If the motor is repaired, remove the old wire, write down the number of turns of each slot wire, measure the wire diameter, then clean the slot, pad it with insulating paper, lay the wire handle, go down to the slot and seal it with a bamboo stick. If the new wire is offline, check the wire diameter and turns according to the stator data.

If the motor without data is offline, calculate the magnetic flux Gauss according to the quality of the silicon steel sheet, then calculate the V/A/ turns according to the width and length of the stator pole and the depth of the slot, multiply it by the voltage to calculate the required turns, and then calculate the outlet diameter according to the area of the slot, which is completed offline according to the above method, and then pre-dry, dip paint and dry. Then the power of the motor is determined according to the allowable current of the wire diameter.

About stator winding

Stator winding refers to the winding installed on the stator, that is, the copper wire wound on the stator. Winding is the general name of a phase or the whole electromagnetic circuit composed of multiple coils or coil groups. According to the different winding shapes and embedded connection modes, motors can be divided into centralized and distributed. The winding and embedding of centralized winding are relatively simple, but the efficiency is low and the running performance is poor. At present, most AC motor stators adopt distributed windings. According to different models, models and winding process conditions, the motor design has different winding types and specifications. According to the relationship between the number of magnetic poles and the distribution of windings, stator windings can be divided into explicit and implicit types.

There are many shapes of motor coils, but its basic structure consists of three parts: the straight part embedded in the iron core slot is called the effective edge, and a coil has two effective edges, which is the effective part of electromagnetic energy conversion; After the coil is embedded, the part connecting the two effective edges is located outside the slots at both ends of the iron core, which is called the coil end, which is an essential part of the coil structure, but it cannot be used for energy conversion. The lead wire is the beginning and end of the coil after winding, and it is also the connection point to lead out the coil current.

References:

Baidu Encyclopedia: Stator Winding