Alternating Current
-
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…
Read More » -
Emergency Generator Set – Construction, Installation, Maintenance & Wiring
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…
Read More » -
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…
Read More » -
High Inrush Current in Capacitor Switching and Ways to Prevent It.
How to Prevent the high Inrush Current in Capacitor Switching? Introduction to High Inrush Current in Capacitor Switching Applications of capacitance switching are not only restricted to capacitive currents but…
Read More » -
Three Phase Current Values in a 3-Phase System
Division of Three Phase Current Values in a 3-Phase System The following points may be noted for understanding the division of Three Phase Current in a 3-Phase System 1. The…
Read More » Advantages of Power factor improvement and Correction
Advantages of Power factor improvement and Correction: Following are the merits and benefits of improvedPower factor; Increase in efficiency of system and devices Low Voltage Drop Reduction in size of…
Read More »-
Ohm’s Law with simple explanation
Ohm’s Law The relationship between Current through and Voltage across a conductor was first discovered by a German scientist George Simon Ohm. This relationship is called Ohm’s Law and be stated…
Read More » Alternating Current Library
Alternating Current (AC) Library Maintenance of Transformer – Power Transformers Maintenance, Diagnostic & Monitoring Emergency Generator Set – Construction, Installation, Maintenance & Wiring Short Circuit Currents And Symmetrical Components High…
Read More »-
How to Calculate/Find the Rating of Transformer in kVA (Single Phase and Three Phase)?
Calculate & Find the Rating of Single Phase & Three Phase Transformers in kVA We know that, Transformer always rated in kVA. Below are the two simple formulas to find…
Read More » -
What is Power Factor (Cosθ) ? Cos fi or P.f Definitions & Formulas
Power Factor (Cosθ) – Cos fi or P.f – In electrical engineering, power factor is only and only related to AC circuits i.e. there is no power factor (P.f) in…
Read More »
