The three-phase electric motor is one of the most widely used electric motors in the market, which works with a three-phase power supply. To order a three-phase electric motor, you can call 09125731994.

Three-phase electric motors do not need a starting device, and for this reason, they are also called self-starting motors. Three-phase electric motors are produced in different types and models and are used in many work fields. Electric motors play a very important role in the development of industries and they are used in the design of various equipment such as cranes, elevators, pumps, etc.

Considering the widespread use of these devices in many fields of work, in this article we intend to introduce three-phase electric motors to the types of these electric motors, their features and advantages, the applications of these devices, important points in their purchase, factors affecting We will pay the price of these engines and how to buy them, which we hope will be of interest to you.

Introducing the three-phase electric motor

The three-phase electric motor, also known as the three-phase electric motor, is one of the types of motors used in different fields of work that work with three-phase electricity. In these motors, electrical energy is converted into mechanical energy and conditions are provided for the rotation of the moving part of the motor. In the design of these motors, a stationary part called the stator and a moving part called the rotor have been used, and the rotor part can have a special and different structure according to the type of motor design.

Three-phase electric motors are widely used and are available with different powers. Accordingly, depending on the work needs, you can buy models with low power or high power of these devices. The shell or body of the three-phase electric motor is usually made of cast iron or aluminum, which can be used according to the needs and working conditions.

Engines that use cast iron in their body design can be used in harsh environmental conditions due to their high strength and durability. On the other hand, the use of aluminum in the body design of these devices reduces their weight. The feeding frequency of the device is the factor that changes the speed of the three-phase electric motor, which can be changed to increase or decrease the speed of these devices.

Types of three-phase electric motors

Three-phase electric motors are available in different types and models, among which we can mention induction three-phase electric motors (synchronous and asynchronous), linear three-phase electric motors, universal three-phase electric motors, three-phase stepped electric motors, etc. On the other hand, induction electric motors are divided into two groups, squirrel cage electric motors and sliding ring electric motors, which we will introduce and examine further.

The Thomasnet website defines three-phase motors as follows: Three-phase motors (also referred to numerically as 3-phase motors) are widely used in industry and, because of their relative simplicity, proven reliability, and long life, They have become the work of many mechanical and electromechanical systems

Squirrel cage induction motor

As their name suggests, the rotor of these types of electric motors is similar to a squirrel cage, and that is why these electric motors are known as squirrel cages. In the design of the rotor of this device, a multi-layer core in the form of a cylinder is used, which has gaps on its outer edge. Also, in these motors, instead of the rotor coil, rotor rods are used, which are made of copper, aluminum and brass.

The squirrel cage three-phase electric motor has a smooth performance due to its special design, which also reduces the noise produced in them. Squirrel cage induction motors are widely used in many fields of work, as far as it can be said that 80% of induction motors are supplied with this design.

Slip ring induction motor

The slip ring induction motor, also known as the coiled rotor induction motor, is another type of three-phase electric motor that uses a coiled rotor in its design. Since the end terminals of the coils used in the rotor are connected to the slip rings, these motors are also referred to as three-phase slip ring electric motors.

Also, an external resistor is used in the rotor circuit of these devices, which can increase the amount of starting torque in them. Among the other features of the three-phase sliding ring electric motor, we can mention a very high capacity and the ability to adjust the speed in them. However, these motors are less used than squirrel cage induction motors due to high maintenance costs and high prices.

Features and benefits of three-phase electric motor

Three-phase electric motors are available with different powers, which can be used with high or low power models according to work needs. These electric motors, especially their squirrel cage models, are easy to use, high strength, low operating costs, and affordable prices. Due to its special design, the three-phase electric motor can be used in any working conditions.

Another feature of these devices is their high efficiency. Also, their maintenance is easier compared to other engines. These engines have high mechanical strength and do not need to be primed when starting. On the other hand, due to the use of drive in the design of these motors, it is possible to control the torque and speed in them.

Three-phase electric motor applications

Three-phase electric motors are used in many work fields due to their features and advantages. Among the applications of these electric motors, we can mention their use in commercial and industrial fields; Because there is no need for high torque in starting these engines. Also, the three-phase electric motor is used in the design of conveyors, submersible pumps, centrifugal pumps, cranes, air compressors, elevators, stone crushers, air blowers, etc. Double-bridge motors, which are one of the practical types of these electric motors, are used in the manufacture of fans and ventilators.

