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SCR Rectifier 38kA40V For Electric Arc Furnace Heating

SCR Rectifier 38kA40V for electric arc furnace heating

 1.Application                                                                                                                        

      Our SCR rectifier has been widely used as a external DC power supply for industry factories in many countries and got the customer's high praise and affirmation. 

  

 2. Working principle                                                                                                      

         

The power supply main circuit topology structure is 12 pulse double star rectification, convert AC 3 phase 11KV to 41V through transformer, then 0~40V DC voltage, shown as the picture above. It adopts water cooling method, has over heat, output over voltage/current, water under pressure, limit voltage/current etc. protection functions. If failure, there will be alarm. Every bridge arm is parallel connected by three thyristors (one for spare), if one thyristor is broken, the other two could still work normally.

 3. SCR rectifier technical parameters                                                                             

Items	Technical parameters
AC input	3Φ11KV(±5%),50Hz
DC output voltage	0-40V continuously adjustable
DC output current	0-38KA continuously adjustable
Output current stability	≤0.5% (between 30%~100% load voltage)
Power factor	≥0.85   (at full load)
Voltage reserve coefficient	≥3
Current reserve coefficient	≥2
Cooling method	Water cooling
Inlet water pressure	0.1-0.3MPa
Inlet and outlet water pressure difference	0.1MPa
Water quality	deionized softened water
Inlet water temperature	≤40℃
Protection	Overheat, input over current , output over   voltage/current, under water pressure and under water flow etc.

 4.SCR rectifier structure diagram                                                                                    

The SCR rectifier system has high voltage switch cabinet, transformer, power supply cabinet and water chiller.

Looking for scr rectifier 38ka40v for electric arc furnace heating? Chengdu General Rectifier Research Institute is one of the professional manufacturers and suppliers. We have been dedicated to this field for over 20 years and already exported products to India, USA, Germany, etc. Equipped with a productive factory, we warmly welcome you to buy our high quality products made in China at competitive price or try our customized service.