变压器用可编程数字式线圈温度计

Programmable Digital Winding Thermometer for Transformer

对液压—电热式线圈温度计进行了分析 ,提出了可编程数字式线圈温度计的设计思路 ,通过对可编程逻辑器件(PL D)内部逻辑关系进行编程 。

Based on the observation of normal winding thermometer hydraulic pressure and electrothermal winding thrmometer (HWT), this article gives a new type of winding thermometer programmable digital winding thermometer(PDWT) in order to implement more accurate measurement of the temperature of transformer winding. It reflects the influence of load current and structure type on winding temperature by the means of writing data into the programmable logical device (PLD) by the manufacture or user. The advantage of this device is also given.