corona discharge

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corona discharge

A scientist observes a faint corona discharge around a high-voltage electrode.

Definition
  1. Noun:
    • An electrical discharge accompanied by ionization of surrounding atmosphere: A visible, often faint, luminous discharge of electricity that occurs when a strong electric field ionizes the air or other gas surrounding a conductor. It is characterized by a faint glow, hissing sound, and the production of ozone.
Usage Examples
  • Noun:
    • The high-voltage power lines exhibited a faint blue corona discharge in the humid night air.
    • Corona discharge is a significant source of power loss in electrical transmission systems.
    • Scientists study corona discharge to understand electrical phenomena in the upper atmosphere.
Advanced Usage
  • "Corona discharge effect": The phenomenon or the consequences of a corona discharge.
    • The corona discharge effect can lead to radio interference and energy loss.
  • "To undergo corona discharge": To experience or be subject to this electrical phenomenon.
    • Sharp points on the electrode are more likely to undergo corona discharge.
Variants and Related Words
  • Corona (n): Often used as a shortened, informal term for "corona discharge" in technical contexts.
    • The engineer measured the corona from the antenna.
  • Electrical corona (n): A synonymous term.
  • Partial discharge (n): A broader category of electrical discharges that includes corona discharge.
  • St. Elmo's fire (n): A specific, naturally occurring type of corona discharge observed on pointed objects like ship masts during thunderstorms.
Synonyms
  • Brush discharge: A type of corona discharge that appears as tufts or brushes of light.
  • Glow discharge: A related electrical phenomenon involving ionization and luminescence in a gas, though often under different conditions (e.g., in a low-pressure tube).
Related Phrases
  • Corona loss (n): The energy wasted due to corona discharge in power lines.
    • Utilities aim to minimize corona loss to improve efficiency.
  • Corona ring (n): A device used to evenly distribute electrical field and suppress corona discharge on high-voltage equipment.
    • The insulator is fitted with a corona ring to prevent discharge.
corona discharge

A scientist observes a faint corona discharge around a high-voltage electrode.

Noun
  1. an electrical discharge accompanied by ionization of surrounding atmosphere

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