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What is Corona Discharge?

Encyclopedia
Field: Industry News
Electrical Engineer
10Year<
China

What is Corona Discharge?

Corona Discharge Definition

Corona discharge is defined as an electrical phenomenon where a high-voltage conductor ionizes the surrounding air, visible as a violet glow and audible as a hissing sound.

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Critical Disruptive Voltage

The voltage at which air around a conductor breaks down and becomes ionized, initiating the corona effect, is typically around 30 kV.

1f39a028-6bec-4a38-accd-72e6f9a21526.jpg Major Influences

Factors like atmospheric conditions, conductor condition, and spacing between conductors significantly impact the occurrence and intensity of the corona effect.

Reduction Strategies

  • Increasing the conductor size

  • Increasing the distance between conductors

  • Using bundled conductors

  • Using corona rings

Corona Effect on Energy Loss

The corona effect leads to power losses manifested as light, heat, sound, and ozone production, impacting the efficiency of high-voltage power systems.

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