Which outcome occurs when a hermetic refrigeration compressor operates with excessive superheat in the refrigerant vapor?

💡 Explanation

When superheat is excessive, the refrigerant absorbs more heat, raising compressor temperature, which degrades the motor winding insulation because elevated temperatures accelerate chemical breakdown of the polymeric materials. Therefore, insulation degradation results, rather than freezing, overpressure, or icing, which stem from separate mechanisms involving moisture or pressure regulation.

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