It was made with big-sized meshnet, iron chain line, long wing and short square.

The design essentials of totality arrangement、equipment Choice type、short network、current conducting arm、rotating device of the 120t ladle furnace with double cars double treatment working position by rotating the electrode arm at masteel were introduced.

The short network of 6.

In the three phases submerged electric furnace of ferroalloys, because of the difference of the length and arrangement of the short network and the difference of the voltage of the short network, the way of using the current balancing can not make the three electrodes get the same power (that means there are strong phase and weak phase), and this effects the remelt result.

Against the increasing of short web copper bar's temperature and conductor resistance in a 6300kV.

This artical summarizes the simplify calculation about inductive reactance of submerged arc furnace busbar system,and puts farward it′s different calculating project when selecting to and fro intervein copper line and copper vasal is at vary disposal form.

In connection with the problem of high power consumption on domestic silicon metal electric furnace, it describs some issues that are necessary to pay attention in busbar designing and propose some measures which should be adopted in designing the energy-saving busbar.

It advanced a principle of zero inductance that the inductance of a group of combined buses is made approximately to trend to zero through optimum seeking distance in between reciprocating interlock buses in optimizing design for submerged arc furnace busbar.

A st atic comparison and dynamic analysis of short net performance based on impedan ce optimization design idea were made.

Work out the solution which can improve the natural the inputs of electric capacity group by selecting rational design of furnace transformer and short net,thus,it can meet the requirements of idle work compensation of the electrical net and get good economic benefit.

This paper focused on the improvements of power-input and techniques of electric arc furnace,which proposed the main points of designing and reconstructing the short net.