fbpx
Breaking News
Home » Troubleshooting

Troubleshooting

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 …

Read More »

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 …

Read More »

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 …

Read More »

Transformers Fire Protection System – Causes, Types & Requirements

Transformers Fire Protection System – Causes, Types & Requirements

Basic Requirements for Transformers Fire Protection System By: Manuel Bolotinha 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 transformer involved in a fire likely will be destroyed almost immediately, as seen in …

Read More »

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 …

Read More »

Corona Effect in Transmission Lines & Power System

A Full Guide about Corona Effect - Corona Discharge in Transmission Lines

A Full Guide about Corona Effect – Corona Discharge in Transmission Lines What is Corona or Corona Discharge? When an alternating potential difference is applied across two conductors whose spacing is large as compared to their diameters, there is no apparent change in the condition of atmospheric air surrounding the wires if the applied voltage is low. However, when the …

Read More »

Introduction to Harmonics – Effect of Harmonics on Power System

Introduction to Harmonics

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 it must be highlighted harmonics that happens in all voltage levels and whose study, calculation of acceptable values …

Read More »

Cable Size Calculation for LT & HT Motors

Cable Size Calculation for LT & HT Motors

How to calculate the Cable size for LT & HT Motors? Selecting the right cable size for the motor is an important parameter for the Industry whether it’s during Installation and Commissioning or during running condition. It is a very important aspect for Safety, Cost minimization and reduction of undesired losses. An undersized cable can burn during motor operation causing …

Read More »

MCB (Miniature Circuit Breaker) – Construction, Working, Types & Uses

What is MCB (Miniature Circuit Breaker), its Construction, Working, Types & Applications

What is MCB (Miniature Circuit Breaker), its Construction, Working, Types & How to select proper MCB for different loads rating? Introduction to Miniature Circuit Breakers (MCBs) All fuses need to be replaced with MCB for better safety and control when they have done their job in the past. Unlike a fuse, an MCB operates as automatic switch that opens in …

Read More »

Difference Between MCB & MCCB According To IEC Standards

MCB or MCCB - Difference in IEC Standards - IEC 60898-1 & IEC 60947-2

MCB or MCCB – Difference in IEC Standards (IEC 60898-1 & IEC 60947-2) Circuit breakers are installed and used for safety purposes in both residential as well as commercial and industrial areas. In power distribution, we need circuit breakers at different levels. Depending on the current carrying capacity, breaking capacity and other functions, we select a suitable circuit breaker according …

Read More »