What question did this study set out to answer?

To evaluate how varied switching-surge waveforms, insulator configurations, and environmental factors influence the flashover performance of extra-high voltage line insulation.

June 1, 1963Electrical Engineering

How the switching-surge family affects line insulation

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JKJ. W. KalbGeneral Electric (United States)

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Implication

Experimental testing demonstrates the flashover response of line insulation under varied switching surges, indicating economic justification for surge-limiting equipment in transmission lines.

Key Points

To evaluate how varied switching-surge waveforms, insulator configurations, and environmental factors influence the flashover performance of extra-high voltage line insulation.
Conducted full-scale outdoor flashover experiments testing V-string and vertical insulator strings across multiple lengths, tower geometries, and surge waveshapes.
Evaluated the impact of environmental precipitation and preceding trapped charge (bias voltage) on rod-to-ground and conductor-to-ground flashover thresholds.
Determined insulation flashover thresholds as a function of surge waveshape, tower dimensions, precipitation conditions, and pre-existing trapped charges.
Derived performance curves for extra-high voltage transmission structures demonstrating the economic benefit of deploying switching-surge limiting apparatus.

Cite This Study

J. W. Kalb (1963) studied this question.

synapsesocial.com/papers/6a86d13ef87adc0a02ca1029 https://doi.org/10.1109/ee.1963.6541405

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Implication

Experimental testing demonstrates the flashover response of line insulation under varied switching surges, indicating economic justification for surge-limiting equipment in transmission lines.

How the switching-surge family affects line insulation

Discussion

Member takes

Implication

Key Points

Cite This Study

How the switching-surge family affects line insulation

Discussion

Member takes

Implication

Key Points

Cite This Study

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