What is an electric motor coil?
The coil is made up of many intertwined wires that are wrapped in a different arrangement on an iron core and create magnetic poles. Electric motors have two pole configurations. Embossed and non-embossed with different makeup and appearance.
The material and insulation of the motor winding types depends on the engine power,
for wires with a power of less than 150 kW, lacquered copper wire is used; br>But for wires with a power of more than 150 kW, a copper bus is used so that it can withstand high pressure.
High power uses the cooling fan and cold water channel installed on the engine.
Types of motor winding according to the place of use
Stator winding
There are slots on the stator where the coil can be inserted and
then with the help of AC power supply it can be The energy required for this type of motor winding is provided.
The stator winding is connected in two ways, star and delta.
Rotor winding< /b>
The rotating part of the motor, the rotor, also has a coil.
Single phase motor winding types
Fractional pitch winding (Resistance Start):
The beginning and end of the coil are less than 180 degrees apart and the driving force inside the coils is calculated by summation. ;
Therefore, the driving force and as a result the power of the motor decreases, which
to compensate, they shorten the step and increase the number of turns of the coils.
Single phase motor winding design Two-phase (Shaded-Pole):
Before performing this type of winding, the calculations related to the winding should be done,
the winding table should be prepared and then the map should be drawn.
This type has a permanent coil that is used in starting. are located.
Full pitch winding (Capacitor Start):
The beginning and end of this winding have a phase difference of 180 degrees; Therefore, the calculations are done algebraically.
Also, the polarity and winding steps are equal.
Single-phase induction motor winding with permanent capacitor starter Capacitor):
The starting of these motors is done by an electrolytic capacitor, which
remains in the circuit after starting to create a phase difference in the winding.
Permanent auxiliary winding in a fractional step circuit (Capacitor Start Capacitor Run):
In this winding q is even or odd (the number of slots under each phase pole ) is examined to determine the position of the coils.
These windings are a two-phase design (a main phase and a virtual phase) with a phase difference of 90 degrees.