基于DSP的变压器保护跳闸逻辑测试仪的研究

Research on the Tripping Logic of Transformer Protection detector Based on DSP

本文基于DSP（数字信号处理器）研发了一种变压器保护跳闸逻辑的测试装置，解决传统测试方法中存在的耗时、费力和准确性低的问题。设计以信号开入检测回路为主拓扑，扩展数码管显示及LED指示电路，提出装置的触发启动计时，捕捉到脉冲信号停止计时的控制策略。通过现场验证，实现了安全、可靠、直观、高效地对变压器保护跳闸逻辑进行测试。

In this paper, based on DSP （digital signal processor）, a test device for transformer protection trip logic was developed, to solve the problem of time-consuming, laborious and low accuracy in the traditional test method. The design took the signal as the main topology, expanded the digital tube display and the LED indicator circuit, put forward the trigger timing of the device, and capture the control strategy of stopping the timing of the pulse signal. Through field verification, a safe, reliable, intuitive and efficient transformer protection trip logic was tested.