变压器充氮灭火装置是专门为油浸电力变压器设计的消防保护系统。油浸电力变压器是变电站和发电厂的主要设备之一。变压器油箱内含有大量易燃物质，一旦着火将会迅速蔓延并发生爆炸，从而造成重大灾害。为防止以上事故发生，型变压器充氮灭火装置在电力变压器将要出现火灾事故的瞬间迅速动作，排除变压器内上层热油，往变压器内部充入氮气，隔绝氧气，保护主变压器。
Transformer nitrogen fire extinguishing device is specially designed for oil immersed power transformer fire protection system. Oil immersed power transformer is one of the main equipments in substations and power plants. Transformer oil tank contains a large number of flammable materials, once the fire will spread rapidly and explosion, resulting in major disasters. In order to prevent the occurrence of the above accidents, the nitrogen extinguishing device of the type transformer will quickly move quickly in the power transformer, remove the hot oil in the upper layer of the transformer, fill the transformer with nitrogen, isolate the oxygen and protect the main transformer.
变压器充氮灭火装置采用特种感温探测器为报警元件，动作可靠准确，采用高纯氮气作为灭火剂，对变压器及环境无污染，控制器对灭火设备上各关键部位的工作状态进行监测且能声控报警是大中型变压器方获得理想设备。
The special temperature detector is used as the alarm element in the transformer filling and extinguishing equipment. The action is reliable and accurate, the high purity nitrogen is used as a fire extinguishing agent, the transformer and the environment are not polluted. The controller can monitor the working state of the key parts on the fire extinguishing equipment and can sound the alarm is the ideal equipment for the large and medium-sized transformer.
结构：
Structure:
排油-注氮式变压器灭火设备，由灭火箱、氮气瓶、开启阀、注氮关路、排油管路、快速排油阀、探测器、关闭阀和控制箱等组成。
The oil discharge - nitrogen - type transformer fire extinguishing equipment is composed of fire extinguishing box, nitrogen cylinder, opening valve, nitrogen injection, oil discharge line, fast oil discharge valve, detector, shutoff valve and control box.
工作原理：
Working principle:
当变压器内部发生故障，油箱内部压力急剧增加，引起气体继电器跳闸触电动作，若变压器油起火时，探测器的感温元件熔断。触头接通，继电器 K2 线圈带电，不延时常开触点闭合，电磁机构动作，重锤把快速排油阀打开。
When the internal fault occurs in the transformer, the internal pressure of the tank increases sharply, causing the gas relay to tripping and touching the electricity. If the transformer oil fires, the sensor's temperature sensing element is fusing. The contacts are connected, the relay K2 coil is charged, the contacts are closed frequently without delay, the electromagnetic mechanism is operated, and the heavy hammer opens the quick oil discharge valve.