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    15 kVA Isolation Transformer, step up/step down 480V with 208V

    3 phase high quality isolation transformer with 15 kVA power rating, better dielectric strength and insulation resistance. Step up & step down transformer to change the voltage between 480V and 208V, suitable for both indoor and outdoor applications.
    Delivery date: 6-12 days

    15kVA isolation transformer is dry type air self cooling one, Which is available in the circuit of AC 50Hz/60Hz and step up 3 phase voltage 208V to 480V, also step down 480V to 208V, long life span and high efficiency.

    Basics Model ATOSG-15KVA
    Phase 3 phase
    Capacity 15 kVA
    Size 520*240*520 mm (without shell); 700*350*770 mm (with shell)
    Weight 135 Kg (without shell); 185 Kg (with shell)
    Technical Parameters Primary Voltage 480V (optional: 110V/ 120V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V)
    Secondary Voltage 208V (optional: 110V/ 120V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Voltage Convert Single phase to single phase, three phase to three phase, three phase to single phase
    Frequency 50Hz / 60 Hz
    Work Efficiency ≥95%
    Insulation Resistance ≥5 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.
    Product Application Areas
     isolation transformer application fieldTips: Transformer working principle
    Transformer mainly applies electromagnetic induction principle to work, the working principle details are as follows: When the primary side of the transformer is applied with the alternating voltage U1 and the current flowing through the primary winding is I1, then the current will generate alternating magnetic flux in the iron core to generate electromagnetic connections between the primary winding and the secondary winding.
    According to the electromagnetic induction principle, electromotive force will be induced when the alternating magnetic flux goes through these two windings. The magnitude of electromotive force is proportional to the winding turns and the maximum main flux, the voltage of more winding turns is high and the voltage of less winding turns is low. When the secondary side of the transformer opens circuit, that is to say when the transformer is no-load, the primary and secondary end voltage is proportional to the number of the primary and secondary winding turns, that is U1/U2 = N1/N2, but the primary and secondary frequency stays the same to realize the change of voltage.

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