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← TechnologyWhich consequence results when rapid temperature increase trips a power transformer's differential protection system?
A)Accelerated core lamination insulation breakdown
B)Immediate circuit breaker lockout activation✓
C)Increased winding eddy current losses
D)Harmonic current frequency amplification
💡 Explanation
A differential protection system trips breakers to isolate the transformer, because gas buildup or oil vaporization due to thermal events cause a rapid pressure increase that activates protective relays; therefore breaker lockout occurs, rather than gradual insulation failing.
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