Important points in buying three-phase electric motors

Before buying three-phase electric motors, it is necessary to pay attention to a series of points and factors, among which we can mention the working voltage, power and torque of the motor, rated speed, motor frame size, body material and the brand of the motor manufacturer. We will review them further.

Working voltage of three-phase electric motor

Paying attention to the working voltage of the electric motor is one of the points that must be taken into account when buying these devices. The voltage of the electric motor will affect the performance of this device in heavy and semi-heavy work processes. Accordingly, if you intend to prepare a three-phase motor for heavy work processes, you must buy devices with high voltage.

Power and torque of three-phase electric motor

Other important factors in buying a three-phase electric motor are their power and rated torque. These factors have a direct effect on the power of the engine and its ability to perform various work processes, which must be selected based on the conditions and work requirements. Engines with low power and torque are suitable for light work and cannot be used in heavy work processes.

Rated speed of the three-phase electric motor

The rated speed of the three-phase electric motor, which is also known as the output speed of the electric motor, is the speed of the motor rotation, which must be selected according to the work requirement. Paying attention to the engine speed is very important for work areas that require a high speed range or speed change.

Three-phase electric motor frame size

Paying attention to the size of the frame or the size of the electromotor frame is one of the other points that must be taken into account when buying these devices. In some working conditions, electric motors with a specific frame size are needed so that they can be used in places with limited space. On the other hand, in some fields of work, due to safety restrictions, it is not possible to use any electric motor with any frame size.

Three-phase electric motor body material

The material of the body of the three-phase electric motor is one of the other factors that must be considered when buying these devices. This factor has a direct effect on the durability of the device and its performance in different working conditions. The use of aluminum in the design of the body of these devices helps to reduce the weight and ease of moving them. On the other hand, the cast iron used in the construction of the electric motor body increases its strength against corrosion and very high heat.

Brand manufacturer of three-phase electric motor

If you are looking to buy a quality and durable three-phase electric motor, you need to choose reliable brands that supply these devices. The most popular three-phase electric motor manufacturers include Siemens, Motogen, Electrogen, Stream, ABB, Gemco, and SPG.

The price of a three-phase electric motor

Various factors can affect the price of a three-phase electric motor, which must be taken into account before purchasing this equipment. First, it should be noted that the price of a three-phase electric motor depends on its technical specifications and capabilities, including motor power, rated speed, efficiency, etc. The higher the power of the engine, the higher its power and the more complex its design is, and this also causes its price to rise. This issue also applies to the nominal speed of the engine, and devices with high speed have a higher price.

The efficiency of the three-phase electric motor is another influencing factor on the price of these devices, which has a great impact on its quality and working process. Motors that are offered with high efficiency have a higher price due to the high efficiency of the motor and low energy consumption. Other factors affecting the price of electric motors include the type of raw materials used in the manufacture of motor parts and the quality of their manufacture. Engines that are made of durable materials and of high quality are usually offered at a high price.

The brand and manufacturer of the three-phase electric motor are other factors that can cause changes in its price. Engines that are offered by reputable and famous brands have a higher price compared to other brands, which can be the reason for the high quality and durability of the devices produced in these brands. Of course, sellers can also cause changes in the cost of these devices, so when buying, it is necessary to refer to reputable stores in this field.

Online purchase of three-phase electric motor

If you intend to buy a three-phase electric motor, you can purchase these devices in person and online. There is no need to go to the stores in the online shopping method of three-phase electric motor, which is very popular among buyers today, and this also saves time and money.

Also, in this way, the buyer can see the specifications and prices of the motors offered in these centers on all days of the week and at all hours of the day and compare their technical specifications to choose the best three-phase electric motor in terms of performance, capabilities and price. Of course, we recommend that you buy these devices from reputable stores. In the end, the store of Rahavran Sanat Qomes is a reliable store in the field of supplying three-phase electric motors, which provides its customers with various models of these devices with high quality and reasonable prices.