COMPLETE EQUIPMENT FOR INDUCTION HEATING

Double Transistor Frequency Converter TRMK 200+40/20/06

Double transistor frequency converter was made for the University of West Bohemia in Plzeň. Together with three-phase separating transformer and two loads in the form of parallel oscillatory circuit, which is induction heater SOT 200+40/20, it is used for induction heating of steel rods.
Double transistor frequency converter consists of two input power circuit breakers, controlled rectifiers, smoothing chokes, current inverters and overvoltage protections. The operation of the frequency converter is provided by operating system consisting of two regulators, converters and Programmable Logic Controller (PLC). Internal integrated water cooling system is used for cooling the electronic and other elements of power circuits of the frequency converter.

Basic technical specifications TRMK 200+40/20/06

Nominal input values (power circuits)
Power Input [kVA]  240 + 40
Input voltage from separating transformer [V]  3 x 400 + 3 x 200
Frequency [Hz]  50
Nominal input values (control circuits)
Power Input [kVA]  2
Voltage [V] 3 x 400
Frequency [Hz]  50
Cooling water (external cooling loop)
Consumption [m3/h]  2,5
Input temperature [°C]  max. 32
Input pressure [MPa]  max. 0,4
Pressure loss [MPa]  0,12
Maximum warming thru loop [K]  5
Cooling water (internal cooling loop)
System capacity [l] 20
Nominal output values
Output [kW]  200 + 40
Nominal output voltage [V]  600 + 300
Frequency [kHz]  10 - 20
 Ostatní parametry
Dimensions (d x š x v) [mm]  2230 x 830 x 2100
Weight [kg]  1500
Cabinet IP 43
Color RAL 7035

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