Automatic Voltage Regulator for Generators Overview This automatic voltage regulator (AVR) delivers precise voltage control and robust protection for generator excitation systems. Engineered for long service life and consistent performance, it is suitable for a wide range of generators and gensets that accept 3phase input excitation. Key benefits Precise voltage regulation: Adjustment rate better than 0.5 percent ensures stable generator output under changing loads, reducing voltage fluctuation and protecting connected equipment. Builtin protections: Integrated low speed, over excitation, over voltage, over current, and LAM protections help prevent damage to the generator excitation system and reduce maintenance requirements. Durable components: quality capacitors and sturdy terminals improve electrical performance and longterm reliability. Wide compatibility: Designed for common 3phase PMG inputs and flexible induction detection options for use with many generator types. Easy deployment: Compact, professional construction and clear electrical interfaces simplify installation and replacement. Technical specifications Condition: 100 percent brand Input power: 170220 VAC, 3phase, 3 A (PMG) Induction detection: 190250 V VC, 2phase or 3phase Output: Voltage 120 VDC maximum; Current 307 A continuous; 6A10S instantaneous Protection functions: Builtin low speed, over excitation, over voltage, over current, LAM Adjustment rate: Better than 0.5 percent Applications and use scenarios Backup power for commercial facilities: Maintain steady generator voltage during fluctuating loads for lighting, HVAC, and critical systems. Remote or industrial generators: Provide reliable excitation control for workshop, agricultural, or construction site generators to reduce equipment stress and downtime. Telecommunications or utility standby sets: Help keep sensitive electronics within required voltage tolerances during emergency operation. Package contents 1 x Automatic Voltage Regulator Additional note The product may be as either the type or the old type. Units are sent randomly. Please be aware of this before ordering. Installation and compatibility tips Confirm your generator excitation input matches 170220 VAC 3phase PMG specifications and that induction detection mode (2phase or 3phase) is appropriate. For results, have installation performed by a qualified technician familiar with generator excitation systems. This AVR provides accurate voltage control and robust protection features for reliable generator operation without unnecessary complexity.