Electric Portal is about electrical concepts and other electrical machines like motor transformer,dol starter,star delta starter,auto transformer starter and much more
Direct On-Line is the simplest and cheapest method used for starting a three-phase induction motor. DOL starter is used for up to 5 HP motors. this starter is more popular due to the low price. Different starting methods are used to start 3-phase induction motors like star delta starter, autotransformer starter, variable frequency drive, soft starter. DOL starter […]
What is Soft Starter? Soft Starters are starting devices, used for the acceleration, deceleration, and protection of the three phase electrical induction motors through the controlling applied voltage to 3 phase motor.Induction motor is the most frequently used motor for industrial as well as domestic applications. Most industrial motors are single phase or three-phase induction motors depending upon the […]
A star delta starter is a type of motor starter that is used to control the starting and stopping of three-phase induction motors. It is commonly used in industrial applications where motors of large power ratings are used. In this blog post, we will explore the working principle, control diagram, construction, advantages, theory, and applications […]
The armature will draw a very high current due to the small resistance of the armature winding to avoid this heavy starting current 4 Point starter is used. Here we are going to discuss the 4-point starter it’s working principle and construction Mainly two types of starters are used Working Principle of 4 Point Starter Four-point […]
Autotransformer starter working pdf The squirrel cage induction motor started on full line voltage using D O L starter as a starting method draws a very large starting current which can damage motor winding and also create a current surge on the power system. Hence another starting method is used to start three phase induction motor called an auto […]
