The AVR R120 is a high-performance Automatic Voltage Regulator used in brushless generator systems to stabilize electrical output and protect your equipment. It regulates the generator’s voltage by controlling the exciter field current, ensuring reliable and consistent power under varying loads.
Where It Is Used
The AVR R120 is typically installed in:
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Brushless diesel generator sets
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Alternators such as Leroy Somer TAL040, TAL042 & TAL044 series
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Industrial, commercial and standby power applications requiring stable voltage output
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Large generators powering factories, offices, hospitals and telecom sites
Key Functions
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Voltage regulation: Maintains consistent output voltage as load changes, protecting sensitive equipment.
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Excitation control: Controls the generator’s excitation to manage output power and reduce fluctuations.
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Under-speed & sensing loss protection: Reduces voltage when speed drops or sensing signal is lost for safety.
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Soft start & stability adjustment: Smooth voltage build-up and fine-tuning of response to load changes.
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Reliable performance: Designed for long-term operation in industrial environments.
Find genuine AVR R120 units at Rixing Company Limited – your trusted supplier of generator and electrical spare parts in Kenya.















