Close
(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories
    Filters
    Preferences
    Search

    250 kVA 3 phase Industrial AC Automatic Voltage Stabilizer

    5 out of 5 based on 4 reviews | Write a review
    $18,486.15
    ATO energy-saving 250 kVA capacity 3 phase 4-line industrial voltage stabilizer is air cooled full automatic compensated stabilizer with an input voltage range of 304V-456V AC and output voltage of 380V, has the functions of over/under-voltage protection, delay, and error protection.
    *
    *
    *
    SKU: ATO-AVS-3P250K
    30-day Returns
    Delivery date: 10-20 days

    250 kVA Voltage Stabilizer Features

    • Input: Three phase and four-line system, 175V-265V (phase voltage), 304V-456V (line voltage)
    • Output: Three phase 380V, ±1% accuracy, other voltages can be customized
    • 3 years standard warranty
    • High technology with computer programming control
    • Step-less automatic voltage control
    • Perfect protection function: Over/ low voltage protection, overheat/ load protection, short circuit protection
    • High efficiency: More than 95%

    250 kVA 3 phase Industrial AC Automatic Voltage Stabilizer is an adjustable automatic voltage compensation high-power regulating power device. When the voltage from the supply network is varied or due to the loading current effect, it automatically regulates the output voltage to ensure the normal function of the varied electric equipment.

    250 kVA Voltage Stabilizer Specifications

    Model Number ATO-SBW/ZBW-250K
    Capacity 250 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 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 24 months
    Certificate ISO9001:2008, CE
    Weight 1150 Kg
    Package Size 1100x800x2000 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. Before purchasing a voltage stabilizer, you'd better determine the reverse range and frequency of household voltage. For instance, if your voltage is pulled to about 80V and the input range of your voltage stabilizer is between 140V and 230V, it will not work as you wish. Therefore, voltage stabilizers should be selected according to the power supply range of the service environment. It is recommended to choose a broadband voltage stabilizer.
    2. You'd better know the total power of the device you need to stabilize the voltage, and the rated power of your voltage stabilizer should be 30% higher than the total power of all devices when choosing a voltage stabilizer. You should know that the heat generated by a full load will increase the loss of components. When the voltage stabilizer operates overload, the required current will be too large, and the voltage will inevitably be pulled down.
    Existing reviews of 250 kVA 3 phase Industrial AC Automatic Voltage Stabilizer
    Can you please suggest the proper voltage stabilizer?
    I am looking for a voltage stabilizer for a customer.  It is for a dedicated piece of equipment. Can you please suggest the proper voltage stabilizer? The equipment is 3 phase, 208v, 24A.  No neutral, just a ground. And all motors have a VFD to control them. Thank you!
    From: Blake | Date: 08/01/2024
    Was this review helpful? Yes No (0/0)
    ATO Responded
    If the power system is not "without neutral", we do not recommend customizing the Voltage Stabilizer to 1% accuracy. This is because the 1% accuracy carbon brush will frequently swing and affect its service life. We recommend using an accuracy of 2%~3%.
    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: Rsacco | Date: 06/01/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Just make the voltage stabilizer 1.5 times motor capacity.
    For your 250kVA voltage stabilizer, is it servo controlled or digital IGBT controlled?
    For your 250kVA voltage stabilizer, is it servo controlled or digital IGBT controlled?
    From: Hessett | Date: 13/12/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Our 250 kVA 3 phase Industrial AC Automatic Voltage Stabilizer is servo control only.
    High quality 250kVA automatic voltage stabilizer
    For your 250kVA voltage stabilizer, is it servo controlled or digital IGBT controlled?
    From: Shogun | Date: 16/05/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Our 250 kVA 3 phase Industrial AC automatic voltage stabilizer is servo control only.
    Load more reviews...
    Write your review for 250 kVA 3 phase Industrial AC Automatic Voltage Stabilizer
    • Only registered users can write reviews
    • Bad
    • Excellent
    Customers who bought this item also bought

    200 kVA 3 phase Industrial AC Automatic Voltage Stabilizer

    $14,341.54
    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 require stable and spike-less power to carry out its functions.