电子式互感器整周波延时检测技术研究

Research on the integral cycle delay detection technology of electronic transformer

随着数字化变电站的建设,电子式互感器等智能设备得到广泛应用。在电子式互感器实现数字化过程中,存在整周波延时现象。针对导致电子式互感器整周波延时的原因进行了分析,提出了检测原理和方法。并根据脉冲触发功率源及首周波输出功率源的理念,设计了相关检测设备。经分析,该设备能够以最直观的、最准确的方法对电子式互感器是否存在整周波延时进行检测。

With the construction of the digital substation, intelligent equipment such as electronic transformer is wide-ly used.The integral cycle delay phenomenon exists in the process of electronic transformer’ s converting analog signal into digital signal.In this paper, the reason of the integral cycle delay of electronic transformer is analyzed.The de-tection principle and method for such phenomenon are also proposed.Related testing equipment is designed according to the concept of power source triggered by a pulse and the first-frequency-output power source,.The analysis show that the equipment can help us to know if there is an integral cycle delay for the electronic transformer in the most in-tuitive and most accurate way.