Voltages beyond the ordinary, known as overvoltages, impact power systems directly or indirectly.
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Switching high-voltage transmission lines is essential, yet it triggers surges or transients.
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Overvoltages arise from various sources, such as switching surges, insulation failure, arcing ground, and resonance.
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Internal causes, like switching surges during circuit operations, contribute to overvoltages.
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Insulation failure, often due to conductor grounding, is a prevalent cause of overvoltages.
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In the past, leaving power line neutrals ungrounded led to arcing ground issues.
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Resonance occurs when inductive and capacitive reactances match, causing high voltages.
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Lightning-induced surges pose a significant threat, exceeding the magnitude of internal causes.
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Lightning, a potent natural phenomenon, results from electrical discharge in the atmosphere.
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Wrapping up our journey through overvoltages in power systems, it's evident that a multifaceted approach is essential.
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