Shielding Electrodes for AC & DC Line Insulators

Shielding electrodes are usually specified for AC lines to eliminate corona from insulator fittings, to grade the voltage potential along the string and limit radio interference from insulators as well as the effect of power arcs. In particular, grading electrodes are essential in AC to mitigate voltage drops/electric field on insulators, especially on the line side ... Read More >

Practical Considerations in Surge Protection

This article discusses Hydro One Network's approach to overvoltage protection as well as various mitigation strategies employed - from the routine to the creative. Surge arrester replacement strategy, inspection and failure analysis are also discussed ... Read More >

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