一种适用于油浸变压器的智能灭火控制系统设计  

Design of an intelligent fire extinguishing control system for oil immersed transformer

作　　者：张立 刘栋梁[1] 雷乘龙 刘虹斌 ZHANG Li;LIU Dongliang;LEI Chenglong;LIU Hongbin(Tianshui Power Supply Company of State Grid Gansu Electric Power Company,Tianshui 741000,China)

机构地区：[1]国网天水供电公司,甘肃天水741000

出　　处：《电气应用》2022年第7期98-102,共5页Electrotechnical Application

摘　　要：目前控制主变压器排油注氮灭火装置系统是通过电磁继电器协作来达成逻辑判断和出口动作,但制造电磁继电器的厂家数目巨大、质量良莠不齐,面对干扰有较差的应对能力,故出现了较多由于继电器误动作导致变压器跳闸的事件。因而,保证主变压器排油注氮灭火控制装置可靠运行是维持电网稳定的基石。设计了一种适用于油浸变压器的智能排油注氮灭火控制系统,以控制装置微机化为思路,以强大的微电子技术为支撑,并参考微机型变压器的非电量保护装置,与当前排油注氮灭火装置经典二次逻辑结合,研发出性能稳定、自动化水平高的微机型主变压器排油注氮灭火装置,实现对传统控制装置的整体替换。The existing control system of main transformer oil drainage nitrogen injection fire extinguishing device is a large number of electromagnetic relay combinations to achieve logical judgment and export action function.Due to the large number of electromagnetic relay manufacturers,the difficulty of quality control management and the weak anti-interference ability,there have been many misoperation events caused by relay faults,resulting in transformer fault tripping.Therefore,how to improve the reliability of the main transformer oil injection nitrogen extinguishing control device is an important part to ensure the safe operation of the power grid.In this paper,an intelligent nitrogen injection fire extinguishing control system for oil-immersed transformers is designed.With the support of mature microelectronic technology and the reference of microcomputer-based transformer non-electric protection device,combined with the typical secondary logic of the current nitrogen injection fire extinguishing device,a set of microcomputer-based main transformer nitrogen injection fire extinguishing device with reliable performance and high automation level is developed,which realizes the overall replacement of the traditional control device.

关 键 词：变压器 排油注氮 控制系统 一体化设计 

分 类 号：TM411[电气工程—电器] TP273[自动化与计算机技术—检测技术与自动化装置]