Md Nazmul Islam

This animation shows how a relay works as an electrically operated switch. Relays allow a low-voltage control signal to switch high-voltage or high-current loads safely. They are commonly used in automation, protection circuits, motor control, and home appliances. Key Components: Control Coil: A small electromagnetic coil activated by a low voltage (e.g., 5V). Armature...

This animation shows the internal mechanism of a circuit breaker and how it automatically cuts off electrical power during a fault. A circuit breaker detects overcurrent or short-circuit conditions and quickly separates its contacts to protect wiring, appliances, and the entire electrical system. Key Components: Incoming & Outgoing Terminals: Where electrical power...

This animation explains how a transformer changes the voltage level of alternating current (AC). Transformers work on the principle of electromagnetic induction, transferring electrical energy from one coil to another without any direct electrical connection. They are essential in power systems for stepping voltage up for transmission and down for safe...

This animation shows how electricity is delivered from the local substation to homes, shops, and small industries. The distribution system is the final stage of the power network, where high-voltage electricity is stepped down to safe levels and sent directly to consumers. Key Components: High-Voltage Lines: Carry power from the main transmission...

Here is your app-ready article for Transmission Lines, written in the same clean, structured format as your other topics. Perfect for your “Power System” category. Transmission Lines This diagram shows how high-voltage transmission lines carry electrical power from the power station to cities, factories, and residential areas. After electricity is generated, it...

This animation shows how a thermal power plant generates electricity by converting heat energy into electrical energy. Fuel is burned to produce heat, which turns water into steam. The steam drives a turbine connected to a generator, creating electrical power that is sent to homes and industries. Key Components: Fuel Handling System:...

This diagram explains the Voltage Divider, a basic DC circuit used to split a single supply voltage into smaller, desired output voltages. A voltage divider uses two resistors in series to divide the input voltage proportionally. It is widely used in sensors, reference circuits, biasing, and signal level adjustments. Key Components: Voltage Source...

Ohm’s Law This animation demonstrates Ohm’s Law, the fundamental relationship between voltage (V), current (I), and resistance (R) in a DC circuit. It shows how changing the supply voltage or resistance directly affects the current flowing through a resistor. Ohm’s Law is the foundation of all electrical calculations in both basic and...

This diagram explains the impedance behavior of AC circuits, showing how voltage and current signals can differ in magnitude and phase. Impedance represents the total opposition a circuit offers to alternating current, especially when capacitors or inductors are present. It is widely used in AC analysis, filters, signal processing, and power...

A capacitor is an electrical component that stores and releases energy in the form of an electric field. When connected with an inductor, it creates oscillations of energy between electric and magnetic fields, forming the basis of tuned circuits and signal processing applications. Key Components: Capacitor (C): Stores electrical energy in...

This diagram shows a Three Phase Automatic Transfer Switch (ATS) system — a smart electrical setup that automatically switches the power supply between normal power (utility) and alternative power (generator) in case of power failure. It ensures uninterrupted power supply to essential loads, making it ideal for industries, hospitals, offices,...

An inductor is a passive electrical component that stores energy in the form of a magnetic field when electric current flows through it. It typically consists of a coil of wire wound around a core, which can be air, iron, or ferrite. Working Principle When current passes through the coil, a...