Protection
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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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Current Transformers (CT) – Types, Characteristic & Applications
Current Transformers (CT) – Construction, Types, Installation, Characteristic & Applications What is Current Transformer (CT) ? A C.T “Current Transformer” is a type of instrument transformer designed to step down…
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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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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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