It is not advisable to start induction motors of higher ratings (generally above 25kW) directly from the mains supply. Various starting methods of induction motors are described below.| www.electricaleasy.com
Squirrel cage motors are standardized into different types according to their electrical characteristics. These standard types are called as class A, B, C, D, E and F respectively. Class A motors are referred as 'normal starting torque, normal starting-current, normal slip' and are used as reference motors. Standard types of squirrel cage motors are as explained below:| www.electricaleasy.com
In an induction motor, when AC supply is given to the the stator, magnetic flux is produced which is revolving at synchronous speed. This post will explain you in brief about production of rotating magnetic flux for 2 phase as well as 3 phase supply.| www.electricaleasy.com
Crawling and cogging both are particularly related to squirrel cage induction motors. Sometimes, squirrel cage induction motors exhibits a tendency to run at very slow speeds (as low as one-seventh of their synchronous speed). This phenomenon is called as crawling of an induction motor.| www.electricaleasy.com
Faraday's laws of electromagnetic induction are fundamental principles in electrical engineering that describe the relationship between an electric circuit and a magnetic field. These laws are the bedrock for the operation of most modern electrical devices, including induction motors, generators, and transformers.| electricaleasy.com
