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1 什么叫功率因数和无功补偿1.1功率因数:电网中的电气设备如电动机、变压器等,属于既有电阻又有电感的电感性负载.电感性负载的电压和电流的相量间存在着一个相位差,通常用相位角φ的余弦值cosφ来表示.cosφ称为功率因数,也叫力率. 功率因数是反映电力用户用电设备合理使用状况、电能利用程度和用电管理水平的一项重要指标.
1 What is the power factor and reactive power compensation 1.1 Power Factor: Electrical equipment in the grid such as motors, transformers, etc., are both inductive and inductive inductive load inductive load voltage and current phasor there is a The phase difference is usually expressed by the cosine cosφ of the phase angle φ, which is called the power factor, also known as the power factor, which is a factor that reflects the rational use of electric equipment, power utilization and power management level Important indicators.