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    150 kVA Isolation Transformer, 240 Volt to 120 Volt

    $11,098.65
    $12,331.83
    150 kVA isolation transformer with high quality and cheap price. 3 phase (it can convert 3 phase voltage to single phase voltage as well), step down primary voltage 240V to secondary voltage 120V, also step up 120V to 240V, low noise, lower temperature rise, higher safety.
    SKU: ATOSG-150KVA
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    Delivery date: 6-12 days

    Three phase 150 kVA isolation transformers is 50/60Hz rated, dry type air self cooling of cooling method, convert 240 Volt voltage to 120 Volt voltage. The lower operating costs, lower heat emissions make this transformer ideal for a wide range of applications.
    150 kVA Isolation Transformer Specifications

    Basics Model ATOSG-150KVA
    Phase 3 phase
    Capacity 150 kVA
    Size 960*560*820 mm (without shell); 1050*650*960mm (with shell)
    Weight 485 kg (without shell); 520 kg (with shell)
    Technical Parameters Primary Voltage 240V (optional: 110V/ 120V/ 208V/ 220V/ 230V/ 380V/ 400V/ 415V/ 480V)
    Secondary Voltage 120V (optional: 110V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    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

    Note:
    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
    150 kVA Isolation Transformer Application Areas
    isolation transformer application areaTips: Difference between transformer and voltage regulator
    As we known, electricity is capable of generating a magnetic field that is also converted into electricity. The principle of transformer refers that a coil charged with alternating current generates an alternating magnetic field and this alternating magnetic field passes through another coil where voltage will be induced. The transformer ratio is related to the number of these two windings. In brief, under the principle of magnetic coupling, transformer is made of original edging windings and the voltage of both coil ends is directly proportional to the number of windings. Therefore, the transformer ratio is determined by the number of original edging windings.
    It is obvious that transformer is not a voltage regulator, because the auxiliary edging voltage changes with the original edging voltage.
    Voltage regulator follows the principle of negative feedback. For example, turn on the tap to half and install a sensor at the exit of tap to detect the amount of water. If the amount of water is too large, the tap will be triggered to turn down automatically. On the contrary, if the amount of water is too small, the amount of water will be triggered to turn up automatically till a constant water flow. The principle of voltage regulator is as follows: There is an error amplifier inverting input divider resistance sampling circuit that can detect the changes of output voltage can be compressed into an integrated chip in the regulator. When the output voltage changes, the feedback on the circuit detected with voltage changes will be provided to the private service motor by the chip and the automatic adjustment of electric brush position will be activated by the pivoted arm triggered by a private service motor in order to stabilize the output voltage, which is the simplest voltage regulator.

    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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