随着智能化变电站建设中对各类主设备在线监测的要求,发现传统的主变压器测温系统,已经不能适应当今的智能化技术要求。在列举了传统测温技术存在不足的情况下,介绍了一种光纤测温技术的工作原理和特点,以及将主变压器绕组热点光纤测温技术应用到泸定站改造工程中的案例。通过对主变压器在线远程绕组热点光纤测温,解决了监测变压器内部线圈热点温度盲区的难题,同时也为今后变压器的安全运行,积累和提供准确、可靠的在线动态热点温度监测值。%As the on-line monitoring requirements of all kinds of primary equipment on intelligent substation construction, it has been found the traditional transformer temperature measurement system already cannot adapt to the current intelligent technical requirements. Under the condition of shortage of the traditional tem- perature measurement technique on the enumeration, this paper introduces a kind of optical fiber temperature measurement technology principle and characteristic, and the main transformer winding hot spot temperature sensing technology is applied to the Luding substation in the renovation project of case. Based on the main transformer winding hot spot temperature on-line monitoring of optical fiber, solves the transformer winding hot-point temperature blind area problem, but also for the future of the safe operation of the transformer, accumulation and to provide accurate, reliable online dynamic hot spot temperature monitoring value.
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