简介：负载曲线的平均负载系数越高，为达到损耗电能越小，要选用损耗比越小的变压器；负载曲线的平均负载系数越低，为达到损耗电能越小，要选用损耗比越大的变压器。将负载曲线的平均负载系数乘以一个大于1的倍数，通常可取1-1.3，作为获得最佳效率的负载系数，然后按βb＝（1/R）1/2计算变压器应具备的损耗比。 -Introduction: the average load factor of the load curve is higher, the loss of power to achieve smaller loss than to use smaller transformers　load curve of the average load factor is low, the loss of power to achieve smaller transformers, the greater the loss ratio to use. The average load factor of the load curve is multiplied by a factor of more than 1, usually desirable 1-1.3, as the best efficiency of the load factor, and then according to the beta B　 (1/R) 1/2 calculation of the transformer should have the loss ratio.