Key Features

   Save energy depending on the characteristics of series inverter circuit, power consumption of every ton of steel can be controlled at the range of 530～600kWh/t.

   Without harmonic pollution to power grid, coincide with GB/T 14549-93 National Standards of Power Quality Public Power Grid Harmonic. It does not need equip extra harmonic eliminator.

   There is high power factor to power grid of the complete equipment without any power compensation device. The power factor keeps more than 0.97 automatically in the whole process of working.

   Reliable operation and few faults.

   Constant output power. The system will keep full load power in the whole process of working, enhance working efficiency and melting rate.

   Dual-track will be realized by series resonance circuit. The dual-track system of induction melting furnace is required by the automatic casting production line, in order to optimize process, improve the productivity and save energy. The power will be stepless distributed to two furnace bodies simultaneously at the range of 0～100% from one power supply cabinet. Such will be easy to realize and switch any one furnace body in melting and another in holding.

         

             The sight of internal structure and appearance of GW-CL1600kW-B Type dual-track
power supply cabinet

         

      Series Resonance Circuit SCR Medium Frequency Dual-track Melting Furnace Working Site

       In the left picture, the molten iron in furnace has reached the casting temperature and preserved by 10%～20% of total power distributed by power supply control system. The balance 80%～90% of total power is automatically distributed to another furnace for melting. When the left furnace finished casting, the molten iron in right furnace will just reach the rated temperature. The power supplied will be reduced and switched automatically to previous furnace for melting. Feed raw material to the left furnace and start another melting cycle. The technology will enhance the productivity, save energy, and optimize the craft process.

Series Resonance SCR Medium Frequency Power Supply

no	Parameter name	1t-800-0.35-B	1.5t-1200-0.35-B	2t-1500-0.3-B	2.5t-2000-0.3-B	3t-2500-0.3-B	5t-3000-0.2-B	10t-6000-0.2-B
01	Rated capacity	1t	1.5t	2t	2.5t	3t	5t	10t
02	Max capacity	1.1t	1.6t	2.2t	2.8t	3.2t	5.5t	11t
03	Rated power	800kW	1200kW	1500kW	2000kW	2500kW	3000kW	6000kW
04	Max power of single furnace	600kW	1000kW	1200kW	1600kW	2000kW	2500kW	5500kW
05	Phase of input voltage	6phase	6phase	6phase	6phase	6phase	6phase	6phase
06	Rectification model	12pulse	12pulse	12pulse	12pulse	12pulse	12pulse	12pulse
07	Input voltage	380V	380V	380V	380V	480V	480V	575V
08	Input current	480A	920A	1150A	1520A	1520A	1810A	3050A
09	DC voltage	1000V	1000v	1000V	1000V	1250V	1250V	1500V
10	DC current	600A	1200A	1500A	2000A	2400A	2400A	4000A
11	MF frequency	350Hz	350Hz	300Hz	300Hz	200Hz	200Hz	200Hz
12	Inductor voltage	2000V	2200V	2500V	2500V	2500V	2500V	3000V
13	Working temperature	1600℃	1600℃	1600℃	1600℃	1600℃	1600℃	1600℃
14	Melting rate	1t/h	1.5t/h	2t/h	2.5t/h	3t/h	5t/h	9t/h
15	Power consumption	550kWh/t	550kWh/t	550kWh/t	550kWh/t	550kWh/t	550kWh/t	550kWh/t
16	Cooling water of power supply	15m3/h	25m3/h	35m3/h	50m3/h	60m3/h	80m3/h	160m3/h
17	Cooling water of furnace body	30m3/h	50m3/h	80m3/h	100m3/h	120m3/h	160m3/h	400m3/h
18	Power factor	≥0.95
19	Harmonic impact	Accord with power quality public power grid harmonic harmonic GB/T 14549-93 national standards
20	Transformer:rectify transformer for MF furnace specially	Zs-800-10/0.4	Zs-1200-10/0.4	Zs-1500-10/0.4	Zs-2000-10/0.4	Zs-2500-10/0.4	Zs-3150-10/0.4	Zs-6000-10/0.4
		Primary:3 Phase/10kV, Secondary:6 phase, D/d0,Y11 connection,Impedance 8%
		380V				480V		575V
21	The capacity of low voltage Switch cabinet:from transformer connect 3N/380V power supply to power supply LV switch control cabinet in 3 phase 4 lines(installed in MF power supply romm).	Motor of hydraulic station:5kW, Power supply cool water tower: 10kW, Furnace body coll water tower:10kW, Lighting:10kW, Total capacity:35kW				Motor of hydraulic station:5kW, Power supply coll water tower:15kW Furnace body coll water tower:20kW, Lighting:10kW, Total capacity:50kW