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采用埋入式光纤Bragg光栅温度传感器,实现了对干式空心电抗器固化过程中各包封层的温度监测。在制作过程中,将温度传感器埋在干式空心电抗器导线外包封表面,连接光纤从电抗器上沿引出。电抗器绕线与包封完成后放入干燥室内固化,监测电抗器各包封层在固化过程中的温度变化。通过监测得到了电抗器各包封温度变化的曲线图,当炉温示值稳定在140℃时,各包封温度低于预期,分布在105~125℃之间,且由外向内逐渐降低。通过对干式空心电抗器固化过程中的温度进行监测,可实时了解并改进干燥固化过程中出现的问题,对保证电抗器的质量及安全具有重要意义。
The buried fiber Bragg grating temperature sensor was used to monitor the temperature of each encapsulation layer during the curing process of dry hollow reactor. During the manufacturing process, the temperature sensor is buried on the outer surface of the dry-type hollow reactor conductor and the connecting optical fiber is led out from the upper edge of the reactor. Reactor wound and wrapped into the drying chamber after the completion of solidification, monitoring the reactor reactor sealing layer in the curing process temperature changes. The curves of reactor envelope temperatures were obtained by monitoring. When the oven temperature was stable at 140 ℃, the envelope temperatures were lower than expected and distributed between 105 and 125 ℃, and gradually decreased from outside to inside. By monitoring the temperature of the curing process of the dry hollow reactor, it is possible to understand and improve the problems occurring in the drying and solidifying process in real time, which is of great significance for ensuring the quality and safety of the reactor.