The energy-saving design of the power distribution system should consider the rationality of the solution, the energy consumption of the power supply line and the system equipment. According to factors such as load capacity, characteristics of power equipment, power supply distance and distribution, the power supply voltage and power supply and distribution system are rationally designed. The power supply and distribution system should be as simple and reliable as possible and easy to operate. Some electrical equipment in the power distribution system is inductive, which will generate a layer of reactive current and increase the loss of line power.
In the design, power equipment with high power factor should be used as much as possible; inductive power equipment can use power equipment with compensation capacitors, which can improve the power factor and reduce the reactive current of the whole circuit. The calculation formula of the active loss of the transformer: ΔΡ=Ρo+β2Ρk. Ρo is composed of leakage flux loss and core eddy current loss. Its value is related to the core material and manufacturing process. It is best to choose energy-saving transformer. Ρk is the magnitude of the resistance and winding current of the transformer winding, and is related to the square of the load factor. Generally, a winding with a small resistance value should be selected.
In the design, power equipment with high power factor should be used as much as possible; inductive power equipment can use power equipment with compensation capacitors, which can improve the power factor and reduce the reactive current of the whole circuit. The calculation formula of the active loss of the transformer: ΔΡ=Ρo+β2Ρk. Ρo is composed of leakage flux loss and core eddy current loss. Its value is related to the core material and manufacturing process. It is best to choose energy-saving transformer. Ρk is the magnitude of the resistance and winding current of the transformer winding, and is related to the square of the load factor. Generally, a winding with a small resistance value should be selected.
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