KOMPLETTE ANLAGEN FÜR INDUKTIONSERWÄRMUNG
Thyristor frequency converter has been reconstructed for the company of Taforge a.s., Kopřivnice. Together with three-phase separating transformer and the load of oscillatory circuit which is induction billet heater ITO 633/1-A (-L), it is used for induction heating of steel billets with circular or square cross-section up to forging temperature.
The aim of the reconstruction was to increase the reliability of its operation. During the reconstruction the current regulator SMK-UB with fifteen units was replaced by a new one containing four basic units with advanced integrated circuits CMOS. Also Programmable Logic Controller was added.
| Nominal input values (power circuits) | ||
| Power Input [kVA] | 748 | |
| Input voltage from separating transformer [V] | 3 x 400 | |
| 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] | 6 | |
| Input temperature [°C] | max. 30 | |
| 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] | 50 | |
| Nominal output values | ||
| Output [kW] | 630 | |
| Nominal output voltage [V] | 600 | |
| Frequency [kHz] | 0,5 - 1,5 | |
| Ostatní parametry | ||
| Dimensions (d x š x v) [mm] | 1800 x 800 x 2200 | |
| Weight [kg] | 1600 | |
| Cabinet | IP 41 | |
| Color | - | |
