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    30 kVA Isolation Transformer, 3 phase, 480 Volt to 230 Volt

    High efficiency 30kVA solation transformer is dry type air self cooling one, which is available in the circuit of AC 50Hz/60Hz and convert 3 phase voltage 480V to 230V, or step up 230V to 480V, low cost and manufactured direct sale.
    Delivery date: 6-12 days

    30 kVA Isolation Transformer Features

    • 3-phase unit with 30 kVA power rating.
    • Primary voltage of 480V AC on the primary side and secondary voltage of 230V AC on the secondary side.
    • Have a minimum 1 year warranty.
    • Better protection, high quality workmanship.


    Basics Model ATOSG-30KVA
    Phase 3 phase
    Capacity 30 kVA
    Size 610*290*450 mm (without shell); 700*400*560 mm (with shell)
    Weight 150 kg (without shell); 175 kg (with shell)
    Technical Parameters Primary Voltage 480V (optional: 110V/ 120V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V)
    Secondary Voltage 230V (optional: 110V/ 120V/ 208V/ 220V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Voltage Convert Three phase to three phase
    Frequency 50Hz / 60 Hz
    Winding Material Aluminium/Copper wire (Optional)
    Work Efficiency ≥95%
    Insulation Resistance ≥50 MΩ
    Electrical Strength 3000V AC/1 min
    Noise <35-65dB (1 meter)
    Insulation Grade H level
    Wiring Mode Dyn11
    Cooling Mode Dry type air cooling
    Overload Capacity Allow more than 1.2 times rated load to work for up to 4 hours
    Working Environment Temperature -15℃~+40℃
    Humidity ≤90%RH, without condensation
    Altitude <1000m, non corrosive gas and conductive dust

    Transformer can only convert voltage and CANNOT convert frequency.
    Transformer CANNOT convert single phase voltage to 3 phase voltage.
    Input/output voltage, power rating and whether with shell of all transformers, can be customized according to clients' requirements.
    3 phase Isolation Transformer Wiring Method
    isolation transformer wiring method
    Isolation Transformer Application Areas
    isolation transformer application areaTips: Characteristics of ATO isolation transformer at the AC power input

    1. If the third harmonic and interference signal of the Grid is severe, use isolation transformer to remove the third harmonic and reduce the interference signal.
    2. The use of isolation transformers can generate a new neutral line to avoid the abnormal operation of equipment caused by unfit neutral power line.
    3. The current waveform distortion(such as third harmonic) caused by nonlinear load can be isolated without affecting the Grid.

    Need more detail of ATO isolation transformer? Here is a good explanation about it in this video. To test the accuracy of the transformer voltage, we take a 3000 VA single phase 220V iuput to 110V output isolation transformer as an example.

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