SGAVR-200KVA is a 3-phase automatic voltage stabilizer and transformer integrated machine designed to convert 400V input to stable 380V output. With ±15% input voltage compensation, ±1%–2% regulation accuracy, ≥98% efficiency and intelligent microcomputer control, it provides stable and reliable power for CNC machines, medical equipment, data centers and other sensitive industrial loads.
The 200kVA 3 phase voltage stabilizer serves critical functions in environments requiring consistent three-phase voltage levels. This solution is tailored for industrial facilities, commercial plants, and engineering projects that rely on dependable power conversion and voltage stabilization. By integrating both voltage regulation and transformation into one unit, the device efficiently manages fluctuating power conditions. Its target users include electrical engineers, procurement specialists, and facility managers seeking a compact and reliable 400V to 380V AVR to enhance the stability of their power distribution systems and minimize downtime risks.
This device combines a robust automatic voltage stabilizer with a precise transformer, delivering a controlled output voltage stabilized to within ±1% to ±2%, despite input variations up to ±15%. The 200kVA 3 phase voltage stabilizer incorporates intelligent microcomputer controls for continuous real-time monitoring and adaptive compensation, maintaining operational efficiency above 98%. It operates on a standard 3-phase 400V input and outputs a steady 380V voltage. Built with comprehensive protection features—overvoltage, undervoltage, short circuit, overload, and phase loss—and an IP20 rated enclosure, this machine ensures secure operation in challenging industrial environments.
The 200kVA 3 phase voltage stabilizer is implemented extensively in sectors demanding precise voltage control such as CNC machining, medical diagnostics, telecommunications, and semiconductor manufacturing. Its 400V to 380V AVR capability enables seamless integration into existing electrical infrastructure, delivering clean sine wave output optimal for sensitive electronic equipment. By consolidating functions traditionally performed by separate devices, this 200kVA voltage stabilizer manufacturer’s product simplifies installation, reduces wiring complexity, and lowers overall system costs, improving ROI for large-scale utility and manufacturing operations.
Designed as a unified unit combining voltage stabilization and step-down transformation, this 200kVA 3 phase voltage stabilizer optimizes spatial and operational efficiency. The integration reduces footprint and wiring requirements, offering streamlined system architecture compatible with standard industrial electrical panels. Its intelligent control system allows dynamic voltage correction and durable protection mechanisms are embedded to safeguard against common electrical faults. This compact yet rugged design aligns with demands for reliability without compromising ease of system integration, fulfilling procurement criteria set by engineers seeking dependable 400V to 380V AVR technology.
With a voltage regulation accuracy tightly maintained within ±1% to ±2%, the 200kVA 3 phase voltage stabilizer delivers exceptional power quality necessary for equipment sensitive to voltage fluctuations. It boasts an efficiency rating greater than 98%, minimizing energy losses during voltage conversion. The user interface and microcomputer control simplify configuration, enabling continuous voltage monitoring and automated adjustment for evolving load conditions. This results in enhanced machinery uptime and compliance with operational standards. As a product from a recognized 200kVA voltage stabilizer manufacturer, it supports long service life with comprehensive protective features reducing maintenance needs and operational interruptions.
The SGAVR-200KVA combines an automatic voltage stabilizer and step-down transformer in one integrated unit, providing both voltage regulation and voltage conversion for industrial and commercial applications. It accepts 3-phase 4-wire 400V input and delivers a stable 3-phase 4-wire 380V output, making it suitable for equipment that requires stable and correctly matched operating voltage.
The SGAVR-200KVA uses a dual CD-type silicon-steel core ferromagnetic resonance stabilization system. It automatically compensates for input voltage fluctuations within ±15%, maintaining output voltage regulation accuracy of ±1%–2%. The continuous regulation principle provides a pure sine wave output without switching transients.
Instead of installing a separate voltage stabilizer and transformer, the SGAVR combines both functions in one machine. The transformer section uses electromagnetic induction to step down the stabilized 400V input to 380V output, helping reduce installation space, wiring requirements and system complexity.
A microcomputer-based control system continuously monitors input voltage, output voltage and load conditions. The system automatically adjusts the compensation circuit or winding configuration when the input voltage changes. It also provides overvoltage, undervoltage, overload, short-circuit and phase-loss protection, with visual status indicators. Manual voltage regulation is available for commissioning and maintenance.
With an efficiency of ≥98% at full load and an input power factor of ≥0.95, the SGAVR-200KVA is designed to reduce energy losses during operation. Its output features pure sine wave performance with THD below 1%, helping provide clean power for sensitive electrical and electronic equipment.
| Parameter | Specification |
|---|---|
| Rated Capacity | 200 KVA |
| Phase | 3 Phase |
| Input Voltage | AC 400V, 3-phase 4-wire |
| Output Voltage | AC 380V, 3-phase 4-wire |
| Input Voltage Range | ±15% |
| Voltage Regulation Accuracy | ±1%–±2% |
| Frequency | 50Hz / 60Hz |
| Efficiency | ≥98% |
| Input Power Factor | ≥0.95 |
| Response Time | <1 second |
| Overload Capacity | 150% for 10 seconds; 3× rated load current momentarily |
| Insulation Class | Class F |
| Protection Degree | IP20, Indoor Use |
| Operating Temperature | –20°C to +45°C |
| Design Life | 20 Years |
The 200KVA AVR stabilizer and transformer integrated machine is designed for applications where both voltage stabilization and voltage conversion are required, including:
The unit features comprehensive protection against overvoltage, undervoltage, overload, short circuit and phase loss. The modular microcomputer control design facilitates troubleshooting and maintenance. The product uses F-class insulation and is designed for continuous-duty operation with a 20-year design life.
Each unit undergoes initial functional and electrical safety testing before shipment, followed by a 48-hour continuous aging test. Export-grade wooden case packaging is used for long-distance transportation. The product is covered by a 1-year warranty with lifetime maintenance support, subject to the manufacturer's warranty terms.
6.What voltage ranges does the 200kVA 3 phase voltage stabilizer support?
Our 200kVA 3 phase voltage stabilizer is designed for input voltages within ±15% of 400V and outputs a stable 380V 3-phase supply. We also offer customized voltage configurations to meet specific industrial requirements.
7.Can you customize the 400V to 380V AVR unit for different industrial applications?
Yes, we tailor the 400V to 380V AVR specifications including input, output voltage, and voltage compensation range based on your project's power and equipment demands.
8.What installation considerations are important for the SGAVR-200KVA integrated machine?
The compact design simplifies installation by combining stabilizer and transformer, reducing wiring complexity and space. We recommend indoor installation with IP20 protection in temperature ranges from –20°C to +45°C for optimal operation.
9.How do you ensure the long-term reliability of the 200kVA voltage stabilizer manufacturer’s product?
We build our integrated machines with overvoltage, undervoltage, overload, short circuit, and phase loss protections, plus high-efficiency components rated for 20 years of continuous use. This ensures dependable performance in industrial environments.
