GAVR-20A / GAVR-12A / GAVR-8A UNIVERSAL AUTOMATIC VOLTAGE REGULATOR [LOCAL STOCK. READY TO SHIP WITHIN 24HRS. LOCAL SUPPLIER WARRANTY]

LOCAL SUPPLIER WARRANTY.LOCAL STOCK. READY TO SHIP WITHIN 24HRS.PRE-ORDER FOR BIG ORDER. PLEASE INQUIRY BEFORE ORDER.UNIVERSAL AUTOMATIC VOLTAGE REGULATOR GAVR-20A GAVR-12A GAVR-8ANAME: UNIVERSAL AUTOMATIC VOLTAGE REGULATOR, AVRPART NUMBER: GAVR-20A GAVR-12A GAVR-8APLEASE CHOOSE THE THREE TYPES OF AVR BASED ON YOUR NEED.GAVR-20AGAVR-12AGAVR-8ASPECIFICATION OF GAVR-20AType: Single-phase analog Automatic Voltage Regulator (AVR)Input (Sensing Voltage): 190–264 VAC (50/60 Hz ±5%)Field Output (DC): Max 90 VDC @ 8 A continuous; short-term peak up to ~10–12 AVoltage Regulation: ±1% under steady-state conditionsAdjustable Voltage Range: ±5% of nominal output voltage (via onboard potentiometer)Protection Features: Under-Frequency Roll-off (UFR)- Over-voltage protection- Loss-of-sensing protectionOperating Temperature: -40°C to +70°CTypical Generator Range: Up to ~20–25 kVA (depending on alternator design and excitation demand)Compatibility: Compatible with common brushless alternators (e.g., Stamford, Mecc Alte, Leroy-SomerDESCRIPTION OF GAVR-20AThe GAVR-20A is a high-current variant in the GAVR series of analog automatic voltage regulators, engineered for larger single-phase brushless alternators. It provides precise and stable output voltage control by dynamically regulating the DC excitation current delivered to the generator’s exciter stator winding based on real-time load and engine speed conditions.SPECIFICATION OF GAVR-12AType: Single-phase Automatic Voltage RegulatorInput Voltage (Sensing): 190–264 VAC (typically from generator output via auxiliary winding or main stator)Output (Field Supply): Max 90 VDC @ 5 A (continuous), peak up to 8 A for short durationFrequency Range: 50/60 Hz ±5%Voltage Regulation: ±1% (under steady-state conditions)Adjustable Voltage Range: ±5% of nominal voltage (via onboard potentiometer)Stability: Stable operation with resistive, inductive, and capacitive loadsProtection Features: Over-voltage protection, under-frequency roll-off (UFR), loss-of-sensing protectionOperating Temperature: -40°C to +70°CCompatibility: Designed for use with Stamford, Leroy-Somer, and other common brushless alternatorsDESCRIPTION OF GAVR-12AThe GAVR-12A is a self-contained analog AVR that provides precise voltage control for single-phase brushless alternators. It samples the generator’s output voltage and compares it to an internal reference. If a deviation is detected, it adjusts the DC current supplied to the exciter stator winding, thereby regulating the main rotor field strength and stabilizing the output voltage.This AVR is widely used due to its reliability, ease of installation, and cost-effectiveness in generator sets ranging from 1 kVA to approximately 12 kVA (depending on alternator design).SPECIFICATION OF GAVR-8AType: Single-phase Automatic Voltage RegulatorInput Voltage (Sensing): 190–264 VAC (typically derived from generator output via auxiliary or main winding)Output (Field Supply): Max 90 VDC @ 3 A (continuous), short-term peak up to 5 AFrequency Range: 50/60 Hz ±5%Voltage Regulation: ±1% (under steady-state conditions)Adjustable Voltage Range: ±5% of nominal voltage (via onboard potentiometer)Stability: Stable with resistive, inductive, and capacitive loadsProtection Features: Over-voltage protection, under-frequency roll-off (UFR), loss-of-sensing protectionOperating Temperature: -40°C to +70°CDimensions (approx.): 105 mm × 65 mm × 35 mmWeight: ~180 gTypical Application Generators up to ~8 kVA (depending on alternator design)Compatibility: Suitable for common brushless alternators (e.g., Stamford, Mecc Alte, etc.)DESCRIPTION OF GAVR-8AThe GAVR-8A is an analog, self-contained AVR optimized for smaller single-phase generator sets. It continuously monitors the generator’s output voltage and compares it to a stable internal reference. Any deviation triggers a proportional adjustment of the DC excitation current supplied to the exciter stator, which in turn controls the main field strength and stabilizes the output voltage.The GAVR-8A is commonly used as a direct replacement for OEM AVRs in portable and small stationary generators, offering a balance of performance, simplicity, and affordability.