Abstract: Based on the new fire detection technology, the new water fire extinguishing agent's water spray and the fire cannon technology, the converter transformer simulation test platform was set up, and the fire detection and fire extinguishing tests under different scenarios were carried out. The research shows that the new detector for the converter transformer can respond quickly, and the water spray and fire extinguishing system based on the water system extinguisher can quickly extinguish the converter transformer fire and have an effective cooling effect. According to the research results and the actual situation of the project, a set of fire protection design scheme suitable for converter transformer was proposed.

Key words: :converter transformer, water-based extinguishing agent, fire cannon, water spray, fire detection