Why should an electric motor be serviced by an expert?
Electric motors consist of many different components, and that”s why good knowledge is required for a successful electric motor service. Even when looking for a problem, lay people can quickly reach an intractable situation and make serious mistakes. Because of the coordinated components, it is also important to work precisely and competently and not to make mistakes that could later lead to a total loss. Professionals know all the pitfalls of electric motors, often have many years of experience and know exactly what to look out for. Seeking professional help is also recommended for the longevity of the electric motor. An electrician knows how to repair an electric motor so that it can still be used efficiently.
What are electric motors?
Electric motors are devices that convert electrical energy into mechanical energy. Electric motors generally work on the principle of electromagnetic induction, although there are also electric motors that use other electromechanical phenomena, such as electrostatic force and the piezoelectric effect. When we say electric motor, we mainly mean rotary electric motor, ie. motor that creates rotary motion. There are also linear motors. The main advantage of DC motors over AC motors is the easier control of speed, torque and direction of rotation. DC motors are generally made for lower power, because for higher power they would have to have larger and stronger direct current sources. DC motors can be divided according to how the field (stator) and armature (rotor) windings are connected. We have series and parallel motors. Brushed motors consist of a stator (permanent magnets), a rotor, brushes and a commutator. A commutator is a mechanical switch that periodically reverses the direction of the current in the motor. It consists of a pair of insulated semi-cylindrical copper contacts attached around the rotor. The brushes serve to close the circuit between the sources via the commutator. They are made of a softer material than the commutator and are easy to change because they wear out due to exploitation.
What is engine whine?
Electric motor service It is about rewinding all kinds of electric motors. In this sense, there are specialized services that deal with it. In addition, they also service ancillary equipment. Masters who service electric motors can boast of many years, and often decades, of experience in this business, that is, in electromechanics and power engineering. It is possible to use the service of winding three-phase and single-phase electric motors, of different power, for example, from 0-90 KW; also, one-way electric motors and circulation pumps for hot and cold water are serviced; elevator motors; electromagnetic brakes; we perform rewinding of all types of transformers, chargers, converters, and they are made to order.
Electric motor characteristics
Motors are manufactured as standard for nominal mains voltage 3 x 380V, 50 Hz. On special request, motors can be manufactured for other voltages up to 660V, as well as for all other frequencies in the range from 42 Hz to 60 Hz. Motors can be connected to a network of nominal frequency in which the voltage deviates by ± 5% from the nominal value without reducing the power. Three-phase electric motors can be connected to frequency regulators, which means that the speed of the electric motor can be decreased and increased using the frequency. Nominal motor power is for continuous operation, ambient temperature up to 40ºC, altitude up to 1000m, nominal supply voltage and nominal frequency. For special operating conditions, ambient temperature higher than 40ºC, altitude higher than 1000m, frequent starting or starting of larger swing masses, please make a special inquiry.
Service of the electric motor of the washing machine
Washing machine electric motor service requires an experienced electrician, because electric motor repair is much more demanding than other repairs related to washing machines. The collector electric motor is present in a large number of devices. It is also known as an electric motor with brushes. The collector electric motor consists of a rotor and a stator. The rotor is the part of the engine that rotates, as the name suggests. The part of the motor that does not rotate is the stator. The rotor is positioned inside the stator. In the course of our business, we have seen that the rotor definitely breaks down more than the stator itself. As part of the repair of the collector electric motor of the washing machine, we perform: Winding (service) of rotors on collector motors, replacement or repair of condensers, rotor brushes as well as bearings, Winding of motor stators and, if necessary, we also perform rewinding of one or both sides, and we also install thermal protection
In the professional service, complete rewinding of electric motors of smaller and larger power, machining of pump shafts, replacement of bearings, sandblasting, repainting of the housing, repair of the stator and rotor, as well as balancing on an electronic balancer are performed. Among the services that the services provide to their clients, we can also add the overhaul of brake motors, coiling and watering of magnets, coiling of magnets in car air conditioners, service of motors that drive elevators, replacement of sliding parts. In any case, it is up to the electrician to assess what service we need, because he is the only one who can give an adequate answer to this question.
