power supply abnormality; power failure
Technical term for an abnormal state of the power supply, often used in equipment error messages or system logs.
The printer displayed 'Power Supply Abnormality' on its screen.
The system shut down automatically due to a power supply abnormality.
停電 refers to a general power outage or blackout, while 電源異常 specifically indicates an abnormal condition of the power supply unit or circuit, often internal to a device.
電源障害 is a broader term for power supply trouble or fault, whereas 電源異常 emphasizes the abnormal state itself, commonly used in error diagnostics.
Compound of 電源 (power supply) and 異常 (abnormality). The exact historical derivation is uncertain, but the word follows standard Sino-Japanese compounding patterns.