浅谈油浸式变压器绕组温度表变流器档位选择问题及建议

目前,随着国家社会经济的高速发展,油浸式电力变压器的数量越来越多,其作为电力系统中最为重要的设备,其安全稳定运 行至关重要。变压器油温表盒绕温表是监测电力变压器安全稳定运行特征的重要器件,能够有效反映变压器故障与否。因此需要油温表和 绕温表进行有效维护和检验。本文分析了当前运维中存在的问题,介绍绕组温度表(计)的工作原理,变流器的档位选择原则和方法,同 时分析变流器工作的优缺点,针对当前存在的问题提出了改进建议。

Problems Related to Excitation Winding Surface Temperature Measurement of a Salient Pole Synchronous Generator in Rotation

This paper addresses some of the problems related to direct surface temperature measurement of a salient pole synchronous generator excitation winding in rotation. Excitation winding temperature is used for determining the dynamic limit in a PQ diagram. The paper also addresses procedures of improving the accuracy of surface temperature measurement using the contact DS 18B20 digital temperature probes. The paper also provides experimental results of direct temperature measurement of the excitation winding surface conducted in the salient pole synchronous generator in the rotation.