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    10kVA Control Transformer, 230V to 110/36V

    Best and cheap industrial control low voltage transformer used in 50Hz/60Hz, has 10kVA power rating, designed to step down single phase 230 volt primary voltages to 110/36V dual secondary voltage, fully electric isolation between primary side and secondary sides.
    30-day Returns
    Delivery date: 6-12 days

    230V to 1100/36V 1 phase control transformer on sales, features with 10kVA capacity, high quality terminal block, high temperature resistance, worked as control power supply for mechanical equipment and general electrical appliance. Primary and secondary voltages are customizable and but should note that primary voltage not exceeding 500V, secondary voltage not exceeding 240V.


    Product Name Single phase control transformer 
    Product Model ATOBK-10KVA
    Winding Material Enameled copper wire or enameled aluminum wire
    Capacity 10 KVA
    Primary Voltage (VAC) 110, 120, 208, 220, 230, 240, 380, 400, 480, 110/220, 120/240, 240/480, 220/380/480V, 440/460/480V...(Customized)
    Secondary Voltage (VAC) 6, 12, 24, 36, 48, 110/36, 120/24, 208/12, 220/48, 230/36, 240/120, 120/24/12, 110/36/24, 127/36/6, 208/48/36/24...(Customized)
    Frequency 50 / 60Hz
    Insulation Level F / H
    Withstand Voltage Test Primary to secondary 2.5KV/min
    Primary to safety ground 2.5KV/min
    Secondary to safety ground 1.5KV/min
    Insulation Resistance Primary to secondary 2500V>100 megohm
    Primary to safety ground 2500V>100 megohm
    Secondary to safety ground 1500V>100 megohm
    Induction Withstand Voltage Test 125Hz/ 800V/min
    Ground Resistance 25<A80 milliohm
    Cooling Method Natural or air cooling
    Transformation Ratio <3%
    Air Carrying Current <6%
    Impedance Voltage about 6%
    Total Losses 0.1
    Efficiency 80%~99%
    Operating Temperature -25℃~40℃ (40℃, 93% RH, 56 days)
    Storage Temperature -25℃~100℃ (40℃, 93% RH, 56 days)
    Certificate CE, ISO
    Warranty 12 months
    Size Overall size: 290*240*330mm, Hold distance for installation: 150*180mm, Installation hold: 20*10mm
    Weight 80kg

    Schematic diagram illustration

    Control transformer schematic diagram illustration

     Control transformer dimension

    Control transformer dimension

    Overall size (mm) Hole distance for installation (mm) Installation hole
    (mm) K x J
    B E D A C
    290 240 330 150 180 20 x 10


    There are two methods to control transformer drying: One is induction heating method, the other is hot air drying method.

    1. Induction heating method

    This method is to place the body in the oil tank, apply power frequency current to the outer winding coil, and use the heat of eddy current loss in the oil tank wall to dry. At this time, the temperature of the box wall shall not exceed 115℃ ~ 120 ℃, and the temperature of the body shall not exceed 90℃ ~ 95 ℃. For the convenience of winding the coil, the number of turns of the coil shall be as small as possible or the current shall be as small as possible. Generally, the current shall be 150A, and the conductor can use 35-50mm conductor. The oil tank wall can be padded with several asbestos strips, and the wires are wound on the asbestos strips.

    2. Hot air drying method

    This method is to put the body in the drying room and dry it with hot air. The temperature of hot air at the inlet shall gradually rise, and the maximum temperature shall not exceed 95 ℃. A filter shall be installed at the inlet of hot air to prevent sparks and dust from entering people. Do not blow hot air directly to the body. Try to blow it evenly from the bottom of the body to all directions, so that the moisture will be released from the vent hole of the box cover.

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