What Is Continuity Test & How To Test for Continuity? Continuity Test For Different Electrical & Electronic Components & Devices In Electronics & Electrical systems, electrical wiring installations, maintenance, troubleshooting and repairing works. a continuity test is check

1 to 15 Minute Timer Circuit Diagram, Working and Applications In the era of technologies, everyone is taking the help of machines to simplify their life. Timer circuits ease your day to day tasks in many ways by initiating or doing it in a definite time interval. In other words, if you a

3, 4, 5 and 6 Band Resistor Color Code Calculators Resistor color codes are used to indicate the value of resistance defined by the Radio Manufacturer association in 1920 according to the International Standards IEC 60062. Below are given calculators for different types of resistors such as

Automated Fingerprint Identification System – Modules & Applications Introduction to Fingerprint Identification System Fingerprint Identification system or Dactyloscopy is a unique process of identification by comparing the fingerprint impressions of individuals. It used the fac

Voice Controlled Home Automation System using 8051 Microcontroller Voice Recognition Based Home Automation With the evolution of smart devices and various wireless communication technologies, it is now possible to leverage these techniques for the best possible benefits for human beings.

What are Harmonics and How to Filter and Eliminate it. (Manuel Bolotinha) Introduction to Harmonics The quality of electrical power supply is an important issue both for utility companies and users, but that quality may affected by electromagnetic disturbances. Among these disturbances

Design of Earthing / Grounding System in a Substation Grid Introduction to Substation Earthing Grid In high and medium voltage[1]Air Insulated Substations (AIS) the electromagnetic field, which causes are the static charges of bare cable and conductors and by the atmospheric conditions (s

An Introduction to Submarine Cables & Subsea Power Cables Introduction to Submarine Cables The development of offshore wind farms and oil and gas offshore platforms requires the installation of power, control and monitoring and communications cables between the platforms and the mai

Basic Requirements for Transformers Fire Protection System Causes of Fire in Transformers Excessive overheating, extremely severe short circuits, faults in the oil and lightning strokes may cause a fire on transformers. Transformer fires are rare but the impact is great. Even though a tran

An Overview of Emergency Generator Set (Manuel Bolotinha) Introduction to Emergency Generator Set Hospitals, airports, shopping malls and office buildings, just to mention some examples, are very sensitive, in what concerns safety of people and goods, to power outages caused by faults i

Maintenance of Power Transformer – Transformer Diagnostic and Monitoring Introduction Being transformers static machines without any moving and turning parts, they are very reliable machines, and if maintained properly, can last for 40 years or more. Also they do not trip or blow

Electrical Protection Units And Systems This is a long and descriptive article on different types of protection for electrical systems and networks. In this article, you will be able to cover  the different electric protection methods, system and devices, grading and protectio

Test a Diode by Analog & Digital Multimeter Troubleshooting Electronic Devices & Components Troubleshooting in electronic and electrical engineering is an important part and one must know the basic skills and knowledge about the components to design and troubleshoot a circuit. It i

Calculate the size of Earth Continuity Conductor, Earthing Lead & Earth Electrodes? For earhing or grounding purposes, the size of earth continuity conductor,, earthing lead and earth electrodes depend on wiring cables used in the system. Solved example given below will make the point e

What is MCB (Miniature Circuit Breaker) – Construction, Operation, Types and Applications Introduction to Miniature Circuit Breakers (MCBs) All fuses need to be replaced with MCB “Miniature Circuit Breaker” for better safety and control when they have done their job in th

What is Voltage Stabilizer and Why we need it? Stabilizer Operation, Types and Applications Introduction to Stabilizer: The embedding of microprocessor chip technology and power electronic devices in the design of intelligent AC voltage stabilizers (or automatic voltage regulators (AVR))

Types of Stepper Motors – Their Construction, Working Operation and Applications The invention of dedicated stepper motor driver cards and other digital control technologies for interfacing a stepper motor to PC-based systems are the reason for the widespread acceptance of stepper m

Energy Efficient Lighting & How to Implement It It has been estimated that lighting accounts for about 20% of the total power generation of the world. The quality and quantity of light not only affects our health, comfort, safety and productivity but also affects the economy. Many nat

How to do Lighting Design Calculation in a Building – Electrical Wiring Installation In professional field proper lighting design is very important because an under lighting arrangement will decrease the efficiency of the task for which the lightings were designed and an over lightin

Tips & Techniques for Energy Conservation in Buildings The high energy costs adversely affect all sectors of the economy and a determined effort to reduce the energy consumption and costs is, therefore, we need energy conservation and an energy efficient system in our homes as well as