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← ScienceWhich destructive outcome occurs in power transmission networks given increasing reactive power load?
A)Ferranti effect raises receiving voltage
B)Dielectric current causes cable disintegration
C)Corona discharge causes gradual insulation breakdown✓
D)Skin effect increases conductor resistance
💡 Explanation
Increased reactive power causes raised voltage stress; the resulting ionization uses `corona discharge` due to strong electric fields, which degrades insulating materials. This causes arcing; therefore, leading to gradual catastrophic failure rather than the Ferranti effect under light load.
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