DC Arc Furnaces heating SCR rectifier Manufacturer UL CE CSA
Various DC furnace where DC power supply is needed, including all kinds of vacuum resistance furnace, vacuum arc furnace, plasma furnace etc. for melting of Titanium, Zirconium, Niobium and Vanadium, Tungsten, Molybdenum, metals difficult to dissolve, high temperature alloy and alloy steels.
Electro slag refining
Recommended rectifier: High power SCR Rectifier
Small power IGBT Rectifier
Compare to Diode rectifier, Thyristor rectifier has the following advantages:
u Realize accurate output regulation by SCR triggering control, not only by tap changer which is not accurate.
u Fine and accurate output voltage or current regulation as desire
u Intelligent digital controller
u Self adaptive to input grid fluctuation
Ø Rectifier installation: in container with air conditioner
Ø Rated Output current: 25kA
Ø Output current range: 0~25kA；
Ø Rated output voltage:140V(support 70V, 102V, 140V output using tap changer)
Ø Whole system efficiency:≥95% at rated load;
Ø Constant current accuracy: ≤±1%;
Ø Constant voltage accuracy: ≤±1%;
Ø Power factor:≥0.92;
Ø Harmonics THDi:≤5% with LC filter;
Ø Rectifier circuit: two double star circuit in parallel
Ø Rectifier output pulse no.:12;
Ø Rectifier cooling method:WF, water cooling;
Ø Protection grade: IP54
Ø Control mode: constant current/voltage control
Ø Structure feature: front door and side door could be open for maintenance;
Ø Paint finish: RA7035
Ø Controller local function: use HMI touch panel, have following functions:
Output DC current display
Output DC voltage display
Output DC power display
RESET push button, black color(if required)
Remote indication lamp, green color
Unit on indicator lamp, green color
Fault indicator lamp, amber or red color
Fault reason display
Output value setting
Constant current/voltage/power mode selection
Local/remote control selection
History data record
Water pressure display
Protection setting