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    30 kVA 3-Phase Autotransformer, 380V to 220/200V

    5 out of 5 based on 1 reviews | Write a review
    Manufacturer price 3-phase autotransformer for sale online. Rated power capacity 30 kVA, primary input voltage 380 volts, secondary output voltage 220V/200V, AC circuit 50/60 Hz, optional copper/aluminum winding, supports self/wind-cooled, open type and sealed type versions are available.
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    Delivery date: 6-12 days

    Reasonable price 30 kVA autotransformer for sale, convert three phase voltage 380V input to 220/200V output, provides copper/aluminum winding and open/sealed protection for choose, making the dry type step down auto-transformer ideal for a wide range of applications.

    Applications: The 3-phase autotransformer can be used in CNC production equipment, SMT, printing machines, electrical discharge machines, automatic plug-in machines, precision measuring equipment, laser cutting machines, plastic molding machines, medical monitoring systems, PCB drilling machines, laboratory equipment, military use Instrumentation control center, etc.


    Model ATO-ASG30KVA
    Phase 3-Phase
    Capacity 30 kVA
    Input Voltage AC 380V
    Input Current 46A
    Output Voltage (Optional) AC 220V, 200V
    Output Current 87A (220V), 79A (200V)
    Frequency 50Hz / 60Hz
    Winding Material (Optional) Aluminum Wire, Copper Wire
    Cooling Method Self-Cooling or Wind-Cooling
    Working Efficiency ≥98%
    Protection Grade IP21
    Waveform Distortion No distortion (compared with output wave)
    Insulation Resistance ≥ 150MΩ
    Wiring Yn0
    Electrical Strength Power frequency sinusoidal voltage 3000V lasts for 1 minute, no breakdown and flicker
    Overload Protection Can withstand instantaneous 2 times the rated current
    Moisture-Proof Type (Optional) Open type, sealed type
    Ambient Temperature -20℃ ~ +45℃
    Altitude ≤ 2500m
    Relative Humidity 0-95%
    Noise ≤35dB (within 1 meter)
    Design Service Life 20 years
    Use Environment No explosion, rain and snow corrosion place, and no gas and conductive dust in the medium that can corrode metal and damage insulation
    Weight (Enclosure Included) 130 kg
    Dimension 550*500*600 mm


    • 3-phase autotransformer has enough power, the wiring is tight and neat, and does not skip turns. Coils adopt insulated H-class enameled wire, with low no-load current and low loss.
    • The 30 kVA dry-type autotransformer has built-in silicon steel sheet, which has good magnetic flux performance, high heat dissipation coefficient and low magnetic loss.
    • The autotransformer uses electrophoresis technology clamps, no burrs on the edges, rounded corners to prevent collisions, and not easy to corrode.
    • Tinned copper tube terminals and rail-type wiring ports are convenient for wiring and ensure that the power-on overload capacity is increased to the extreme.


    30 KVA 3-Phase Autotransformer Details

    30 kVA 3-Phase Autotransformer Schematic Wiring Diagram

    3-Phase Autotransformer Schematic Wiring Diagram

    Tips: The core and wires of the 3-phase autotransformer winding.

    Winding is the circuit part of 3-phase autotransformer. It works by winding the 3-phase autotransformer by wrapping the insulated flat wire or the enameled round wire. The basic principle is electromagnetic induction.

    • Core: 3-phase autotransformer uses high-quality high-silicon steel sheet. It is primarily made of H18, H14, H12 and Z11. ATO use the most suitable materials that satisfy the customer requirements and conditions of use, and ensure that 3-phase autotransformer performance is designed to its best.
    • Wires: 3-phase autotransformer uses PEW, UEW, EIW, SEIW, EAIW and FEAI enameled wires and fiber-glass covered wires (for high power autotransformer s), with the temperature-resist grade of F (155℃), H (180℃), HC (200℃) and C (220℃). ATO will select the appropriate temperature rating according to the customer's requirements or the customer's environment.
    Existing reviews of 30 kVA 3-Phase Autotransformer, 380V to 220/200V
    The first choice for high energy efficiency
    I bought a 30 kVA 3 phase autotransformer to go from 380V to 220/200V and it really is a high energy efficient choice. Not only does it reduce energy consumption, but it excels in voltage conversion. Very satisfied!
    From: Zephyros | Date: 24/11/2023
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