Power transformer is a static power equipment that changes the magnitude of AC voltage, and is one of the core equipment in the power system. In the process of energy transmission and distribution, power transformer is the core of energy conversion and transmission, and is a necessary path for various industries and households in the national economy to source energy.

If a transformer malfunctions, it will affect the safe and stable operation of important equipment in the power system. Once an accident occurs, it will cause significant economic losses. Hengfengyou Electrical Engineer analyzes various power transformer accidents, identifies the causes, summarizes methods for handling accidents, and minimizes accident losses to minimize damage to the system.

Transformer fire is also a dangerous accident, as there are many combustible substances in the transformer, which may explode or expand the fire if not handled in a timely manner.



The main reasons for transformer ignition are:



① Damage and flashing of the casing, oil flowing out under the pressure of the conservator and burning on the top cover;



② The internal fault of the transformer caused the shell or radiator to break and the burning transformer oil to overflow.



If the transformer catches fire, the following measures should be taken promptly:



① Disconnect the circuit breakers on each side of the transformer, cut off the power supply on each side, and quickly switch on the backup transformer to restore power supply;



② Stop the operation of the cooling device;



③ When the main transformer and high voltage auxiliary transformer catch fire, the generator should be disconnected first;



④ If the oil burns on the top cover of the transformer, the lower emergency drain valve should be opened to drain the oil to the appropriate position. If there is a fire inside the transformer, oil cannot be discharged to prevent the transformer from exploding;



⑤ Quickly use fire extinguishing equipment to extinguish the fire. For example, use dry fire extinguisher or foam fire extinguisher to extinguish the fire. Notify the fire brigade to extinguish the fire if necessary. When such accidents occur, the transformer protection should act to disconnect the circuit breaker. If the circuit breaker is not disconnected due to a malfunction, manual action should be taken to immediately disconnect the circuit breaker and open the isolation switch that may lead to the transformer power supply.

Hengfengyou is a specializing in the production, manufacturing and sales of electrical distribution products, mainly engaged in the production and global sales of distribution transformers, Low voltage switchboard,  Special Transformer, etc. We have provided OEM / ODM services for customers in Europe, America and the Middle East for 20 years. It can provide customized production of transformer core, transformer coil and transformer shell. Hengfengyou Electric will provide you with the best electrical product solutions. https://www.hengfengyou.com  ； info@hengfengyou.com   WhatsApp：+86158 5325 2696（Jack）    +86158 5326 5269（Alisa）