Double - frequency current generator
Description
APPLICATION
The double-frequency current generator is a device intended for induction hardening; the device comes complete with automatic output line adjustment for the charge impedance during the heating process.
SPECIFICATIONS
| Rated power output | 100 kW |
| Rated input voltage | 3 x 400 VAC, 50 Hz (60 Hz) |
| Integrated SiC transistors | |
| Frequency ranges | lower, MF 10 – 40 kHz upper, HF 150 – 400 kHz |
| Independent MF and HF full range power control from 0 to 100 kW | |
| Automatic adaptation to load impedance variations during the heating process | |
| Cooling system | outer cycle: running water, 30 l/min, 4 bar inner cycle: deionized water, circulation pump, 60 l/min, 1.5 bar |
| Size [L x W x H] | power box: 100 x 1200 x 1800 mm control panel: 1100 x 500 x 1100 mm |
| Weight | ca. 850 kg |
| Control | operator interface, integrated with the control panel CAN connectivity with external networks |
| Functions | diagnostic and service modes with remote control capability and database generation customizable settings of the heating process curve; independent MF and HF power settings |
| Protections | overload, shorting, electrocution, inductor shorting and earth fault |
The generator features a complex quaternary resonant circuit, which can generate two current signals at significantly different frequencies within the inductor.
DOUBLE-FREQUENCY HEATING
The generator features a complex quaternary resonant circuit, which can generate two current signals at significantly different frequencies within the inductor.
Double-frequency generator with a PWM inverter and output circuit adjustment:
IN - Input block
HF / MF - high and moderate frequency block (w/active impedance)
ZA - input circuit adjustment block with galvanic separation
CW - inductor coil
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