Original Leroy Somer R150 AVR Automatic Voltage Regulator 6A Continuous Excitation 50/60Hz Jumper Adjustable Remote Voltage

Cross Reference Part Numbers

Adjustable Functions

1. VOLT: Onboard no-load rated output voltage precision fine tuning
2. STAB: Dynamic load transient response tuning to eliminate voltage hunting

• Reserved function terminals for external PF controller, synchronizer auxiliary control signal
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Environmental & Mechanical Parameters

• · Operating Temperature: -20℃ ~ +70℃; Storage Temperature: -40℃ ~ +80℃
• · Relative Humidity: ≤95% non-condensing
• · Vibration Resistance: 5G anti-vibration encapsulated design
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Wide Application Range

1. All Leroy Somer TAL series medium-power brushless diesel & gas generator sets
2. Marine auxiliary gensets, mining mobile power, data center UPS backup power, hospital critical emergency power supply
3. Original AVR burnout, severe voltage drift, unbalanced voltage under non-linear loads, slow voltage recovery under heavy load fault official replacement
4. High-end export Leroy Somer complete genset OEM matching, authorized generator aftermarket genuine spare parts stocking

Key Product Features

1. Genuine Leroy Somer Original Circuit, ±0.8% Ultra-Stable Voltage Regulation, Minimal Temperature Drift
   Factory precision calibration and full temperature cycle test, tiny voltage variation with ambient temperature change, perfectly handle harmonic distorted non-linear loads without voltage fluctuation or misoperation, far superior to generic aftermarket AVRs.
    
2. Single/Three Phase Dual Universal Sensing Input, Global Grid Compatible
   Supports single-phase 240V and three-phase 380/400/480V industrial voltage, 50/60Hz one-jumper switch, suitable for domestic and overseas cross-border generator projects without model replacement.
    
3. Isolated A1/A2 Remote Trim Terminals, Compatible With Synchronizer & PF Controller
   Independent isolated DC remote adjustment interface, can connect external automatic synchronizer, power factor controller to realize centralized unattended power station automatic voltage regulation, unique original design not available on cheap copies.
    
4. Built-In Surge Snubber Filter, Anti-Harmonic Interference For Rectifier & Inverter Loads
   Special RC absorption circuit suppresses voltage spike and harmonic distortion caused by battery chargers, inverters, rectifiers, effectively solve voltage instability and hunting problems under non-linear heavy loads.
    
5. Full Epoxy Encapsulated Vibration-Proof Structure, Marine & Mining Harsh Environment Certified
   Integrated potting insulation + large aluminum heat sink, dustproof, moisture-proof, salt mist resistant, withstand long-term high vibration engine room operation, meet marine generator anti-corrosion standards.
    
6. Fast 0.5s Transient Voltage Recovery, Excellent Heavy Load Impact Performance
   Advanced linear closed-loop control algorithm, ultra-fast voltage recovery after sudden full load switching, no voltage collapse or frequency fluctuation for medium-large power generators.
    

Common Equipment Failures Solved

• · Generator voltage drifts significantly with temperature and load change, obvious voltage hunting during load switching
• · Ordinary aftermarket AVR cannot stabilize voltage under rectifier/inverter non-linear loads, continuous voltage fluctuation
• · No isolated remote trim interface, unable to cooperate with automatic synchronizer for parallel grid-connected control
• · Slow voltage recovery after heavy load impact, large voltage dip affecting UPS and precision medical equipment
• · Non-original AVR mismatched excitation output parameters, easily overheat and burn under long-term full load operation