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在建筑电气设计中,应首先考虑选用高效节能的产品,以期降低产品自身的能耗。1.选择高效节能的变压器变压器的有功损耗由两部分组成:一部分为铁损,是铁心的涡流损耗和铁心的漏磁损耗引起的,与负荷大小无关;另一部分是铜损,即二次侧绕组短路而电流达到额定时的有功损耗,也称为短路损耗。变压器的无功损耗,主要由产生磁通的无功功率和消耗在变压器一、二次绕组上的无功功率组成。由此可见,选择新型的低能耗变压器和合理选择变压器的负载率,节能意义非常重大。在选择变压器容量
In the electrical design of buildings, we should first consider the use of energy efficient products, with a view to reducing the energy consumption of the product itself. 1. Select energy-efficient transformer Transformer active loss consists of two parts: one part of the iron loss, is the core of the eddy current loss and core leakage caused by leakage, and the load size has nothing to do; the other part is the copper loss, the secondary side Winding short-circuit and the current reaches the rated active loss, also known as short-circuit loss. The reactive power loss of the transformer is mainly composed of the reactive power generated by the magnetic flux and the reactive power consumed on the primary and secondary windings of the transformer. Thus, select a new type of low-power transformers and a reasonable choice of transformer load factor, energy-saving significance is very significant. Select the transformer capacity