The 30 kVA Three Phase Variable Voltage Regulator, also called an industrial AC voltage regulator, three-phase power stabilizer, or adjustable voltage transformer, is a high-performance solution for industrial power systems. Designed for 380V applications, this device provides precise voltage regulation, stable output, and reliable performance for a wide variety of industrial, commercial, and laboratory applications.
Manufactured by China’s leading industrial power solutions provider, PowerNex, this product supports global sales in countries such as USA, Canada, Brazil, Argentina, Australia, Indonesia, Malaysia, Philippines, UAE, Saudi Arabia, Russia, Germany, France, and more. It is ideal for factories, production lines, machinery, laboratories, testing facilities, and other environments that require dependable three-phase voltage regulation.
This transformer is part of a full power range from 5 kVA to 500 kVA, offering customizable input/output voltages, enclosures, and control options, making it a flexible solution for diverse industrial environments.
Key Features
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Three-Phase Industrial AC Voltage Regulation
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Maintains consistent voltage output to protect equipment from voltage fluctuations.
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Supports variable voltage adjustment, allowing operators to fine-tune output voltage.
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Reduces equipment downtime and extends service life of industrial machinery.
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High-Performance Variable Voltage Transformer
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Rated at 30 kVA, suitable for medium to heavy industrial loads.
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Designed for continuous operation under demanding industrial conditions.
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Ensures low harmonic distortion, high efficiency, and clean power output.
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Wide Range of Applications
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Industrial factories: Voltage stabilization for production lines and heavy machinery.
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Laboratories and testing equipment: Precise voltage control for sensitive instruments.
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Commercial facilities: Stable power supply for elevators, pumps, and HVAC systems.
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Renewable energy systems: Integration with solar and wind systems requiring AC stability.
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Customizable and Flexible Design
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Available in 5–500 kVA range to meet diverse power requirements.
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Custom input/output voltage, enclosure, and control options.
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Optional features: digital display, remote monitoring, automatic voltage adjustment, overload protection.
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Durable and Reliable Construction
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High-quality copper windings, steel laminations, and insulation materials.
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Resistant to vibration, dust, and industrial heat.
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Requires minimal maintenance, reducing operational costs.
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Technical Specifications
| Parameter | Specification |
|---|---|
| Power Rating | 500 kW (Custom range: 315 kW – 800 kW) |
| Product Type | Variable Frequency Drive (VFD) / Variable Speed Drive (VSD) |
| Input Voltage | Three Phase 380V / 400V / 415V (±15%) |
| Output Voltage | 0 – Rated Input Voltage |
| Input Frequency | 50 Hz / 60 Hz |
| Output Frequency | 0 – 600 Hz |
| Control Mode | V/F Control, Sensorless Vector Control (SVC), Closed Loop Vector (optional) |
| Overload Capacity | 150% for 60s / 180% for 10s |
| Efficiency | ≥ 98% |
| Cooling Method | Forced Air Cooling (Liquid Cooling Optional) |
| Protection Level | IP20 / IP21 (IP54 Cabinet Optional) |
| Communication | Modbus, Profibus, CANopen, Ethernet (optional) |
| Standards | IEC, CE, ISO, RoHS |
| Installation | Floor Standing / Cabinet Mounted |
| Applications | Pumps, Fans, Compressors, Conveyors, Crushers, Heavy Industry |
Advantages
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Reliable Power Supply
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Maintains consistent voltage levels to prevent equipment damage.
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Ideal for industrial environments with unstable grid power.
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Flexible Application Scenarios
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Can be integrated into factories, laboratories, testing facilities, and commercial buildings.
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Supports automation systems and production line voltage optimization.
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Global Reach and Support
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Worldwide shipping including North America, South America, Europe, Asia, Middle East, and Oceania.
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After-sales support from PowerNex ensures smooth operation.
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Cost-Effective Solution
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Reduces downtime and maintenance costs.
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Long service life ensures low total cost of ownership.
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Enhanced Safety Features
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Includes overload protection, short circuit protection, and thermal cut-off.
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Complies with international standards including IEC and CE.
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Applications
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Industrial Manufacturing: Voltage regulation for machinery, production lines, CNC machines, welding equipment, and motor control systems.
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Laboratory & Testing Facilities: Stable voltage for precise instruments and electronic devices.
