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    50 kVA Automatic Voltage Stabilizer, Three Phase, 220V/400V/440V

    SKU: PH-AVS-3P50K
    $6,829.23
    ● Provides a robust 50 kVA power capacity, designed for medium to large industrial power applications. ● Incorporates advanced computer programming for precise, adaptive, and self-optimizing voltage regulation. ● Operates at an efficiency of>95%, minimizing operational energy costs and heat generation. ● Handles a broad three-phase input range (Line: 304V-456V AC; Phase: 175V-265V) and delivers a stable, customizable 380V output.
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    ⏱️ Delivery: 10-20 days
    🔙 30-day Returns
    Overview

    Powerhome's 50 kVA 3-phase automatic voltage stabilizer is designed for industrial power systems that demand higher capacity, intelligent control, and long-term operational stability. Built with a fully automatic compensated regulation structure, it effectively stabilizes voltage fluctuations caused by unstable grid conditions or variable industrial loads. Featuring a wide three-phase input voltage range of 304V~456V AC (±20%) and a standard 380V output, this stabilizer delivers consistent, distortion-free power with efficiency exceeding 95%. Advanced control technology and high-quality internal components ensure reliable performance across demanding industrial environments.

    50 kVA 3 phase voltage stabilizer feature

    Feature

    • Wide Input Voltage Range & High Capacity: Supports ±20% input voltage fluctuation while delivering a reliable 50 kVA output for demanding industrial loads.
    • High Output Accuracy & Clean Power: Maintains stable voltage levels with customizable output accuracy, ensuring safe operation of sensitive equipment.
    • High Efficiency for Energy Savings: Operating efficiency above 95% helps reduce energy loss and improve overall system performance.
    • Comprehensive Industrial Protection: Built-in over-voltage, under-voltage, overload, overheating, and short circuit protection ensure safe and reliable operation.
    • Broad Industrial Application Compatibility: Suitable for telecommunications systems, elevators, hospitals, schools, printing facilities, workshops, and other industrial and commercial environments.
     

    Details

    1. High-quality circuit breaker
    2. New silicon steel plate, high magnetic transformer with compensator
    3. High-speed reducer servo motor
    4. Cooling fan*2
    5. Carbon brush
    6. Precision voltage copper coils
    50 kVA 3 phase voltage stabilizer details

    3 Phase Voltage Stabilizer Schematic Diagram

    schematic diagram of 3 phase voltage stabilizer

    Specs
    Capacity 50 kVA (The power capacity of the voltage stabilizer needs to be 1.5~2 times greater than the load power)
    Phase 3-Phase 4-line
    Input Voltage Range ±15% tolerance for all standard output voltages above 380V.
    ±20% tolerance for the required 380V output and all standard voltages below.
    Output Voltage 3-phase 380V (Optional: 110V/ 120V/ 208V/ 220V/ 230V/ 240V/ 400V/ 415V/ 440V/ 460V/ 480V)
    Output Accuracy ±2~4% / ±1% (Optional)
    * In case of output accuracy of ±2~4%, the voltage stabilizer will be servomotor-based, and in case of output accuracy of ±1%, the voltage stabilizer would be SCR-based.
    Frequency 50Hz/60Hz
    Current Type AC
    Efficiency ≥95%
    Response Time ≤1.5S
    Ambient Temperature -15°C~+40°C
    Cooling Method Air-cooled
    Insulation Resistance ≥5MΩ
    Electrical Intensity Without breakdown and flashover phenomena at power frequency sine voltage 2000V for 1 min
    Overload Capacity Overload current (%) Duration (min)
    20 ≤60
    40 ≤15
    60 ≤5
    Waveform Distortion Non-lack fidelity waveform
    Protection Over-voltage, over-current, feed phases
    Protection Grade IP 24
    Warranty 12 months
    Certificate ISO9001:2008, CE
    Weight 350 Kg
    Package Size 800×620×1350 (mm)

    PDF computing30kVA-3000kVA 3-Phase Voltage Stabilizer User Manual

    Application
    3 phase automatic voltage stabilizer for medical equipment

    Medical Equipment

    3 phase automatic voltage stabilizer for communication circuits

    Communication Circuits

    3 phase automatic voltage stabilizer for CNC machine tools

    CNC Machine Tools

    3 phase automatic voltage stabilizer for power distribution equipment

    Power Distribution Equipment

    FAQ

    Q1: Is a 50 kVA stabilizer suitable for protecting an entire data center or server room?

    Yes, a 50 kVA unit is an excellent choice for protecting small to medium-sized data centers or critical server rooms. It provides sufficient capacity to support servers, networking equipment, and associated cooling systems, shielding them from grid-born voltage fluctuations that can cause data corruption, hardware damage, or unexpected downtime.

    Q2: How does the high efficiency (>95%) impact the total cost of ownership (TCO)?

    The high efficiency directly reduces wasted energy (losses as heat), leading to lower ongoing electricity costs. For a 50 kVA voltage stabilizer operating continuously, even a few percentage points of higher efficiency can translate to substantial annual savings. Additionally, reduced heat dissipation lessens stress on internal components and can lower facility cooling requirements, further decreasing operational expenses and improving TCO.

    Q3: Can this stabilizer handle the high inrush currents from multiple large motors starting simultaneously?

    Yes, its design accounts for high inrush currents typical in industrial settings. The 50 kVA capacity provides a substantial power buffer, and the robust internal components (transformers, contactors) are rated to withstand these temporary surges without tripping the overload protection, ensuring smooth startup of heavy machinery like compressors, large pumps, or elevator motors.

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