMERIC ISOLATORS OF THE 500KV VOLTAGE CLASS | Science Publications
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ELECTRIC FIELD IN POLYMERIC ISOLATORS OF THE 500KV VOLTAGE CLASS | Science Publications

机译：500kV电压级的聚合物隔离器中的电场|科学出版物

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摘要

> This study presents a detailed study of the electric field in polymeric isolators of the 500kV voltage class through modifications in the dimensions of the anti-corona ring. That is, by varying the three dimensions of the anti-corona ring: height (h), distance of the anti-corona ring conductor (r) and the diameter of the anti-corona ring conductor (d); it was possible to observe the electric field distribution in a polymeric isolator of the 500 kV voltage class. Such voltage class in currently applied to prevent loss of energy in long transmission lines. However it faces disadvantages, like the problem of the increased corona effect, which besides generating electromagnetic noise, increases the level of the electric field around the conductors and the isolator. The corona effect is responsible for an electric energy loss that is in the order of hundreds of kW/km in TLs and generates noises that reach up to 65dBm. This effect occurs when the air?s critical value is exceeded, causing the electrons to collide with air resulting in the formation of ozone which is a major cause of corrosion in isolators. In this study, this issue is addressed and it is outlined sizing measures for manufactoring the anti-corona ring.
机译：本研究本研究介绍了通过抗电晕环尺寸的修改来对500kV电压等级的聚合物隔离器中的电场的详细研究。也就是说，通过改变抗电晕环的三个尺寸：高度（h），抗电晕环导体（R）的距离和抗电晕环导体（d）的直径;可以观察到500kV电压等级的聚合物隔离器中的电场分布。目前应用的这种电压等级以防止长传输线的能量损失。然而，它面临缺点，就像外电晕效应的问题一样，除了产生电磁噪声之外，增加导体和隔离器周围的电场的水平。电晕效应负责TL中数百千瓦/ km的电能损失，并产生高达65dBm的噪声。当超过空气临界值时发生这种效果，使得电子与空气碰撞，导致臭氧形成，这是分离器中腐蚀的主要原因。在这项研究中，解决了这个问题，并概述了制造抗电晕环的规模尺寸措施。

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