便携式快前沿紧凑型现场冲击试验

Research on On-site Impulse Test Device of the Portable and Compact 2 MV Very Fast Transient Overvoltage Generator

介绍一种便携式快前沿紧凑型现场冲击试验装置,该装置通过增加GIS母线长度来补偿回路固有电感的影响,通过控制陡化间隙的距离和波头电阻的大小,来产生雷电冲击、操作冲击电压以及VFTO多种冲击电压以满足现场冲击试验的需要,并可以通过控制陡化间隙的击穿电压来控制输出电压幅值,其电压波幅值可高达2 MV、主振频率为6 MHz的电压波,满足了特高压试验对特快速瞬态过电压以及雷电冲击电压模拟的要求。

In the above background,the on-site impulse test device of the portable and compact 2 MV very fast transient overvoltage generator was developed,which has the function of application,testing,research and development. The device generates variety of impulse voltage,like lightning impulse,switching impulse voltage and very fast transient overvoltage to meet the needs of field impact test,by increasing bus length to compensate the effects of inherent loop inductance,by controlling the distance of the peaking gap and the size of the wave front resistance. Meanwhile it can change the output voltage amplitude by control breakdown voltage of the peaking gap,the voltage amplitude being as high as 2 MV and the main vibration frequency reaching to 6MHZ,meeting the simulation requirements of VFTO and LI. The device provided the scientific basis for the maintenance and operation of the GIS.