Oil-immersed Transformers have two unique thermostats because the protection. A single thermostat rings the alarm though the other journeys the circuit breaker. Extinguishing Techniques: They are typically extinguished with water or monoammonium phosphate-dependent fire extinguishers. Protection of two winding transformers and 3 winding transformers can be reached by RET650. In https://firetechno.org