Transformer oil temperature setting regulations

Substation Mainstep-down transformer: The alarm temperature of the upper oil temperature of the main transformer is 85 degrees, and the tripping temperature is 95 degrees. The self-starting temperature of the cooling device is 70 degrees, and the self-stopping temperature of the cooling device is 48 degrees; the alarm temperature of the winding on the high and low voltage sides of the main transformer is 103 degrees, and the tripping temperature is 113 degrees.

High-plant change: upper oil temperature alarm temperature 98 degrees, tripping temperature 100 degrees; cooling device self-starting temperature 60 degrees, cooling device self-stopping temperature 48 degrees.Degree;High factory transformer high voltage side winding alarm temperature 98Degree.Trip temperature 108Degree.

Startup change: Upper oil temperature alarm temperature 87Degree.Tripping temperature 97Degree;Cooling unit self-starting temperature 62Degree.Cooling unit self-stopping temperatureDegree;Alarm temperature of the winding on the high-voltage side of the startup and standby transformer 100Degree.Tripping temperature 110Degree.