1. Overview of KPGS SCR IF power supply
The fourth-generation intermediate frequency inverter power supply is controlled by the international advanced ISP industrial module, fully digitalized operation, reliable hardware and software protection, more complete functions, suitable for metal smelting, heat preservation, diathermy, metal heat treatment, quenching, sintering and other occasions.
Second, the working principle of the intermediate frequency power supply is:
A three-phase bridge-type fully controlled rectifier circuit is used to rectify the AC power into DC power. After smoothing the reactor, it becomes a constant DC current source, and then through a single-phase inverter bridge, the DC current is inverted to a certain frequency (generally 1000 To 8000Hz) single-phase IF current. The load consists of an induction coil and a compensation capacitor, which are connected into a parallel resonant circuit.
3. Main technical parameters of intermediate frequency power supply:
Model specifications | Rated
capacity
t | Rated power of serial frequency
power supply kw
| Intermediate frequency
power
frequency
kHz | Rated
working
voltage
V | Smelting cast steel 1600 ℃ Smelting cast iron 1450 ℃ |
Melting rate
t / h | Unit
power consumption
kw.h / t | Melting rate
t / h | Unit
power consumption
kw.h / t |
GWLJ0.15-100-1 (2.5) | 0.15 | 100 | 1 (2.5) | 750 | 0.1 1 | 900 | 0.11 | 870 |
GWLJ0.25-160-1 | 0.25 | 250 | 1 | 750 | 0.30 | 700 | 0.35 | 680 |
GWLJ0.5-250-1 | 0.50 | 350 | 1 | 750 | 0.54 | 680 | 0.57 | 660 |
GWLJ0.75-500-1 | 0.75 | 500 | 1 | 750 | 0.77 | 650 | 0.80 | 625 |
GWLJ2.0-1000-2 / 0.5 | 1.0 | 750 | 1 | 750 | 1.27 | 590 | 1.30 | 560 |
GWU2.0-1200-2 / 0.5 | 2.0 | 1200 | 0.5 | 1500 | 1.90 | 630 | 1.98 | 606 |
GWU3.0-1500-3 / 0.5 | 3.0 | 1500 | 0.5 | 1500 | 2.4 | 625 | 2.5 | 604 |
GWLJ3.0-1800-3 / 0.5 | 3.0 | 1800 | 0.5 | 1500 | 2.95 | 615 | 3.07 | 586 |
GWLJ5.0-2500-5 / 0.5 | 5.0 | 2500 | 0.5 | 1500 | 4.0 | 610 | 4.46 | 586 |
GWU5.0-2500-5 / 0.5 | 5.0 | 3000 | 0.5 | 1500 | 5.0 | 600 | 5.2 | 576 |
GWLJ8.0-3000-8 / 0.3 / 0.5 | 8.0 | 3000 | 0.3 / 0.5 | 1500 | 4.9 | 610 | 5.11 | 586 |
GWLJl0-3000-10 / 0.3 / 0.5 | 10 | 3000 | 0.3 / 0.5 | 1500 | 4.87 | 615 | 5.0 | 597 |
GWLJl0-4000-10 / 0.3 / 0.5 | 10 | 4000 | 0.3 / 0.5 | 1500 | 6.67 | 600 | 6.9 | 576 |
GWLJl2-5400-12 / 0.3 / 0.5 | 12 | 5400 | 0.3 / 0.5 | 1500 | 8.16 | 600 | 8.4 | 580 |