35kV用电工业企业无功补偿设计探究

Research on Reactive Power Compensation Design for 35 kV Electric Industry Enterprises

电力系统运行过程中,变压器、电动机中产生的电流有20%是无功电流,无功电流会增加变压器、发电机以及输电线路的负担,所以会造成一定的电能损失,无法提供满额荷载。因此,需要给消耗无功功率的地方补偿无功功率,减少变压器、输电线路的无功功率,从而达到电力系统功率的平衡,提高变电站的输电能力。本文主要分析了集中无功补偿、分散无功补偿、就地无功补偿3种方式,对其进行了详细的阐述。

The operation process of the power system, current transformer, motor in 20% is the reactive current and reactive current transformer and generator, will increase the load of transmission lines, so will cause some power loss, unable to provide full load. Therefore, it is necessary to compensate reactive power and reduce reactive power of transformer and transmission line, so as to achieve the balance of power system and improve the transmission capacity of substation. This paper mainly analyzes three ways of centralized reactive power compensation, decentralized reactive compensation and in-situ reactive compensation, which are elaborated in detail.