In today's world, both developed and developing countries, are subject to different levels of transformer safety problems. This summer, the country has 19 cities have power cuts. In foreign countries, the United States on August 14 power outage incident led to more than 100,000 people into the dark, day power loss of up to 30 billion US dollars. Subsequently, the United Kingdom London has also occurred in a large area blackout, tens of thousands of people affected. Continued power outages affect people's daily lives and quality of life.
    Transformer failure is usually accompanied by the arc and discharge and intense combustion occurred, then the power equipment that is short-circuit or other failures, ranging from machine stall, lighting equipment extinguished, causing fire in heavy casualties. So to ensure that the safe and stable operation of the transformer by the world wide attention.
    Transformer once the fire, the transformer should be immediately isolated from the system, the transformer fire extinguishment, engineers pointed out that the fighting should be used in 1211 foam extinguishing agent and dry powder and other non-conductive fire extinguishing agent, should immediately take the correct fire prevention measures, Type transformer oil in the transformer on the roof of the fire, you should open the lower part of the oil drain valve immediately put oil, oil and oil into the pit, to take measures to prevent re-combustion. Shanghai Meitian Co., Ltd. Yuan engineers also pointed out: the transformer cooling heat dissipation is critical in the use of the transformer to prevent oil from the transformer out of oil, the transformer oil pit should be placed in a number of pebbles to play the role of cooling heat. If the transformer once the fire, the transformer should be immediately isolated from the system, if not isolated, the application of dry powder fire extinguishers, carbon dioxide fire extinguishers and other fire. Yuan engineers at the meeting also pointed out: the extinguishing transformer fires, should be treated differently, if the oil overflow in the transformer cover on fire, the application of sand and dry powder fire extinguishers, and take measures to prevent the expansion of the fire. If the internal fire, oil disposal should be carried out, and at the same time fire.
    Transformer is one of the important equipment in the power grid. Although with arrester, differential, ground and other multiple protection, but because of the internal structure of the complex, electric field and thermal field uneven and many other factors, the accident rate is still high. China in the last century, 70 years 10 years, 110KV and above the transformer annual average insulation accident rate of about 17.66 times the number of times, major accidents have also occurred from time to time. Therefore, by the transformer case of fire treatment training, the staff mastered the transformer in the course of the emergency fighting measures to improve the safe use of the transformer factor.