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How to Test a Diode using Digital & Analog Multimeter – 4 Ways.

Testing Diode using DMM (Diode Test Mode + Resistance Mode)

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 is advisable to test component before assembling and placing in a circuit. Sometimes, we get unexpected results and …

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All About Electrical Protection Systems, Devices And Units

Electrical Protection Systems And Units

Electrical Protection Units And Systems Introduction to Electrical Protection Systems HV, MV and LV[1] electric installations and equipments are subjected to internal and external faults that can cause serious damages in persons and other equipments. To avoid and to minimize the consequences of those faults protection devices associated to equipments that are able to break electric current are required. For …

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Maintenance of Transformer – Power Transformers Maintenance, Diagnostic & Monitoring

Maintenance of Power Transformer - Transformer Diagnostic and Monitoring

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 when oven-stressed (except under extreme conditions), transformers are frequently overloaded and allowed to operate well beyond its …

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Submarine Cables – Construction, Characteristics, Cables Laying & Joints

Submarine Cables – Construction, Characteristics, Cables Laying & Joints

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 main land. For this purpose submarine cables are installed, which are also used for power and/or communications between islands …

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Design of Grounding / Earthing System in a Substation Grid

Design of Grounding Earthing System in a Substation Grid - Substation earthing grid

Design of Earthing / Grounding System in a Substation Grid By: Manuel Bolotinha 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 (surges), induce voltages at no-live parts of the installation that create potential differences between metallic …

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How To Locate Faults In Cables? Cable Faults, Types & Causes

How To Locate Faults In Cables? Cable Faults, Types & Causes

Cable Faults, Types, Causes and How to locate faults in Cables via different Tests. Introduction to Faults in Cables When electrical energy is generated in the generations’ stations, it is distributed to the different loads, i.e. cities, towns and villages for consumption then. The process involves stepping up the voltage to minimize the loss of energy in the form of …

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How to Test & Fix the Printed Circuit Board (PCB) Defects?

Diagnosing of Defective Printed Circuit Boards PCB

Diagnosing of Defective Printed Circuit Boards (PCB) Before getting into details of printed circuit board (PCB), there are some basics you need to know about circuits. Electricity: It is the power provided to every instrument ranging from small lights to heavy machinery. Electricity is just a flow of electron from one level to other (upper level to lower mostly).So in …

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GFCI: Ground Fault Circuit Interrupter. Types & Working

How GFCI works? Ground Fault Circuit Interrupter

Ground Fault Circuit Interrupter (GFCI) At home or outside, there is no way can we do without electricity and electrical devices. These are the indispensible necessities of our modern day lives. But sometimes their accidental “touch” can give a painful shock resulting in serious injuries which at times, sadly enough can have fatal consequences. Do you know? Thousands of children …

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How to test a battery with Test meter?

How to test a battery with Test meter?

How to test a battery with Test meter? There are lots of tools and meters to test battery, car battery and cells to check and measure the battery efficiency and condition. Although, we can test battery with digital millimeter, but for an almost accurate checkup, we may use special tools like Digital Battery Tester, Multi-Battery Tester, 12 Volt Electronic Battery …

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Testing Electrical and Electronics Components and Devices with Multimeter

How To Test Electrical and Electronics Components with Multimeter

How To Test Electrical & Electronics Components with Multimeter? Troubleshooting with Multimeter We all know the rule and importance of “Troubleshooting” in Electrical and Electronics Engineering. Most EE components and elements used in Electrical and Electronics equipments, devices and instruments are common in their functions and operations. To be a good analyzer and troubleshooter, you must know the following basic …

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