CAJ | 학술논문

特高压(ultra high voltage，UHV)气体绝缘开关设备(gas insulated switchgear，GIS)的瞬态外壳电压(transient enclosure voltage，TEV)具有陡波前、高幅值和宽频带等特点，可能危害到接触GIS设备的运行人员安全及GIS设备监控系统的正常运行。为此，准确测量TEV是十分必要的。该文采用电阻性阻抗分压法测量TEV，提出TEV典型波形特征和测量要求；依据测量基本要求，研制了抗强电磁干扰的TEV测量装置，并对装置进行一系列的性能试验及电磁兼容与绝缘耐压试验；建立了测量装置和测量/接地屏蔽电缆的等效电路模型，通过仿真计算和试验测试规定了这两种屏蔽电缆的长度上限；最后将测量装置应用于现场 UHV GIS设备的TEV多测点全过程同步测量，结果表明TEV测量装置满足UHV的GIS设备的TEV现场测量。因此，采用文中的TEV测量装置能够获得GIS外壳不同位置的TEV波形特征及分布规律，为TEV的仿真建模提供试验数据。
특고압(ultra high voltage，UHV)기체절연개관설비(gas insulated switchgear，GIS)적순태외각전압(transient enclosure voltage，TEV)구유두파전、고폭치화관빈대등특점，가능위해도접촉GIS설비적운행인원안전급GIS설비감공계통적정상운행。위차，준학측량TEV시십분필요적。해문채용전조성조항분압법측량TEV，제출TEV전형파형특정화측량요구；의거측량기본요구，연제료항강전자간우적TEV측량장치，병대장치진행일계렬적성능시험급전자겸용여절연내압시험；건립료측량장치화측량/접지병폐전람적등효전로모형，통과방진계산화시험측시규정료저량충병폐전람적장도상한；최후장측량장치응용우현장 UHV GIS설비적TEV다측점전과정동보측량，결과표명TEV측량장치만족UHV적GIS설비적TEV현장측량。인차，채용문중적TEV측량장치능구획득GIS외각불동위치적TEV파형특정급분포규률，위TEV적방진건모제공시험수거。
Transient enclosure voltage (TEV) in ultra high voltage (UHV) gas insulated switchgear (GIS) has steep rise time of waveform, high amplitude, wide frequency band and other characteristics, these may affect the safety of operating personnel touched with GIS and normal operation of GIS monitoring devices. For these reasons, it is necessary to accurately measure TEV. A method of resistive impedance divider was used to measure TEV, typical waveform characteristics of TEV and basic requirements of TEV measuring were proposed; Based on basic requirements of measuring, TEV measuring device of strong anti- electromagnetic interference was developed, a series of performance tests and electromagnetic compatibility and insulation tests were carried out on the device; Equivalent circuits of measuring device and measuring/grounding shielded cables were established, through simulation and experimental test, these maximum lengths of both shielded cables were respectively defined; Finally, the measuring device was applied to TEV multiple measuring points of a whole process simultaneous measurement in UHV GIS on site, these results show that TEV measuring device met TEV measuring on UHV GIS site. Therefore, TEV waveform characteristics and distribution of different locations on GIS enclosure can be obtained by TEV measuring device, these experimental data are provided for TEV modeling and simulation.