How to Change the Direction of Rotation of a DC Motor?
DC motors are widely used in various applications, from robotics and industrial machinery to household appliances and automotive systems. One … Continue Reading
Types of Wiring Systems – Cleat, Casing, CTS, TRS and Conduit Wirings
A process of connecting various accessories for distribution of electrical energy from supplier’s meter board to home appliances such as … Continue Reading
Residual Current Protective Devices (RCCB, ELCB & RCBO)
What is an RCD? A Residual Current Device (RCCB, ELCB, RCBO, GFCI etc.) is a device that is designed to … Continue Reading
Insulators, Conductors and Semiconductors (with Band Diagram)
Solid state materials can be classified into three groups: Insulators have no free charge carriers available with them under normal … Continue Reading
Swinburne’s Test of DC Machine (Generator and Motor)
Swinburne’s test is the simplest indirect method of testing dc machines. In this method, the dc machine (generator or motor) … Continue Reading
Testing of DC Machines (DC Motor and DC Generator)
There are several tests that are conducted for testing a dc machine (generator or motor) to judge its performance. The most important … Continue Reading
Working Principle of Transformer
A transformer is a static piece of equipment used either for raising or lowering the voltage of an AC supply … Continue Reading
Electrical and Mechanical Noise in Motors
Two types of noises occur in an electric motor, one is electrical noise and the other is mechanical noise. The … Continue Reading
What do Electrical Engineers Do?
An electrical engineer is someone who designs and develops new electrical equipment, solves problems and tests equipment. They work with … Continue Reading
Back EMF and Its Significance in DC Motor
What is Back EMF? When the armature of a DC motor rotates under the influence of the driving torque, the armature … Continue Reading