Electro-Motor
An electric motor is an electrical device that converts electrical energy into mechanical energy. Today it is used in residential and industrial environments. However, choosing and buying an electric motor depends on your specific needs. In fact, this product is available in different types such as AC motors (induction and asynchronous motors), DC motors. Maybe this question has occurred to you, what is the main task of the electric motor? Converting electricity into mechanical movement is one of the functions of this device. Also, in the electric motor, an electric current conductor is located in a magnetic field, and this causes force to enter the electric current carrier from the side of the magnetic field.
Types and application of electric motor
Electric motor has different applications in industry. For example, electric motors are used in the manufacture of air conditioners, household appliances, turbines, pumps, etc. In the following section, we will examine the types of electric motors and the application of electric motors.
The types of electric motors are:
Alternating current or AC motor: Alternating current or AC electric motors are installed and used in alternators in household appliances. An AC motor is a common type of electric motor that is driven by alternating current. Designing an AC motor is easier than a DC motor, but in order to control the acceleration and torque in different models of AC electric motors, a deeper understanding is needed in the design and specifications of this type of motor. Some of the advantages of this type of electric motor include, simple design, price Reasonable, reducing service and maintenance costs, fully connected to a power source, easy installation and commissioning, speed control, adjustable operating speed, adjustable torque limit. Alternating current or AC motors are of various types, such as synchronous motors, motor Linear and induction motors are divided.
Also, induction motors are available in single-phase and two-phase types.
Asynchronous motors: These types of motors change their speed in different situations. For example, when the motors are under pressure, their speed decreases. The servo motor is also divided into two other categories, stator and rotor motors. The induction motor is the most common type of AC motor in the market, which is used to convert electrical energy into Mechanical relies on electromagnetic induction. Al-Qabi motors are classified based on the type of rotor. Induction motors are the right choice for industries. The applications of induction motors can be mentioned in the construction of compressors, pumps, and lifting gears. AC synchronous motors have many applications in robotics, process control and automation. Most constant speed equipment uses these motors.
AC motors differ from DC motors in that most AC motors do not have brushes. This means that the need for maintenance and replacement of parts in the AC motor is greatly reduced and users expect that the lifespan of this device will also increase. AC motors are often used in a diverse list of consumer products and industrial equipment due to their durability, low production costs, reasonable price, and ease of operation.
AC motors differ from DC motors in that most AC motors do not have brushes. This means that the need for maintenance and replacement of parts in the AC motor is greatly reduced and users expect that the lifespan of this device will also increase. AC motors are often used in a diverse list of consumer products and industrial equipment due to their durability, low production costs, reasonable price, and ease of operation.
Direct current or DC motor:
This type of electric motor has an armature of a magnetic magnet that directly absorbs electrical energy. DC motors were the first type of motors to be widely used. Due to their higher power, their overall maintenance costs are high. The speed of DC motors can be controlled by changing the supply voltage. Its advantages are DC direct current, easy installation and operation, same speed and torque control. We use DC electric motors in our daily life in different ways. For example, DC electric motors are used in home air conditioning systems, projectors at work. The advantages of brushless as opposed to with brushes can be high efficiency, long life of the motor, Ease of repair, easy installation noted; Efficiency, noiseless operation and increased speed make this type of motor a good choice for most industries. Cranes, hoists and elevators use brushed DC motors. Also, this type of engine is used to make vacuum cleaners.
If you are planning to buy an electric motor, this article will help you a lot. As we said, these products are available in different types and are produced by different factories. When buying an electric motor, pay attention to points such as device power, torque, engine speed, engine life, device frame size, speed, voltage, and the amount of noise produced by the device. You can make a purchase by considering these mentioned items. Of course, the price of the electric motor is another important factor that you should consider when buying and buy an electric motor according to your budget. Some types in the market have a higher price, but keep in mind that the increase in the price of an electric motor does not indicate the quality of the product. Therefore, checking the product and buying an electric motor from a reputable brand is the best option.
Types of electric motor (single-phase electric motor – three-phase electric motor)
If you intend to buy an electric motor, you should know that electric motors have become an integral part of human life today and with their many applications, they have opened their place in all industries and daily affairs, so that the era of a world without an electric motor seems a little difficult. You may be interested to know:
What are the types of electric motors?
What are the engine components of electric motors?
What is a single phase electric motor?
What is a three-phase electric motor?
What is an electric motor?
