Which outcome occurs when a distribution transformer's secondary circuit experiences a sustained harmonic current overload?

💡 Explanation

When a sustained harmonic current overload occurs, increased copper losses from skin effect cause localized winding hotspots due to uneven current distribution and increased I^2R losses. Therefore, localized hotspot formation results, rather than core saturation, arc flash from specific faults, or oxidation alone which require different, longer mechanisms.

• Which outcome occurs when a gallium arsenide Schottky diode experiences reverse bias at cryogenic temperatures?
• Which outcome occurs when insufficient magnetizing inductance exists within a power distribution transformer?
• Which outcome develops when single-phasing occurs in delta-connected three-phase induction motor under load?
• Which outcome occurs when the fuel injector transistor in an engine control unit (ECU) shorts closed?
• Which immediate consequence results from airflow separation across an aircraft wing?
• Which failure propagation occurs when multiple LEDs in series on a single string, used for signage, experience open-circuit failures?