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    一． 工頻熔鐵爐  
容量（t）             功率(kw)                                    
1．5               450                       
3                 750                       
5                 1000                      
10                1500                      
20                2500                      
30                3000                      

二． 中頻熔鋼爐  
容量（t）             功率(kw)          頻率(Hz)       
0.1                100             2500        
0.2                160             2500        
0.5                350             1000        
1                   600             1000        
2                   1000            500         
5                   1500            500         
10                  2500            200         
20                  4800            200