The level of insulation material is also important! Next, let's explain the level of insulation materials for you.
Level of insulation material:
The level of insulation material refers to the heat resistance level of the insulation material used in the motor or transformer winding. The commonly used insulation materials for motor windings are generally divided into five levels based on their heat resistance: A, E, B, F, and H. Each insulation level of insulation material has a corresponding limit allowable working temperature, and the temperature of the hottest point of the motor operating winding insulation should not exceed its regulations. Otherwise, the insulation of the accelerating winding will age and shorten the motor life; If the temperature exceeds the allowable value by a large amount, the insulation will be damaged, leading to the burning of the motor.
Classification of insulation materials: The maximum allowable temperature for Class A insulation is 105 degrees Celsius; The maximum allowable temperature for Class E insulation is 120 degrees Celsius; The maximum allowable temperature for Class B insulation level is 130 degrees Celsius; The maximum allowable temperature for Class F insulation level is 155 degrees Celsius; The maximum allowable temperature for Class H insulation is 180 degrees.
