I. IF power cabinet:
1. Phase-in voltage: 1500V, DC output voltage: 1900V, intermediate frequency voltage: 2600V
DC current: 3500A, power: 6500KW
Intelligent control system
2, KK thyristor 1000A / 2500V 48
3, KP thyristor 3500A / 4000V 6
4, air switch 2000A / electric 2
5, installed copper bar 120 mm X 8 mm
2. Capacitor cabinet:
Capacitor 4000KF / 2500V 20 sets
Third, the induction melting furnace
2.3m x 2.3m, 2.5m high, steel case
Hydraulic tilting furnace system
Features:
1. The phase-in voltage is as high as 1500v, and the DC voltage is high, which significantly reduces the losses of electrical cabinets, transmission lines and power transformers.
2. The intermediate frequency voltage is up to 2600V, and the booster circuit is used, and the voltage across the induction furnace is up to 5200V, which greatly reduces the loss of the induction coil and water cable.
3, the bottom of the furnace dedicated cooling ring, durable, difficult to wear the furnace, the furnace bottom loss; the use of booster circuit, the voltage across the furnace can reach 5200V (twice the output voltage of the cabinet), water cable, induction coil loss Small; 1500V phase-in voltage, reactor, equipment
Machine copper bar and phase-in cable loss is small; 48 1000A / 2500V KK thyristors, three sets of KK thyristors in parallel, low power consumption, and the cost of purchasing KK thyristors during maintenance can be reduced by six times Four KK3500A / 2500V thyristors cost about 8500 yuan, while three sets of KK thyristors are connected in parallel, and only one of them will be damaged in the same situation. Four KK1000A / 2500V thyristors only need about 1200 yuan Greatly reduces maintenance costs).
4, increase the induction melting furnace, the new furnace can produce 13 tons.
5. Intelligent system, fast protection, simple structure, convenient operation and easy maintenance.
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