In some subsystems of a modern car, electric motors are used, and when repairing and maintaining a car, it is often impossible to do without an electric motor that drives various kinds of auxiliary equipment. For high-quality operation, the engine must be correctly connected and configured. The connection procedure is determined, first of all, by the type of electric motor and its design.
Necessary
- - tester;
- - voltmeter;
- - screwdriver;
- - set of wrenches;
- - nippers;
- - pliers;
- - insulating tape.
Instructions
Step 1
Find the ends of the motor windings. Depending on the type of unit, they can be connected to a block with three or six terminals. If the device has three terminals, use a delta or star connection. With a six-terminal block, the winding leads are not connected to each other.
Step 2
Connect the ends of the windings with a "star" if the motor operating instructions indicate that the windings are designed for an operating voltage of 220 V. which indicated that they can be used in networks with a voltage of 220/380 V.
Step 3
When connecting an electric motor according to the "star" type, find the ends of the windings of the same name and combine them into one so-called "zero" point. Usually, this type of connection of the windings is not difficult.
Step 4
Using a delta connection of the winding leads, combine the end of the first motor winding with the beginning of the second winding, the end of the second with the beginning of the third, and then connect the beginning of the first winding to the end of the third. Use standard wire markers to locate windings.
Step 5
If there is no pin marking, and the technical documentation for the motor is not available or is lost, use a tester to determine the ends of the winding, switching it to ohmmeter mode. Conventionally mark the terminals with numbers or insulating tape of different colors.
Step 6
To find the ends of the windings, connect any two windings in a sequential manner and supply a voltage of at least 6V to them. Connect a voltmeter to the remaining third winding.
Step 7
Determine with a voltmeter if there is an AC voltage in the circuit. Lack of voltage means that the first two windings are connected in the opposite way. In this case, the conclusions of the first winding are reversed, having previously marked the beginning and end of the windings.
Step 8
Repeat the described actions, but with the second and third windings of the electric motor. This will allow you to find the beginning and end of the third winding.
Step 9
After connecting the windings, connect the electric motor to the power supply circuit and check the device for operation. During the inspection, it may be found that the direction of rotation of the motor shaft is not correct. Correct the situation by swapping the wires connecting the power circuit and the stator winding.
