Electrical Engineering Articles

Auto Transformer Working & Calculations of Autotransformer

Auto Transformer Working & Calculations of Autotransformer

Autotransformer or variable auto transformer is a specially designed electrical transformer, where only a single winding is used to change the voltage level from primary to secondary side. Generally we know about split winding type transformers, where...
Limit Switch || Working, Connection and Types of Limit Switch

Limit Switch || Working, Connection and Types of Limit Switch

A limit switch is a mechanically operated device, which is used to sense the position of a physical object, and generate corresponding electrical NO/NC signal (normally open or normally closed) through its output side.  If you are dealing with electrical ...
Step up Transformer

Step up Transformer

Electrical transformers are basically classified in two major categories that is step up transformer and step down transformer. The prime objective of a voltage transformer is to change the voltage level, and transfer the electrical energy from one side...
Transducer: Concept of Power and Current Transducer

Transducer: Concept of Power and Current Transducer

In our modern world where the role of automation and precision process control plays a vital role in all segments of industry, Transducer becomes an essential electronic device to detect the smallest changes in system, and generate electrical signals...
Under voltage relay, its operation and application

Under voltage relay, its operation and application

New generation electrical networks are mainly based three phase system, where it is very important to protect the connected loads from over voltage and under voltage hazards. Protection devices like Under Voltage Relay are widely used in control desks,...
Universal Motor Working Principle and Diagram

Universal Motor Working Principle and Diagram

Universal motor is used in such applications, where you can use AC supply and DC Supply both to run the motor.  Generally, the electric motors are operated either in DC Power or AC Power, any one option you can choose. But for some specific applications ,...
What is Electricity or Electrical Energy

What is Electricity or Electrical Energy

In today’s world, electricity is the backbone of worldwide communication, transport system, industrialisation and all other modern developments, everything in our world is running with the power of electricity. Even inside our body, the brain cells c...

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