Definition

1. Noun (Physics / Electrical Engineering):
   • Surge Voltage / Overvoltage: A sudden, brief, and abnormally high increase in electrical potential (voltage) that far exceeds the normal operating level in a circuit or system. This transient spike can damage or destroy connected electrical equipment and machinery.

Usage Examples

• Noun:
  • Sét đánh có thể gây ra siêu điện thế trên đường dây truyền tải. (A lightning strike can cause a surge voltage on the transmission line.)
  • Cần lắp thiết bị chống siêu điện thế để bảo vệ máy tính. (It is necessary to install an overvoltage protection device to safeguard the computer.)
  • Siêu điện thế đột ngột đã làm hỏng động cơ. (A sudden voltage surge damaged the motor.)

Advanced Usage

• The term is technical and primarily used in contexts related to electrical power systems, electronics, and equipment protection.
• It describes a transient event, not a sustained high voltage condition.

Variants and Related Words

• Điện áp đỉnh (n): Peak voltage.
• Xung điện áp (n): Voltage pulse/spike (often a shorter, sharper increase than ).
• Quá áp (n): Overvoltage (a more general term that can include both transient surges and sustained overvoltage).

Synonyms

• Voltage spike
• Power surge
• Transient overvoltage

Related Technical Terms

• Thiết bị chống sét / Chống xung (n): Surge protector / Surge arrester (a device designed to limit surge voltage).
• Hư hỏng do quá áp (n): Overvoltage damage.