{"id":2124,"date":"2020-09-24T10:00:02","date_gmt":"2020-09-24T18:00:02","guid":{"rendered":"https:\/\/www.linquip.com\/blog\/?p=2124"},"modified":"2021-12-21T05:06:20","modified_gmt":"2021-12-21T13:06:20","slug":"types-of-induction-motor","status":"publish","type":"post","link":"https:\/\/www.linquip.com\/blog\/types-of-induction-motor\/","title":{"rendered":"Types of Induction Motor: A Concise and Useful Guild"},"content":{"rendered":"

An induction motor, known as an asynchronous motor, is the most commonly in-use AC electric motor. This is how an induction motor works: the alternating current in the rotor that is needed to produce torque is gained via electromagnetic induction. This electromagnetic induction results from the rotating magnetic field of the stator winding. But in this article, we are going to focus on the types of induction motors. Linquip has gathered the whole essential and helpful pieces of information for you to read and get more acquainted with induction motors and their working principles. In the following sections, we are going to get familiar with different induction motors to some acceptable extent. Stay with us.<\/p>\n

Types of Induction Motors<\/h2>\n

There are mainly two types of induction motor. This classification is based on what power supply induction motors are fed with. Single-phase induction motors and three-phase induction motors are the two main types of induction motors. As their names imply, a single-phase induction motor is connected to a 1 phase AC power supply and a three-phase induction motor is provided with 3 phase AC power supply. Each of these two main types has some subcategories. the single-phase induction motor itself is categorized into 4 types and the three-phase induction motor has 2 types.<\/p>\n

\"Types<\/p>\n

Types of Single-Phase Induction Motors<\/h3>\n

based on the construction and starting method, the single-phase induction motor is categorized into the four types of Split Phase, Capacitor Start, Capacitor Start Capacitor Run, and Shaded Pole. In the following sections, we will elaborate on each of these types of single-phase induction motors.<\/p>\n

    \n
  1. \n

    Split Phase Induction Motors<\/h4>\n<\/li>\n<\/ol>\n

    In addition to the main winding of the stator of a single-phase induction motor, there is another winding called auxiliary winding or starting winding. The auxiliary winding and a centrifugal switch are connected in series. The job of this switch is to cut off the auxiliary winding from the main circuit when the motor speed reaches the speed up to 75 \u2013 80 percent of the synchronous speed. As you may know, the running winding is inductive but we need to create the phase difference between the two windings. This is possible if the starting winding bears high resistance. The starting and main current in split-phase induction motors get split from each other by some angle. So, this motor got its name as a split-phase induction motor.<\/p>\n

    This kind of motor has a low starting current and moderate starting torque. So, you can find these motors in fans, blowers, centrifugal pumps, washing machines, grinders, lathes, air conditioning fans, and more.<\/p>\n

    2&3. Capacitor Start and Capacitor Start Capacitor Run Induction Motors<\/h4>\n

    The working principle and construction of these two types of induction motors are almost the same. You should keep it in mind that single-phase induction motors are not self-starting because the magnetic field produced is not of rotating type. Induction motors need phase difference to produce a rotating magnetic field. In the case of split-phase induction motors, there should be resistance for creating phase difference but in capacitor start and capacitor start capacitor run induction motors, the capacitor makes phase difference. There is a fact that the current moving through the capacitor leads the voltage. There are two winding in capacitor start and capacitor start capacitor run induction motors: the main winding and the starting winding. With starting winding, there will be a connection in the capacitor so the current flowing in the capacitor leads the applied voltage by some angle.<\/p>\n

    These two kinds of induction motors have high starting torque therefore they are used in conveyors, grinders, air conditioners, compressors, and more.<\/p>\n

      \n
    1. \n

      Shaded Pole Induction Motors<\/h4>\n<\/li>\n<\/ol>\n

      Looking at the stator of the shaded pole single phase induction motor you will see the salient or projected poles. These salient poles are shaded by the inductive copper ring. These poles are divided into two unequal halves. The smaller portion conducts the copper ring and is called the shaded portion of the pole.<\/p>\n

      As shaded pole motors possess low starting torques and because of their reasonable cost, these motors are mostly employed in small instruments such as hair dryers, toys, record players, small fans, electric clocks, and more.<\/p>\n

      In the following sections, you will get familiar with different types of induction motors of three-phase.<\/p>\n

      \"Types<\/p>\n

      Read More on Linquip<\/strong><\/em><\/p>\n