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← ScienceWhich risk increases when an electrical submersible pump motor in contact with highly conductive fluid experiences transient overvoltage?
A)Increased Joule heating in windings
B)Enhanced electromagnetic interference emission
C)Capacitive discharge across insulation✓
D)Elevated eddy current losses in stator
💡 Explanation
Capacitive discharge erodes insulation because transient voltages cause excessive electric field stress due to parasitic capacitance effects. Therefore, insulation breakdown is accelerated, rather than Joule heating. Induced current can still occur.
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