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← ScienceWhich consequence results when dielectric strength fails in HVDC capacitor?
A)Uncontrolled thermal runaway occurs✓
B)Capacitance value slightly decreases
C)Increased equivalent series resistance
D)Oscillation frequency becomes slightly damped
💡 Explanation
Dielectric breakdown triggers thermal runaway because increased conductivity and heat generation overwhelm dissipation in Polymer capacitors; therefore the capacitor rapidly degrades, rather than only showing slight capacitance decrease, because positive feedback loops occur.
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