GB-110 AVR Automatic Voltage Regulator Replacement Spare Part Fits STC Three Phase Brush Diesel Generator Set

Cross Reference Part Numbers

Compatible Generator Models

Wide Application Range

• Industrial stationary diesel generator sets, factory standby emergency power units
• Marine ship-mounted brush generator power supply equipment
• Agricultural irrigation, farm emergency power generation units
• Construction engineering site temporary power generator sets
• Logistics, commercial, residential backup power supply equipment
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Key Product Features

1. Wide Compatibility for STC Brush Generators: Perfectly matches 10KW~200KW three-phase STC alternators, plug-and-play wiring layout consistent with original AVR, no complicated circuit modification required.
2. High Precision Voltage Regulation: Output voltage accuracy up to ±1%, effectively suppress voltage surge and drop caused by sudden load change.
3. Large Aluminum Heat Sink Design: Fast heat dissipation under long-time high-load operation, prevents module burnout from overheating.
4. Wide Working Input Range: Excitation voltage 20-100VDC, adapts to unstable residual voltage of different generator units during startup.
5. External Fine-Tuning Potentiometer: Supports ±10% manual voltage fine adjustment to meet different regional voltage standard requirements.
6. Strong Anti-Vibration & Anti-Interference Performance: Fully sealed circuit board with insulating glue coating, resists moisture, dust and electromagnetic interference.

Common Equipment Failures Solved

• Generator output voltage unstable, sharp voltage surge or drop when connecting or disconnecting loads
• Overvoltage fault burning household appliances, lighting bulbs and precision electrical equipment
• Undervoltage leading to equipment startup failure, motor weak operation and frequent shutdown
• Original AVR burnout causing no voltage output, generator no power supply
• Voltage drift after long running time, unable to maintain rated output voltage