DDG (single-phase) DSG (three-phase) low-voltage large current, electric furnace heating transformer
DDG (single-phase) DSG (three-phase) low-voltage large current, electric furnace heating transformer
DDG (single-phase) DSG (three-phase) low-voltage large current, electric furnace heating transformer
DDG (single-phase) DSG (three-phase) low-voltage large current, electric furnace heating transformer
DDG (single-phase) DSG (three-phase) low-voltage large current, electric furnace heating transformer
DDG (single-phase) DSG (three-phase) low-voltage large current, electric furnace heating transformer

DDG (single-phase) DSG (three-phase) low-voltage large current, electric furnace heating transformer

Shanghai Leilang electric furnace heating transformer has single-phase (DDG transformer) and three-phase (SDG) series. This series is characterized by high primary voltage, low secondary voltage and high current. This series of Transformers regardless of the test, heating, are required to step down from the supply voltage to boost current, so that low-voltage current up to thousands or tens of thousands of amperes. The high voltages of this series of products are generally 220V, 380V and 650V. The low voltages can be customized according to the required upflow, suitable for continuous working system, output voltage using safe voltage 3v, 6V, 9V, 12V, 15V, 24V, 36V and so on. When using this series of products, it is necessary to add voltage adjustment in front of the power supply, so that the low-voltage side to achieve stepless regulation. The transformer is widely used for continuous load test and heating of industrial electric furnaces, electric welders, spot welders, boilers, plating, forging and annealing, etc. .

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(+86) 021-59507565

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  • Product Description
  • Product parameters

  • Product details advantages:

    1. The terminal adopts high quality terminal or copper bar, which has high temperature resistance, high pressure resistance and convenient operation.

    2. The windings are made of class H enameled copper or aluminum wire with temperature resistance of 180 ° C and withstanding 5000V voltage.

    3. New cold-rolled silicon steel core, good magnetic flux, low noise, low iron loss, more energy-saving;

    4. The transformer is vacuum impregnated with 180 ° C insulating varnish, and the oven is dried at high temperature, which effectively reduces the vibration and noise in operation, increases the electric strength, prevents corrosion and prolongs the service life.

     

    Application:

    electric furnace heating transformer can be widely used in industry, such as chemical, smelting, short-circuit upflow, heating, annealing spot welding, touch welding, temperature rise test, current impact, electroplating, stainless steel wire drawing, coating, etc. .

  • Technical Parameters
    Model No. DDG (single-phase) / DSG (three-phase)
    Rated capacity 0.1KVA ~ 2500KVA (customizable)
    Input voltage 220V, 380V, 650V (customizable)
    Output Voltage 3V, 6V, 9V, 12V, 15V, 24V, 36V (customizable)
    Frequency 50Hz / 60Hz 
    Insulation class F / H (optional)
    Winding wire Class H enameled aluminum wire or copper wire (optional)
    Insulation method Vacuum impregnation with H-class insulating varnish
    Temperature rise Class F ≤100K / Class H ≤125K
    Voltage withstand test Primary to secondary 2.5KV/1minute
    Primary to ground 2.5KV/1minute
    Secondary to ground 2.5KV/1minute
    Insulation resistance Primary to secondary 2500V >100MΩ
    Primary to ground 2500V>100MΩ
    Secondary to ground 2500V>100MΩ
    Inductive withstand voltage 2 times frequency / 2 times voltage / 1 minute
    Ground resistance 25A＜100mOhm
    Temperature rise F class ≤100K; H class ≤125K
    Impedance voltage about 4%
    Variation ratio ＜3%
    Cooling method Self-cooled or air-cooled
    Protection level IP20, IP23, IP45, IP54, IP65 (can be customized)
    Noise ≤35-65dB (within 1 meter)    
    Working efficiency ≥97%            
    Ambient temperature -25℃~+40
    Altitude ﹤2000M
    The above parameters are for reference only, please contact customer service for specific parameters, subject to actual design parameters!

    Translated with DeepL.com (free version)

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