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三相电容式取电PT电源系统原理研究及应用

Research and Application of Three-Phase Capacitance Power Take-off PT Power System
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摘要 自动化装置的取电问题一直是配网线路升级改造的一大瓶颈。本文阐述了电磁式电压互感器取电、电流互感器取电、太阳能发电装置取电的特点,实施和应用中投资大,接线复杂且不可靠,受运行环境、气候变化及线路负荷等外界因素的影响,限制了配网自动化的发展。并针对上述取电方式的不足,提出一种利用高压电容分压的三相电容式取电PT电源系统,阐述了该电源系统的基本原理、主要组成部分及各部分的特点。 The problem of power take-off of automation equipment has always been a major bottleneck in the upgrading of distribution network lines.This paper describes the characteristics of electromagnetic voltage transformers,power transformers,and solar power generation.The implementation and application are either The investment is large,the wiring is complicated and unreliable,and it is affected by external factors such as operating environment,climate change and line load,which limits the development of distribution network automation.In view of the above-mentioned shortage of power-taking methods,this paper proposes a partial voltage division using high-voltage capacitors.Three-phase capacitive power take-off PT power system,and explain the basic principle of the power system and the main components and characteristics of each part.
作者 吕铁疆 Lyu Tie-jiang
出处 《电力系统装备》 2019年第15期26-27,共2页 Electric Power System Equipment
关键词 取电 高压电容 电容式取电PT power take-off high voltage capacitor capacitive power take PT
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