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Commercial Buildings: AC voltage stabilization for elevators, pumps, HVAC, and lighting systems.
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Renewable Energy Systems: Integration with solar, wind, and hybrid systems.
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Ports, Water Treatment & Mining: Reliable power for heavy-duty pumps, motors, and control systems in harsh environments.
Case Studies
Case 1: Automotive Manufacturing Plant – Brazil
Challenge: The plant experienced frequent voltage fluctuations affecting robotic assembly lines and CNC machinery.
Solution: Installed 30 kVA Three Phase Variable Voltage Transformers to stabilize voltage across all production zones.
Result:
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Reduced equipment errors by 45%.
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Increased production line uptime to 99.5%.
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Extended the service life of motors and robotic arms.
Case 2: Laboratory & Electronics Testing Facility – USA
Challenge: Sensitive testing equipment required precise voltage control to ensure accurate measurements.
Solution: Deployed PowerNex 30 kVA AC Voltage Regulators with fine adjustment capability.
Result:
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Voltage deviation reduced to less than 1%.
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Testing accuracy improved significantly.
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Operators could remotely monitor and adjust voltage levels for multiple stations.
Case 3: Food Processing Factory – Australia
Challenge: Unstable power supply caused frequent downtime for refrigeration systems and automated packing machines.
Solution: Implemented three-phase variable voltage transformers with automatic voltage adjustment.
Result:
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Downtime decreased by 60%.
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Refrigeration and packaging systems operated continuously and efficiently.
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Energy efficiency improved due to optimized voltage supply.
Case 4: Water Treatment Facility – UAE
Challenge: Pumps and control systems required stable AC input in a harsh industrial environment.
Solution: Installed 30 kVA industrial AC voltage regulators with IP54 enclosures.
Result:
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System stability improved, preventing damage to critical equipment.
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Reduced maintenance frequency.
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Remote monitoring enabled efficient facility management.
Why Choose PowerNex
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Leading Manufacturer in China: Decades of experience in industrial voltage regulation and transformer production.
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Global Sales Network: Serving clients in USA, Canada, Brazil, Argentina, Australia, Indonesia, Malaysia, Philippines, UAE, Saudi Arabia, Russia, Germany, France, and beyond.
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Custom Solutions: Full range from 5–500 kVA with custom voltage, enclosure, and control options.
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Premium Materials & Components: Ensures long-term reliability and high performance.
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Technical Support: Professional assistance for installation, maintenance, and troubleshooting.
Installation & Maintenance
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Easy Installation: Compact design and user-friendly interface.
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Minimal Maintenance: Regular inspection of connections and protective devices is sufficient.
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Safety Compliance: Follow grounding, voltage selection, and local electrical regulations.
Global Shipping & Support
PowerNex offers worldwide shipping and technical support, with key markets including:
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North America: USA, Canada
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South America: Brazil, Argentina
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Europe: Germany, France, UK (optional)
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Asia & Southeast Asia: Indonesia, Malaysia, Philippines, India (optional)
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Middle East: UAE, Saudi Arabia
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Oceania: Australia
Our technical team provides installation guidance, troubleshooting, and after-sales support, ensuring optimal performance and longevity.
Conclusion
The 30 kVA Three Phase Variable Voltage Transformer, 380V Industrial AC Voltage Regulator is part of a complete industrial voltage regulation series designed to deliver stable, precise, and reliable three-phase power control. In addition to the 30 kVA model, this product line is available in multiple capacity options including 5 kVA, 10 kVA, 15 kVA, 20 kVA, 30 kVA, 50 kVA, 75 kVA, 100 kVA, 200 kVA, up to 500 kVA, meeting the power requirements of different industrial systems. Each three-phase variable voltage transformer is engineered for 380V AC industrial networks, with customizable voltage ranges and control configurations.
With flexible dimensions, customized cabinet sizes, enclosure types, and installation designs, these industrial AC voltage regulators can be tailored to specific site conditions and application needs. Featuring high efficiency, robust copper windings, industrial-grade insulation, and durable construction, this series complies with international electrical standards and is widely used in industrial factories, laboratories, commercial buildings, production lines, testing equipment, renewable energy systems, and harsh operating environments. Choose a scalable, customizable, and globally supported three-phase voltage regulation solution that ensures long-term operational stability, equipment protection, and efficient power management, by PowerNex.
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