Put a bamboo stick on each slot, cross-embed the coils according to the records, connect the leads, and finally knock with logs to form. Then use a 500-volt megohmmeter to measure the insulation resistance within the specified range, pour the insulation paint, put a 200-watt light bulb in the middle of the motor, stand the motor up and bake it at a temperature of about100 C until the paint is dry. It is best to have a special person to guide the above operations, or refer to the motor maintenance manual.
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.
Extended data:
Jingle of motor winding
There is no formula for motor winding. The motor model, power, number of poles, number of stator slots, connection form (Y or delta) and voltage are quite different, and the winding diameter, number of turns and winding circumference are all different.
According to the voltage level, the high-voltage motor adopts various specifications of winding flat wires, such as bisimine, monoimine, thin double-stranded wire and so on. After the materials are prepared, they can be wound into shuttle rings on the winding machine. Generally, the shortest straight part of motor coil is 25cm, and the largest straight part is1.2m. The winding can be single flat winding, single vertical winding, double flat transposition winding or double flat transposition vertical winding, which is determined according to specific requirements. Circular enameled wire coils can also be wound by using a universal regulator in the disc.
The winding machine is equipped with a speed regulating motor and a worm gear reducer, which drives the winding machine to realize the forward and reverse braking of 0- 120 rpm and can count the forward and reverse rotation. Generally, all kinds of motor coils within 1600KW can be wound, and a simple tensioner can be equipped to control the tightness of the wound coils. General maintenance manufacturers can choose the above products, if they encounter particularly large specifications.