what are windings on electric motor for a ac unit?
Without getting to technical the copper wire wound in the motor case.
The copper windings react to the magnets in the casing of the motor, which repel the windings, and in doing so cause the motor to turn.
Not sure I understand the question....The winding and the motor frame on a a/c compressor are sealed indide the hermatic compresssor.,..As a general rule the motor/rotor and pump is also inside the sealed compressor....Most are Capicator start//Capicator run motors..Both of the capicators are mounted outside the comp...The motor actually runs in the freon inside the sealed unit...There is slso a thermal overload inside the sealed unit to protect the motor... If the compressor/ motor overheats the overload will take the motor off the line until it cool off some....And then the comp. will restart without warning Have A Good Day
The windings are long, thin wires made from copper. When electricity travels along a conductor, a weak magnetic field is created. If the conductor is wound into a coil, the magnetic field is increased exponentially and can be quite strong. The vast majority of motors in use are operated on A/C voltage sources. A/C voltage reverses its polarity, hence the name Alternating Current. Current is the flow of electrons along a conductor. As the polarity changes back and forth, the electrons actually move back and forth along the conductor. The magnetic field also reverses polarity. There are two components to a motor, the rotor, which rotates, and the stator, which is stationary. Permanent magnets mounted on the the rotor can then use attraction and repulsion with the alternating magnetic field in the stator to make a shaft turn. The long, thin windings of copper have a thin insulating coating on them so the current can only flow along the length of the conductor. If the insulation fails, as it will over time, the current can find a shorter pathway to follow and the motor will burn out its windings. Most motors have two sets of windings in them. One is the start winding, the other is the run winding. Depending on the application of the motor, the start winding may or may not be eliminated from the operating circuit after the motor has started. There are a variety of designs. Some motors are designed to operate on single phase power, some on 3 phase power. Hope this helps.