For iron and steel enterprises, achieving continuous and effective improvements in iron-making and steel-making efficiency remains a critical objective. Future success in this highly competitive market will belong to enterprises capable of realizing high-efficiency, energy-saving, and clean production processes. Variable Frequency Drives (VFDs) serve as a key technological enabler to help achieve these operational goals.
Across various stages of steel production - including coking, sintering, blast furnace iron-making, electric arc furnace (EAF) steel-making, dedusting fans, refining furnace ventilators, gas blowers, and water supply pumps - RENLE's medium-voltage VFD solutions deliver substantial benefits in energy conservation and emission reduction.
RENLE medium-voltage drives enable precise control of fan air induction volume, tailored to the specific requirements of each smelting process stage. This optimization significantly reduces thermal dissipation in electric furnaces, resulting in indirect energy savings. Post-implementation data indicates an average equipment energy savings rate of up to 26%. The reduction in power consumption not only lowers smelting costs but also decreases environmental pollution - generating comprehensive benefits for steel production efficiency and operational performance.
Proven Success in the Field
In 2020, a total of 13 RENLE VFDs - including 10kV/220kW × 1, 10kV/280kW × 1, 3kV/560kW × 2, and 10kV/710kW × 6 - were successfully commissioned at Wuhan Iron and Steel Co., Ltd., which has an annual output of 250,000 tons. The load type is water pump. Even under extreme conditions with 95% ambient humidity, the VFDs have maintained continuous, stable operation. Their exceptional product quality has earned high praise from the customer.
Products Description
High Voltage Drive
Employing cascaded power cell technology, the RNHV 2000 series high voltage drive directly generates 6kV/10kV output as a high-high voltage source inverter.
