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…
A synchronous motor is a machine that rotates at a constant speed called synchronous speed and converts electrical power to mechanical power. Synchronous motors Starter winding fed with a three phase AC supply and field winding is excited using a…
What is DOL Starter? DOL Starter 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…
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.…
The three-phase induction motor is one of the most widely used motors in various industrial applications. Its robust construction, simplicity, and versatile nature make it a preferred choice for powering machinery and equipment. In this article, we will delve into…
A Slip Ring Induction Motor is a type of asynchronous induction motor. Slip ring induction motors rotor is wound identically to the stator and is connected through rotating electrical contacts known as slip rings. These slip rings let the induction…
The working principle of the transformer is based on Faraday’s law of electromagnetic induction. The three-phase power transformer is the main device of every power system. the main function of transformer is to step up or step down the voltage…
There are in general two types of transformer Shell type and core type transformer These two types differ from each other in the manner in which winding wound on the magnetic core. Core type Transformer In core type, the magnetic…
Slip ring induction motors, also known as wound rotor induction motors, offer severaladvantages and disadvantages compared to squirrel cage induction motors. Thesemotors have unique characteristics that make them suitable for specific applications. Inthis article, we will explore the Advantages and…
In power system protection, circuit breaker tripping is crucial if any fault occurs in the system. If the trip circuit is unhealthy and the fault occurs, the circuit breaker will not trip, the fault will pass through the circuit breaker…