主变压器BMH型排油注氮灭火系统改造方案及工程应用  

Renovation Program and Application of the BMH-1A Oil-drain and Nitrogen-filling Fire-prevention System

作　　者：梁猛[1] 邵华[2] 林榕[2] 

机构地区：[1]河北省电力勘测设计研究院,石家庄市050031 [2]河北省电力公司,石家庄市050021

出　　处：《电力建设》2010年第9期64-67,共4页Electric Power Construction

摘　　要：目前,油浸变压器BMH-1A型排油注氮灭火系统的控制回路均存在启动条件单一、接线不合理等问题,容易引起装置误动。通过对该型排油注氮灭火系统的分析,提出在控制回路中增加主变压器三侧断路器位置、增加紧急解锁按钮以及改造探测器接线等措施,保证灭火系统在主变正常运行时不误动,主变着火时不拒动。另外,对BMH-1A型排油注氮灭火系统机械结构进行了改造,并针对变电站实际情况提出工程应用的改造方案。The oil-drain and nitrogen-filling fire-prevention system of BMH-1A transformer has some problems in control circuit such as the simple start-up condition and unreasonable connection,which makes the device prone to start-up by mistake.On the basis of an analysis of the control circuit of the oil-drain and nitrogen-filling fire system,some measures,such as adding circuit breaker position and emergency unlocking button in the control circuit,are proposed in the renovation plan to ensure the fire-fighting system against mistaken start-up under normal condition and against start failure when fire occurs.In addition,the mechanical structure of the BMH-1A oil-drain and nitrogen-filling fire system is reconstructed and a renovation program is proposeds for engineering application according to the real situation of substation.

关 键 词：主变压器 排油注氮 灭火系统 控制回路 机械结构改造 工程应用 

分 类 号：TM63[电气工程—电力系统及自动化]