应用有功负荷曲线和无功补偿选择配电变压器容量

Selection of distribution transformer capability according to active power load curve and reactive load compensation

分析了按负荷曲线和无功补偿来选择配电变压器容量的特点,并对传统的按视在负荷容量选择配电变压器的方法作了简要分析。给出了依据负荷曲线和无功补偿来选择配电变压器的容量原理。重点阐述了依据负荷曲线和无功补偿来选择配电变压器的容量分析过程和有关技术参数的选择和配置问题。并对所选择的变压器过负荷能力进行了校验。依据负荷曲线和无功补偿选择出来的变压器容量,即能够满足正常工作需要,又能够满足过负荷的需要。

Characteristic of choosing distribution transformer capability according to load curve is described and conventional method of choosing distribution transformer capability on the principle of apparent load is also introduced in a nutshell. Principle of choosing distribution transformer capability according to load curve is given. Parsing process of choosing distribution transformer capability according to active power load curve, parameter configuration and parameter choice are expounded in detail. Transformer overload ability is tested in this paper. It selects distribution transformer capability according to active power load curve,which does not meet steady-state operation requirement, but satisfies over load need.