Correct option is D
Mulshifier System:
· A mulshifier system sprays a fine mist or water droplets over the transformer surface to cool it and suppress fire.
· It is effective for cooling and suppressing oil fires around the transformer.
Nitrogen Injection System (NIFPS):
· This system is designed to extinguish fires in oil-filled transformers by displacing oxygen using nitrogen gas.
· When a fire is detected, nitrogen is injected into the transformer tank, reducing the oxygen level and preventing combustion.
· The system also reduces pressure inside the transformer, minimizing the risk of explosion.