Most electric motors work through the interaction between the motor’s magnetic field and the electric current in the winding. This interaction creates a force (according to Faraday’s law) in the form of a torque that is applied to the motor shaft.
Electric motors can be fed from direct current sources (DC) such as batteries or rectifiers, or by using alternating current sources (inverters, electric generators, or the power grid), which is how the types of electric motors make sense and, accordingly, their operation. also changes.
Motors are the reason we enjoy so much technology in the 21st century, and without motors, we would still be living in Thomas Edison’s era, where the only purpose of electricity was in light bulbs.
Electric motors are found in cars, trains, power tools, fans, air conditioners, home appliances, disk drives, and more. Some electric watches even use small motors. There are different types of motors that have been developed for different purposes, and the efficiency makes the price of the electric motor variable. The basic principle in the operation of an electric motor is Faraday’s law of induction; That is, when alternating current interacts with a changing magnetic field, a force is created.
Since the invention of engines, many advances have been made in the field of engineering, and this topic has become a very important topic for modern engineers.
Single phase electric motors
A single-phase electric motor is a rotating machine with electrical power that can convert electrical energy into mechanical energy. It works using a single-phase power supply. They include two types of wiring: hot and neutral. Their power can reach 3 kW and the voltage of the power supply is different at the same time. They have only one alternating voltage. The circuit works with two wires and the current flowing through them is always the same.
Some of the different types of single-phase electric motor are the shaded-pole motor, split-phase motor, permanent split-capacitor motor (also called single-valued capacitor motor), and double-valued capacitor motor. The main difference in the construction of these engines is in the production method of the second phase. Shaded pole and split phase motors do not use capacitors while permanent split capacitor (PSC) and dual value capacitor motors do. Split phase and two value capacitor motors may use a centrifugal switch to interrupt the starting phase as soon as the motors speed up, while shaded pole and PSC motors do not have a switch.
Each of these motors have different functions, and to buy an electric motor, it is necessary to study and gain knowledge in these cases in advance. Shaded pole motors are very simple motors and are usually inexpensive but have poor performance and are generally for low power applications. Split phase motors are usually low cost motors but have low starting torque and high starting current. PSC motors offer higher starting torque and efficiency than capacitorless motors.
Three-phase electric motors
A three-phase electric motor is a type of AC motor, which is a special example of a multi-phase motor. These motors can be an induction motor (also called an asynchronous motor) or a synchronous motor. Motors consist of three main components – stator, rotor and housing.
Three-phase electric motors (numerically written as 3-phase motors) are widely used in industry; While the single-phase induction motor is also available and is used in homes and offices.
Today, single and three-phase electric motors have grown in homes, offices and industry, and life without them is impossible. If you are looking to buy an electric motor, you need to use a consultant’s opinion to ensure the price of the electric motor as well as its efficiency.
Method of winding and starting the electric motor
In simple words, when we give electric current to an electric motor, a magnet is made in it and with the help of this magnet, the rotor of the motor rotates. This is possible with the help of motor winding, so the question that arises is, what is electromotor winding and how is it done?
What is a motor winding?
First of all, let’s explain what a motor winding is. A conducting wire lies in a circular pattern and carries an electric current. At the point where a current-carrying transmitter is set up along these lines, an attractive field is created through the escape band, and the more loops you make with the wire (more winding), the more attractive the energy field. Two great uses of electromotor winding. It is in transformers and motors. In the case of electric motors, the winding, or more specifically the armature, is the part of the motor that is responsible for creating the attractive field to turn the rotor that you need to produce power and make the rotor spin.
How does the motor turn the rotor?
To start the electric motor, winding is one of the most important steps, if it is not done correctly, the motor will not work. In a simple electric motor, you have the stator and the motor. In universal split stage motor, the stator winding and the motor winding have voltage. Stator windings are circles of wire that create an attractive field when presented. An electromotor winding is also made up of circles of wire, usually two sets, one thicker than the other, which creates a step in the supplied voltage. This motor winding produces a field which is in contact with the stator field and produces a force, and a commutator or a slip ring is used to maintain the pulsating voltage between the two motor windings in synchronization.
AC and DC electric motor winding
The coils used in starting the electric motor can be classified as follows:
1. Centralized motor winding
All the wires are twisted together and the motor winding is stuck together, framing a multi-turn loop.
All motor windings have a similar attractive field.
Examples of concentrated windings are – field windings for synchronous machines – DC machines – primary and optional windings of transformers.
2. Distributed coils
All motor windings are organized in several complete or partial steps.
