Motor Insulation Paper

Some little knowledge about motor insulation paper

1. What are the aspects of motor insulation?

Answer: Motor insulation includes inter-strand, turn-to-turn, row-to-row, layer-to-ground insulation of the coil, various supports or fixings at the end, and various insulating components and connection wires and lead-out wire insulation.

2. What is the main insulation of the coil?

Answer: The main insulation of the coil refers to the insulation between the coil and the fuselage and other windings, which is also called the insulation to the ground.

3. What is inter-turn insulation?

Answer: Turn-to-turn insulation refers to the insulation between turns of the same coil.

4. What is inter-strand insulation?

Answer: inter-strand insulation refers to the insulation between strands in the same turn, generally the insulation of the winding wire itself.

5. What are the heat resistance grades of motor insulation paper?

Answer: Motor insulation paper can be roughly divided into: A grade, E grade, B grade, F grade, H grade and C grade. 6. What are the allowable temperatures of the six main heat-resistant grades of motor insulation paper?

Answer: The allowable temperature of the six heat-resistant grades is: Class A 105 degrees, Class E 120 degrees, Class B 130 degrees, Class F 155 degrees, Class H 180 degrees, Class C greater than 180 degrees.

7. What factors are related to the motor insulation life?

Answer: The life of motor insulation is related to the materials used, insulation structure, insulation process, testing methods, management level, and factors such as mechanics, electricity, heat, chemistry, environment, and moisture in operation.

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