主变冷却器系统铂热电阻温度传感器应用分析及故障对策探讨

Application Analysis and Fault Countermeasures of Platinum Thermal Resistance Temperature Sensor in Main Transformer Cooler System

本文通过研究铂热电阻温度传感器(PT100)测温原理,统计分析某水电厂主变冷却器系统铂热电阻温度传感器运行数据及运行工况,总结提炼出铂热电阻温度传感器测量不准确的原因,针对存在的问题,提出相应对策。

By studying the principle of temperature measurement of PT thermistor temperature sensor(PT100),the operation data and operating conditions of PT thermistor temperature sensor in main transformer cooler system of a hydropower plant were analyzed statistically,and the reasons for inaccurate measurement of PT thermistor temperature sensor were summarized and extracted.