The AVR AS480 is a reliable Automatic Voltage Regulator designed to stabilize and control voltage output in brushless diesel generator alternators, especially those with Stamford®/Cummins-type alternators used in industrial and standby power systems. It continuously monitors generator output and adjusts excitation to deliver consistent, regulated voltage — protecting electrical loads and improving generator performance.
Where It Is Used
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Brushless diesel generator sets (50 kW to 500 kW range)
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Alternators with Stamford® P0 and P1 series exciters
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Industrial, commercial and standby power applications
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Systems requiring stable voltage under varying loads
Key Features
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Automatic voltage regulation: Maintains stable generator output voltage under load changes
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Broad input range: Works with single-phase sensing from ~100 V to 264 V AC
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Precise regulation: Typically ~±1 % voltage control accuracy
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Fast response: Rapid field current control for consistent performance
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Protection functions: Limits over-excitation and supports reliable operation
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Optional excitation boost support: Connects to Excitation Boost Systems (EBS) for enhanced short-circuit recovery
Ideal for stable power output in industrial and commercial generators — ensuring your equipment delivers safe and reliable electricity.
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