When under a deep vacuum the motor winding of a hermetic refrigeration compressor: ______.

Engineering

1 answer:

kirill [66]3 years ago

8 0

Answer:

a. will be damaged if energized

Explanation:

A hermetic compressor needs a coolant to prevent overheating of the motor. The cooling of the compressor depends on the flow of the refrigerant through the compressor hence when under a deep vacuum, the motor winding of a hermetic compressor can overheat.

A crankcase heater is used to prevent the mixing of refrigerant and oil at low temperatures. The mixing of refrigerant and oil can cause oil foaming in the vacuum. When under a deep vacuum, the motor winding of a hermetic compressor can overheat if the crankcase heater is energized.

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