EK Technologies

Types of single phase induction motors| starters The different types of single phase induction motors are identified or named by their starting methods. They include: 1)Split – phase Induction Motor 2) Capacitor – Start Motor 3) Permanent – Split Capacitor Motor 4) Capacitor - Start Capacitor - Run motor 1) Split-phase induction motor The split phase induction motor also called the inductance start motor. The stator has two windings namely the main winding and the auxiliary winding which are displaced in space by 90 degrees. When the motor is supplied, the rotor accelerates and when it reaches about 75% of the synchronous speed, the centrifugal switch disconnects the starting winding. The split phase induction motor is also known as the resistance start motor when a high resistance is added in series to the starting winding.  And the operation is the same as the one above. 2. Capacitor start motor The capacitor-start motor is similar to the split phase induc

Single phase induction motors A single phase induction motors is a type of single phase motor .  Constitution or parts A single phase induction motor is made up of two main parts. Namely: the stator and the rotor and may include other accessories like centrifugal switch etc, capacitors. Internal view of a type of single phase induction motor with view of a centrifugal switch and capacitor Stator : The stator carries single phase windings (main winding and start winding for starting). These windings are distributed ( uniform or equal distribution of the conductors in the slots). Stator of a single phase induction motor Rotor : The rotor of a single phase induction motor is  of squirrel cage type (Squirrel Cage rotor) Squirrel cage rotor of a single phase induction motor A centrifugal switch may also be incorporate into the motor ( connected in series with the starting winding) and is used to cut off the starting winding when the rotor accelerates

Single phase motors As the name suggests, these are motors used on single phase supply. They are the most common types of electric motors with a wide range of applications and are manufactured in small fraction kilowatt ratings. Their application ranges from domestic, commercial, to industrial applications. Examples of domestic applications are in fans, washing machines, mixers, hair driers etc. Classification of single phase induction motors Single phase motors are classified into the following types: Single phase induction motor AC series motor (universal motor) Repulsion motor Synchronous motor Parts A single phase induction motor has two main parts. Namely: the stator and the rotor this is shown in the figure below. A view of the Stator and Rotor of a Single Phase Motor (Single Phase induction motor) Operating principle of single phase induction motors Note: Single phase motors are not self starting. When a single phase AC