变压器并联自动化装置在配网台区中的应用分析
2021-01-12王楚雄
王楚雄

[摘 要]传统的配网系统采用变压器单独运行模式,其弊端在于用电高峰时段,变压器所带负荷电流为最大,然而,其他变压器则处于空载运行状态,这样不仅影响了变压器的运行效率,还将增加系统运行成本。文章重点分析变压器的并联运行原理和自动化系统功能,以及并联运行的实施方案与对应优势。
[关键词]变压器;并联运行;原理;方案;优势
[中图分类号]TM41 [文献标志码]A [文章编号]2095–6487(2021)11–0–03
Application Analysis of Transformer Parallel Automation Device in Distribution Network
Wang Chu-xiong
[Abstract]Abstract: The traditional distribution network system adopts the transformer alone operation mode. Its disadvantage is that the load current carried by the transformer is the largest during the peak power consumption period. However, other transformers are in no-load operation, which not only affects the operating efficiency of the transformer, but also Will increase system operating costs. The article focuses on analyzing the principle of parallel operation of transformers and the functions of the automation system, as well as the implementation plan and corresponding advantages of parallel operation.
[Keywords]transformer; parallel operation; principle; scheme; advantage
要想實现变压器的安全、高效运行,可以将几个变压器并联运行。通过并联运行能够确保安全、平稳、持续供电,从而提高供电系统的运行水平,减少不良损耗,提高系统运行效率。这样才能真正地确保电力系统的供电服务水平,也能确保电力系统的运行质量。
1 变压器并联运行的原理
将两台以上变压器并联,接入配网系统,不仅能确保用电负荷,也能提高供电的安全性、可靠性与稳定性。低压端供电选择母联分段模式,变压器各自为自己的母线提供电能,如果某台变压器发生故障,或者某个间隔设备处于检修状态时,低压母线并列运行,以此来维持对用户的安全、持续供电。电力系统运行中经常出现因用电高峰时段而导致低载率、空载率都较高的问题。参照现实的测量统计数据,因为这两大问题导致了变压器能耗率较高,达到每月实际用电量的15 %,正是因为昼夜用电量差异较大,负荷增减呈很大落差,如此往复,将增加负荷的周期性变化,此时则应调节运行中的变压器数量,选择经济性运行方式。……
