In substations, Switching operation will give rise to transient overvoltage. For prediction of the interference voltage in the secondary circuits of a potential transformer caused by the transient overvoltage in substation maincircuit, the wide frequency model for the transfer function of the potential transformer (PT) should be constructed. In the paper, a modified transfer function synthesis method is presented. After measuring the transfer characteristic of the PT, the wide frequency model of the PT can be set up with the synthesis method. The method is simple and effective; it can be used to constructed the wide frequency models for the transfer function of the coupling capacitor voltage transformer (CCVT) as well.
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subsystem in substations 变电站子站系统
application in substations 变电站应用
IEC61850 systems in substations IEC61850变电站
insulator srtings in substations 电站绝缘子串
secondary equipments in substations 变电站二次设备
Distribution equipment in substations 变电站配电装置
comprehensive data platform in substations 变电站综合数据平台
In substations, Switching operation will give rise to transient overvoltage.
在变电站内，开关的操作将产生瞬态过电压。
To solve these problems, the IEC constitutes the standard of Communication Networks and Systems in Substations (IEC 61850).
国际上为了解决这个问题，推出了IEC 61850标准，这个标准是变电站无缝通信系统的基础。
The electromagnetic compatible environments in substations installed with new SVC devices need to be re-evaluated, to provide sufficient immunity measures.
在安装新型静态无功补偿器(svc)的变电站，其电磁兼容环境需要重新评估，以提出足够的电磁抗扰性措施。
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