These winding rings are placed in openings around the periphery of the air hole to be transferred to the frame stage or commutator winding.
Examples of circulating windings are – Stator and rotor of receiving machines – Armatures of synchronous and DC machines
3. Closed motor winding
There is a closed path, provided that it starts at any point in the winding and passes through it, it will return to the original phase from where it started.
Exclusively used for DC machines and AC commutator machines.
The windings of the electromotor are terminated with the appropriate number of slips or terminals.
It is used exclusively for machines, such as synchronous machines, acceptance machines, etc., and the price of an electric motor in this type of winding is usually higher than in others.
In an AC (synchronous) motor, the three-phase or delta-connected stator (armature winding) supplied by the 3-phase may be centralized or distributed (usually preferred). The rotor (field) is concentrated in salient pole type and distributed in cylindrical type supplied by DC source.
In an AC induction motor, in the power supply of the motor three phase induction (star or delta connected) distributes the windings on the stator and wound rotor. In squirrel cage rotor C, short copper connecting rods are used.
Dc motor winding also generally has motor winding and armature winding. Depending on the type of low voltage and high current or high voltage and low current, the armature winding may be in the form of bolts and nuts. A DC motor is a rotating machine that converts electrical energy into mechanical energy.
Two types of winding are used to start single-phase and three-phase electric motors:
Single phase motor winding:
Single-phase windings are induction motors. They always work with electromotor windings, capacitors, clutch plates, and capacitors are used in two ways. In the single-phase motor, two types of capacitors are used on the motor, one is the running capacitor and the other is the starting capacitor of the electric motor. The function of the starting capacitor is to start the motor only, and the running capacitor is active as long as the motor is running. Starting capacitors are used only in single phase motors and this capacitor is never used in three phase induction motor.
Three-phase motor winding:
Three-phase electric motor windings mostly work on the stator and rotor of the motor. Capacitors are never used in a three-phase motor. This motor has three input phases, all three input power wires have the same voltage of 220V and 440V, and this motor works on star and delta connections. Motors from 1 to 3 hp are mostly star wound and motors above 3 hp are delta connected. Engines higher than 5 hp move in delta first by connecting the starter and later with the help of the engine starter.
Each type of electric motor has a special wiring or winding pattern that affects the price of the electric motor and is designed depending on the efficiency of the electric motors. These days, the cost of repairing coils is very high and it is also considered a lucrative business. Now that you are familiar with the winding of electric motors and its types, you can make a better decision to buy or repair an electric motor.
If you are planning to buy an electric motor, this article will help you a lot. As we said, these products are available in different types and are produced by different factories. When buying an electric motor, pay attention to points such as device power, torque, engine speed, engine life, device frame size, speed, voltage, and the amount of noise produced by the device. You can make a purchase by considering these mentioned items. Of course, the price of the electric motor is another important factor that you should consider when buying and buy an electric motor according to your budget. Some types in the market have a higher price, but keep in mind that the increase in the price of an electric motor does not indicate the quality of the product. Therefore, checking the product and buying an electric motor from a reputable brand is the best option.
Types of electric motor (single-phase electric motor – three-phase electric motor)
If you intend to buy an electric motor, you should know that electric motors have become an integral part of human life today and with their many applications, they have opened their place in all industries and daily affairs, so that the era of a world without an electric motor seems a little difficult. You may be interested to know:
What are the types of electric motors?
What are the engine components of electric motors?
What is a single phase electric motor?
What is a three-phase electric motor?
What is an electric motor?
Most electric motors work through the interaction between the motor’s magnetic field and the electric current in the winding. This interaction creates a force (according to Faraday’s law) in the form of a torque that is applied to the motor shaft.
Electric motors can be fed from direct current sources (DC) such as batteries or rectifiers, or by using alternating current sources (inverters, electric generators, or the power grid), which is how the types of electric motors make sense and, accordingly, their operation. also changes.
Motors are the reason we enjoy so much technology in the 21st century, and without motors, we would still be living in Thomas Edison’s era, where the only purpose of electricity was in light bulbs.
Electric motors are found in cars, trains, power tools, fans, air conditioners, home appliances, disk drives, and more. Some electric watches even use small motors. There are different types of motors that have been developed for different purposes, and the efficiency makes the price of the electric motor variable. The basic principle in the operation of an electric motor is Faraday’s law of induction; That is, when alternating current interacts with a changing magnetic field, a force is created.
Since the invention of engines, many advances have been made in the field of engineering, and this topic has become a very important topic for modern engineers.