CAJ | 학술논문

GIS线路全封闭的特点使管道内电流互感器的检定试验回路长,阻抗大,所用设备多,难以升至设备额定电流.电流互感器封装在GIS内部,在特高压电站的现场检定时不能将其独立出来,需要选择合适的检定回路.采用无功补偿的方法可以大大降低升流器和电源容量,而准确的测量出GIS一次回路的参数是选择适当无功补偿方法的前提.本文通过分析GIS一次回路的结构和特点,选择出合适的特高压GIS电流互感器一次检定回路,并研究出一种新型GIS一次回路参数智能测量系统,为特高压GIS电流互感器智能检定技术提供理论指导.
GIS선로전봉폐적특점사관도내전류호감기적검정시험회로장,조항대,소용설비다,난이승지설비액정전류.전류호감기봉장재GIS내부,재특고압전참적현장검정시불능장기독립출래,수요선택합괄적검정회로.채용무공보상적방법가이대대강저승류기화전원용량,이준학적측량출GIS일차회로적삼수시선택괄당무공보상방법적전제.본문통과분석GIS일차회로적결구화특점,선택출합괄적특고압GIS전류호감기일차검정회로,병연구출일충신형GIS일차회로삼수지능측량계통,위특고압GIS전류호감기지능검정기술제공이론지도.
GIS has the characteristics of completely closed,which need more length test circuit,large impedance,more required equipment and difficult rise to rated current.As one part of the GIS,current transformer can't be taken independently when it is on the spot inspection in Ultra-high voltage (UHV) power station.So it is important to select the appropriate testing circuit.Using reactive power compensation method can greatly reduce the capacity of up-flow device and power supply while selecting the appropriate method of reactive power compensation is the premise of measuring the parameters of the GIS primary circuit accurately.In this paper,the structure and feature of the current transformer in the GIS are studied, which are used to select a appropriate primary testing circuit of UHV GIS current transformer. At the same time, a new type of intelligent GIS primary circuit parameter measurement system is developed to provide theoretical guidance for the UHV GIS Current Transformers Intelligent Calibration technology.