Simulation of Lightning Performance for EHV Cable Junction Steel Platform
Surge arresters are required to prevent damage to the junctions in overhead and underground hybrid transmission systems due to overvoltage transients, and the grounding model is a key factor affecting arrester performance. The popular transient analysis tool, EMTP/ATP, is used to search for the best connecting method by simulating the responses of different grounding models to a typical lightning strike at the junction of an overhead line and underground cable in an EHV transmission system. An experimental lightning impulse test is performed to validate the simulated data. The simulation results could be used as guide to find an effective design for line arrester grounding models at the connection station.
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Document Type: Research Article
Publication date: 01 August 2012
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