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    8 kVA Isolation Transformer, single phase, 120V to 120V

    $1,069.05
    High quality 8 kVA dry type isolation transformer on sale, single phase, which has 120 volt voltage, a ratio of 1:1 between the primary and secondary windings, is used to protect against electric shock between the ground and energized conductors.
    SKU: ATO-DG8KVA
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    Free shipping
    Delivery date: 6-12 days

    The offered cheap price isolation transformer is single phase for 50/ 60Hz AC circuit, with 8 kVA power rating, primary voltage of 120V, it also provides a secondary voltage of 120V, isolating the powered device from the power source, usually for safety reasons.

    8 kVA Isolation Transformer Specifications

    Model ATO-DG8KVA
    Phase Single phase
    Capacity 8 kVA
    Primary Voltage 120V AC (optional: 110V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Secondary Voltage 120V AC (optional: 24V/ 36V/ 48V/ 110V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
    Frequency 50Hz / 60Hz
    Winding Material Aluminium/Copper wire (Optional)
    Work Efficiency ≥95%
    Insulation Resistance ≥50 MΩ
    Electrical Strength 2000V AC/1 min
    Noise ≤35dB (1 meter)
    Insulation Grade Grade B (130℃), Grade F (155℃), Grade H (180℃)
    Wiring Mode △/Yn11
    Cooling Method Natural or air cooling
    Overload Capacity Allow more than 1.2 times rated load to work for up to 1 hour
    Certification CE, ISO
    Temperature -15℃~+45℃
    Humidity ≤90%RH, without condensation
    Altitude <2000m, non corrosive gas and conductive dust
    Size 290*245*305 mm (open type);
    440*395*455 mm (protected type)
    Weight About 68 kg (open type);
    About 75 kg (protected type)

    Note:
    Transformer can only convert voltage and CANNOT convert frequency.
    Transformer CANNOT convert single phase voltage to 3 phase voltage.
    Support voltage customization, various specifications customization.

    Single Phase Isolation Transformer Schematic Diagram
    DG isolation transformer schematic diagram
    8 kVA Isolation Transformer Dimension
    8 kva isolation transformer dimensionBasic principle of gas protection
    Gas protection shows the gas quantity and oil flow velocity in a fault. When the transformer internal fault occurs, the local high temperature at the fault point increases the oil temperature of the transformer and expands the volume, air in the oil is discharged to form an ascending gas. If an arc is generated at the fault point, the transformer oil and insulation materials will decompose large quantities of gas, which flow from the tank to the oil conservator. The more serious the fault is, the more gas it produces, and the faster flowing speed of the oil to the oil conservator. The gas quantity and oil flow velocity can directly reflect the character and severity of transformer faults, so light gas acts on the signal when the gas quantity and oil flow velocity are small. When the fault is rather serious, the oil flow velocity is fast and heavy gas protection acts immediately on a tripping operation.

    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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