Automatic Voltage Correction
The stabilizer monitors the output voltage and uses servo motor control to adjust the variable transformer when voltage correction is required.
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AVS Series 3-Phase Servo Automatic Voltage Stabilizer (6–1000kVA)
3-Phase Servo Automatic Voltage Stabilizer for Industrial Voltage Regulation
The AVS Series 3-Phase Servo Automatic Voltage Stabilizer provides automatic voltage regulation for three-phase electrical systems, with 6kVA to 1000kVA configurations designed to manage incoming voltage fluctuations.
The AVS Series is a three-phase Automatic Voltage Stabilizer (AVS) designed to continuously monitor variations in incoming electrical voltage and make corrections to maintain the required output voltage. Its servo-controlled regulation system is suitable for electrical machinery, production equipment and other applications where voltage stability is an important operating consideration.
Available in capacities from 6kVA to 1000kVA, the range uses an electronic control circuit, servo motor and variable transformer arrangement to regulate voltage. The system also incorporates monitoring instruments and protection functions, with different configurations available according to the selected model.
SYSTEM FEATURES
Automatic Voltage Regulation and Protection
The AVS Series combines servo-controlled voltage correction, electronic sensing and electrical protection functions to support three-phase power requirements.
Three-Phase Power Regulation
Designed for three-phase input and output, the system uses a servo-controlled transformer arrangement for individual phase regulation.
Voltage Protection Functions
The published protection functions include overvoltage and undervoltage detection, phase-loss sensing, overcurrent protection and over-temperature protection.
Electrical Status Monitoring
Output voltmeters, ammeters and phase indicators provide operating information for checking electrical conditions and stabilizer performance.
Control and Maintenance
The brochure describes solid-state control circuitry and plug-and-play control PCBs, alongside auto-manual operation facilities on applicable models.
Configuration Options
Special input and output voltage ranges may be requested. An optional built-in Surge Protection Device (SPD) is also described in the product brochure.
TECHNICAL DETAILS
AVS Series Technical Specifications
The following specifications provide an overview of the three-phase servo voltage stabilizer range. Model-specific sizes, weights and arrangements should be checked against the original technical documentation.
| Product Series | AVS Series |
|---|---|
| Product Type | 3-Phase Servo Automatic Voltage Stabilizer |
| Capacity Range | 6kVA – 1000kVA |
| Configuration | 3-Phase Input / 3-Phase Output |
| Input Voltage | 415VAC (+15%, -30%), 3-Phase + Neutral |
| Input Voltage Range | 290–477VAC |
| Output Voltage | 400VAC ±1.5% |
| Internal Output Adjustment | 360–440VAC |
| Nominal Frequency | 50Hz |
| Power Factor | 1.0 |
| Voltage Correction Response | 50–70ms/V |
| Efficiency | Greater Than 95% |
| Waveform | Sine Wave |
| Control Configuration | Auto Transformer with Servo Motor for Individual Phases |
| Monitoring | Output Voltmeter, Ammeter and Phase Indicators |
| Ambient Operating Temperature | 0°C to 45°C |
| Operating Humidity | Up to 95%, Non-Condensing |
AVAILABLE CAPACITIES
3-Phase Voltage Stabilizer Capacity Range
The AVS Series includes multiple power ratings for different equipment and machinery requirements. The following are examples of capacities listed in the original product brochure.
6kVA
15kVA
30kVA
60kVA
100kVA
250kVA
Additional capacities, including higher-rated configurations up to 1000kVA, are listed in the technical brochure. Refer to the model specifications for the applicable dimensions and configurations.
OPERATING PRINCIPLE
How Servo Voltage Regulation Works
The stabilizer uses electronic sensing circuitry to compare the actual output voltage with the preset reference value. When a voltage difference is detected, the control system produces a correction signal to operate the servo motor.
The servo motor adjusts the brush position of the variable transformer until the required output voltage is restored. This automatic correction process supports regulated voltage output as incoming supply conditions vary.
APPLICATIONS
Industrial and Commercial Applications
The AVS Series is presented for electrical equipment and machinery used across production, processing, laboratory and communication environments where incoming voltage fluctuations require regulation.
CNC Machinery
Production Line Systems
Industrial Robot Systems
Printing and Textile Machinery
Medical and Laboratory Equipment
Telecommunications and Broadcasting
ORIGINAL PRODUCT DOCUMENTATION
AVS Series Product Brochure and Technical Details
The original product brochure provides additional information on the three-phase stabilizer range, operating principle, technical configurations and available models.
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PRODUCT HIGHLIGHTS
What You Get
Servo-controlled automatic voltage regulation for three-phase electrical systems.
Multiple power ratings between 6kVA and 1000kVA.
Voltage monitoring instruments and documented electrical protection functions.
Model-dependent control arrangements and additional voltage or surge protection options.
VOLTAGE STABILIZER ENQUIRY
Explore the AVS Series 3-Phase Voltage Stabilizer
Discuss your machinery load, incoming voltage conditions and capacity requirements to identify a suitable three-phase servo voltage stabilizer configuration.
Inquiry - AVS Series 3-Phase Servo Automatic Voltage Stabilizer (6–1000kVA)
