10kV变压器配电模式探讨

STUDY ON DISTRIBUTION MODES OF 10 kV TRANSFORMERS

对 10 k V变压器 2种不同的典型配电模式进行潮流计算后 ,通过网损、电压损失、经济性、可靠性、投资收益比、远期发展等 6个方面的技术经济比较 ,得出了采用 10 k V电源接近低压负荷点、小容量变压器和短低压导线的配电模式是较经济、合理的结论 ,它能使配电网损耗大、电压损失大、故障多、经济性差等缺点得到改进 ,投资收益比得到提高 ,适应远期发展 ,能为用户提供优质电能 。

After calculating the power flows of two typical distribution modes of 10kV transformers and through the technical economical comparison in six aspects such as network power losses, voltage loss, economy, reliability, ratio of investment to income and future development, the obtained results are as follows. The power source of 10kV network should be adjacent to the load centre and it is economical and reasonable to configure low capacity transformer and short length of low voltage lines in the 10kV distribution networks. Applying these measures to the distribution networks, not only disadvantages in 10kV distribution networks such as high power losses, excessive voltage loss, high failure rate and low economic effect can be improved, but also high ratio of investment to income can be obtained. Otherwise, such structure can fit the future development of distribution network, and the power supply enterprises can attain higher benefit.