新型高电压测量装置——数字光电式串联感应分压器的研制

An inductive High Voltage Divider with Digital Output using Optoelectronic Modules

笔者研制了一台220kV数字式串联感应分压器。这是一种数字量输出型电子式电压互感器,是用来测量交流高压输电系统的电压并向测量仪表和保护装置提供信号的装置。数字式串联感应分压器由若干个不饱和电感器串联而成。介绍了装置的原理、结构和技术条件,还列出了试验项目和结果。结果表明,该设备能满足IEC60044-7的要求,准确度能达到0.2级,可用于高压电力系统。

This paper introduces a 220 kV inductive voltage divider with digital outputs using optoelectronic modules. This is a type of electronic voltage transformer with digital outputs, which can measure the high voltage of the power system and give suitable signals to the secondary measuring and relay protection instruments. It comprises some non-saturation inductors in series. The principle, construction and technical specification as well as test items and results for verification are presented. The results show that 0.2% of accuracy of the equipment can be obtained and the requirements which are given in IEC60044-7 can be satisfied. Therefore it can be applied in the HV electric power system.