Four aspects of transformer energy saving
The energy saving of transformer should be considered from four aspects:
On the one hand, it is to reduce the material consumption of transformer. Silicon steel sheet, steel, insulating material, electromagnetic wire and transformer oil are all necessary materials for transformers. These materials consume a lot of energy. The saving of these materials also saves energy indirectly.
On the other hand, in order to reduce the loss of transformer.
The loss of transformer includes no-load loss and load loss. In order to reduce the load loss, it is necessary to use more copper materials or transposed conductors; In order to reduce the no-load loss, reduce the magnetic density by using more silicon steel sheets or good silicon steel sheets, which will increase the manufacturing cost of the transformer and the corresponding sales price. Therefore, it is necessary to consider how long the extra money needs to be recovered (i.e. the recovery period).
"Physical examination" report of transformer industry (V)
How can the capacity of distribution transformer be "short of weight"
In this summer, many communities in Nanjing have been plagued by power outages. The peak of electricity is the reason why electrical equipment is so "suck"? This makes residents particularly angry in this hot summer.
According to the analysis of the power company, since the beginning of summer, due to the rapid rise of power demand, insufficient output of units, insufficient power input and other factors, the power supply is tight, the load pressure of the power grid is too large, and some lines even operate overload, which poses a severe challenge to the safety of the power grid.
However, the reporter learned in the investigation that in addition to the above reasons expressed by the power company, the transformer, as one of the key equipment in the field of distribution, should bear a large part of the responsibility.
"At present, the interests of many distribution transformer manufacturers are deeply affected, and the transformer capacity delivered is far from enough. The user originally purchased 1000 KVA transformer, but it was only 900 KVA at the time of delivery, or even 800 kVA. Although it can meet the daily power consumption of the community, at the peak of power consumption, the power consumption will increase, and the transformer will be overloaded, so there will be continuous failures." In the interview, an unnamed insider told reporters.
