Protective Measures for Oil - immersed Transformer

Oil-immersed transformers protection measures Oil-immersed transformers should pay special attention to its fire safety measures. 1, when the adjacent two oil-immersed transformers between the fire spacing does not meet the requirements, should be set to fire the top of the wall or fire plus fire water curtain. Single-phase oil-immersed transformers can only be set between the fire wall or fire water curtain. 2, the oil content of 2500kg or more oil-immersed transformers and oil in the 600kg-2500kg between the oil-filled electrical equipment, the fire spacing should not be less than 5m. 3, when the outer wall of the plant and the outer edge of the oil-immersed transformer 37.5kva transformer is less than the provisions of the specification sheet, the wall should use a firewall. The distance between the wall and the outer edge of the transformer should not be less than 0.8m. 4, the outer wall of the plant away from the oil-immersed transformer within 5m, the total thickness of the transformer plus 3m below the horizontal line and both sides of the outer edge of the 3m range should not be set up doors and windows and holes in its range outside the Fire doors and fixed windows, the fire resistance should not be less than 0.9h. 5, 2000 kva transformer and other oil-filled electrical equipment, a single oil in the 1000Kg or more, should be set up oil storage pit and public pool. 6, oil-immersed transformers should be in accordance with the relevant provisions of the existing norms, set up fixed water spray and other fire extinguishing system. Oil-immersed plant transformers shall be located in separate rooms, the doors of which shall be outward-facing Class II fire doors and shall be open to outside or corridors and shall not open to other rooms.