Design and Application of Intelligent Sensing Terminal for Distribution Transformer

In this paper, an intelligent sensing terminal for the distribution transformer is designed. The intelligent sensing terminal consists of the high-voltage sensing ontology and the edge computing terminal. The high-voltage sensing ontology is used for the voltage and current sensing measurement of the high voltage incoming line of distribution transformer. The edge computing terminal collects a variety of transformer (including the high-voltage sensing ontology) sensing information to the transformer loss calculation, fault detection and other edge computing based on the multi-information sensing. In this paper, the sensing principle of high-voltage sensing ontology is introduced in detail and the error principle of voltage sensing is analyzed. In addition, the accuracy of voltage and current sensing is tested, and several typical applications of using the sensing terminal are given. The sensing terminal is a typical device in the sensing layer of the Power Internet of Things, which is of great significance to achieve the safe, economic operation and efficient power consumption of distribution transformer.