DC Electrical Heating Power Supply

Introduction:

DC electrical heating power supply also been called high frequency heating power supply. As for the working principle, three phase full bridge rectifying circuit is adopted

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DC electrical heating power supply also been called high frequency heating power supply. As for the working principle, three phase full bridge rectifying circuit is adopted. After converting of 3 phase AC filter, IGBT, high frequency transformer, and fast diode, we got the reliable dc voltage and current. This rectifier is multiple units paralleled structure. When one unit break down, others work normally. Besides, there is no communication cable when two units work together. We customized direct electrical heating (DEH) power supply system WHSB-DJR-PLC-15kA/80V, 5kA/80V for a customer in steam heating pipes sector.

Power Supply 3P AC380V, 400V, 450V, etc. frequency (50Hz)
Rated Output DC Voltage 6V, 12V, 15V, 18V, 24V, 36V, any voltage at request
Rated Output DC Current 500A, 1000A, 1500A, 2000A, 3000A, 4000A, 5000A, 6000A, 8000A, 12000A, 15000A, 18000A, 20000A, any current at request
Soft Start Time 0-20s
Constant Current and Constant Voltage Control Accuracy ≤±1%
IGBT Inverted Switch Frequency 20KHZ-25KHZ
Rectifier Efficiency ≥90%
Pulse Phase-Shifting Resolution ≤1μs
Output Voltage Ripple Coefficient ≤3-5%
Protection Function Phase-lack, over temp, over-voltage, over-current, short circuit, over-load, etc.
Communication Means RS485/RS232/Profibus/Analog signal
Optional a. PLC programmable control system+LCD color touch screen b. Remote control box

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