Power System
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Protection
Difference between Lightning Arrester and Surge Arrester
Difference between Surge Arrester, Surge Suppressor, Lightning Arrester and Lightning Rod Different terms used for arresters are sometimes confusing even professional engineers and electricians use them interchangeably. We will discuss…
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Questions - Answers
Why Volume of the Conductor is Inversely Proportional to the Square of Voltage?
Prove that the Volume of a conductor is inversely proportional to the squire of Voltage (Vol = 1/V2). And what is the effect of this relation on Transmission and Distribution…
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Power Factor
Difference Between Active and Reactive Power – kW vs KVA
Main Difference Between Active and Reactive Power – W vs VA The main difference between active and reactive power is that Active Power is actual or real power which is…
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Power System
Analysis of Reactive Power in Power System
Analysis of Reactive Power in Power System Reactive power is an imaginary power, but still, it is needed in the Power System. If reactive power is in excess in Power…
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Questions - Answers
Why Don’t Birds and Squirrels Get Electrocuted on Power Lines?
Why Don’t Birds Setting on Power Lines Get Electrocuted? We mentioned many times that electricity is our best friend as well as a worst enemy. If you give it a…
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Questions - Answers
Why is Electric Power Transmission Multiple of 11 i.e 11kV, 22kV, 66kV etc?
Why are all the Transmission Line Voltages Multiple of 11kv? Not 10kV? Obliviously, this is an interview type question for electrical engineers especially related to power engineering. Now, we are…
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Questions - Answers
What Are the Colored Aerial Marker Balls on Power Lines For?
What Are Marker Balls and Why Are They Used on Power Lines? Almost all of us have seen colored balls (usually orange, yellow, red, or white) on transmission and distribution…
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Power System
Power System Restoration – Outage, Voltage Collapse & Switching Programs
Power System Restoration – Power Outage & Restoring the Power Introduction Modern power grids are extremely complex and widespread. Surges in power overhead lines and other faults can cause massive…
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Overhead Lines
Overhead Lines Protection – Faults and Protection Devices
Overhead Lines Faults & Protection in Power System Common Faults in Overhead Lines The most common causes of faults in overhead lines are: Aircraft and cars hitting lines and structures…
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Power System
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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