A 3kVA (3000 Volt-Amperes) Automatic Voltage Regulator (AVR) with a 3000W power rating is a single-phase device crucial for protecting electronics. It converts the 3kVA rating to a 3000W true output power, though some models may have a slightly lower wattage capacity.
It automatically corrects wide input voltage fluctuations (e.g., 160V to 260V) to maintain a stable output, typically 220V±3%. Employing either servo motor or relay technology, it offers essential protection against over-voltage, under-voltage, overload, and short-circuits, often including a configurable power-on delay for surge suppression. It is ideal for powering appliances, computers, and small office equipment.