Electrical Design
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Design and Installation of EHV/EHV and EHV/HV Substations
Types and Configurations of EHV/EHV and EHV/HV Substations The Role of EHV/EHV and EHV/HV Substations in Transmission Network EHV/EHV and EHV/HV[1] substations are an important element of the electricity transmission…
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All About Electrical Protection Systems, Devices And Units
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…
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Maintenance of Transformer – Power Transformers Maintenance, Diagnostic & 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…
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Insulating And Dielectric Materials – Types, Properties & Applications
An Introduction to Insulating And Dielectric Materials Definition of Insulating and Dielectric Materials An electrical insulating material can be defined as the material that does not allow electric current to…
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Transformers Fire Protection System – Causes, Types & Requirements
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…
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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,…
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Corona Effect and Discharge in Power Transmission Lines
A Comprehensive Guide about Corona Effect / Corona Discharge in Transmission Lines What is Corona Effect or Corona Discharge? When a low alternating potential difference is applied across two conductors…
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Design of Grounding / Earthing System in a Substation Grid
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…
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Introduction to Harmonics – Effect of Harmonics on Power System
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…
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Short Circuit Currents And Symmetrical Components
Short Circuit Currents And Symmetrical Components (Manuel Bolotinha) Short Circuit Faults and Currents Short-circuits can occur phase-to-phase and phase-to-earth, mainly due to: Dielectric breakdown of insulating materials (ageing, severe overheating…
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