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    300 kVA 3 phase Industrial AC Automatic Voltage Stabilizer

    5 out of 5 based on 3 reviews | Write a review
    The provided industrial AC voltage stabilizer with 300 kVA rated capacity, air-cooled type, 3 phase 4-line with 175V-265V (phase voltage)/304V-456V (line voltage) input voltage range, 380V output voltage. This series automatic compensated power voltage stabilizer is specifically designed for the needs of the more demanding industrial applications where the need for a more robust and virtually maintenance free solution is required.
    SKU: ATO-AVS-3P300K
    30-day Returns
    Delivery date: 10-20 days

    300 kVA Voltage Stabilizer Features

    • Input: Three phase and four-line system, 175V-265V (phase voltage), 304V-456V (line voltage)
    • Output: Three phase 380V, other voltages can be customized
    • Step-less automatic voltage regulation
    • High efficiency: More than 95%
    • Perfect protection function: Over/ low voltage protection, over heat/ load protection, short circuit protection
    • 2 Years standard warranty
    • Compliance with international standards

    300 kVA 3 phase Industrial AC Automatic Voltage Stabilizer is designed using latest technology support to keep output voltage stable when outside power supply network fluctuation and load change resulting in voltage waving.

    300 kVA Voltage Stabilizer Specifications

    Model Number ATO-SBW/ZBW-300K
    Capacity 300 kVA (The power capacity of voltage stabilizer needs to be 1.5~2 times greater than the load power)
    PDF User Manual for 30kVA-3000kVA 3-phase voltage stabilizer
    Phase 3 Phase 4-line
    Input Voltage Range ±15% tolerance for all standard output voltages above 380V.
    ±20% tolerance for 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 Naturally air cooled
    Insulation Resistance ≥5MΩ
    Electricalintensity 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 24 months
    Certificate ISO9001:2008, CE
    Weight 775 Kg
    Package Size 1100x800x2100 mm

    3 Phase Voltage Stabilizer Schematic Diagram

    three phase voltage stabilizer schematic diagram

    Industrial Voltage Stabilizer Inner Detail

    3 phase voltage stabilizer details

    Voltage Stabilizer Buying Tips

    1. It is recommended that you choose a voltage stabilizer that is three times larger than the actual power, because in practice, voltage stabilizers have to overcome surge impact of commercial power and start impact of inductive load (such as refrigerator, air conditioner, motor and electric motor). When choosing a contact automatic voltage regulator in the purchase of voltage stabilizer, the rated output voltage regulator should have a larger margin than the switched automatic voltage regulator. In addition, it is necessary to check the appearance, quality and technique, ensuring that buttons, switches and other operations are flexible and reliable, spare parts are tight and there is no sound of object rolling in the machine when shaking the device components, otherwise there are foreign bodies in the device.

    2. The rated total output of automatic voltage regulator should be properly selected (total capacity=total power of household appliances*3). The outline structures of automatic voltage regulators include desktop voltage regulator, wall-mounted voltage regulator, dual-purpose of desktop and wall-mounted voltage regulators, as well as floor-type voltage regulator. It is recommended that you should choose different styles according to the location of installation, main use and installation capacity.

    Existing reviews of 300 kVA 3 phase Industrial AC Automatic Voltage Stabilizer
    How can I size the voltage stabilizer when used for a motor?
    How can I size the voltage stabilizer when used for a motor?
    From: Margaret | Date: 06/01/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Just make the voltage stabilizer 1.5 times motor capacity.
    Voltage regulator related issues
    Ok. So there is definitely no need to go bigger than 15kVA when the input power is 220V / 63A.
    What about the question re what type of AVR it is?
    Is it a simple servo motor sliding contact type or something more sophisticated?
    From: Cobb | Date: 12/09/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, it is a simple servo motor sliding contact type.
    Capacity of automatic voltage stabilizer
    Hi. I'm looking at the ATOSVC-15kVA. Please explain the reason behind "The power capacity of voltage stabilizer needs to be 1.5~2 times greater than the load power". Also, what type of AVR is this? Eg Is it servo motor controlled with sliding contact?
    From: Josephl | Date: 27/08/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Let me check. Yes, usually the input power supply capacity should be 1.5 times the voltage stabilizer capacity, which depends on the load capacity you are using.
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    SKU: ATO-AVS-3P200K
    Air cooled full automatic compensated voltage stabilizer is 200kVA rated capacity, 3 phase 4-line system, 304V-456V AC input and 380V output, more than 95% high efficiency. It is specially designed to cater the sensitive machines that requires stable and spike-less power for carrying out its functions.