Which outcome occurs when a power transformer's OLTC malfunctions during load transfer in a substation?

💡 Explanation

Voltage regulation instability occurs because the tap changer *fails to adjust voltage* during load changes; therefore, voltage deviates from the set point, rather than other effects which may occur in other failure scenarios. The mechanism is *automatic voltage regulation*.

• Which consequence results when PLC configuration error impacts coordinated robotic arm movement?
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• Which failure arises when excessive jitter affects PLC timing?
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• Which outcome occurs when harmonics resonate within power distribution systems containing capacitor banks?
• Which phenomenon limits high-frequency performance in piezoelectric actuators used for nanopositioning stages?