Three Phase AC Circuits
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Corona Effect & Discharge in Transmission Lines & Power System
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…
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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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What is the Difference Between Neutral, Ground and Earth?
The Main difference between Neutral, Ground and Earth? To understand the difference between Neutral, Ground and Earth, we must understand the need of these things first. Neutral Neutral is return…
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Star and Delta Connected Lighting Loads
Star and Delta Connected Lighting Loads – Electrical Wiring Installation Star (Y) Connected Lighting Load – Electrical Wiring A Star connected (Three Phase Four wires or 3-Phase, 4 wires) lighting system…
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Difference between Star and Delta Connections – Comparison Of Y/Δ
Comparison between Star and Delta Connections We mostly use the terms star and delta in electrical systems while discussing three phase AC circuits and electric motors. Below is a given…
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Delta Connection (Δ): 3 Phase Power, Voltage & Current Values
Three Phase Delta Connection: Line, Phase Current, Voltages & Power in Δ Configuration What is Delta Connection (Δ)? Delta or Mesh Connection (Δ) System is also known as Three Phase…
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Star Connection (Y): Three Phase Power, Voltage & Current Values
Three Phase Star Connection: Line, Phase Current, Voltages & Power in Y Configuration What is Star Connection (Y)? Star Connection (Y) System is also known as Three Phase Four Wire…
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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…
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Rated characteristics of Electrical Contactors
Rated characteristics of Electrical Contactors Click image to enlarge 1. Types: (i) Electromagnetic (ii) Electro-pneumatic (iii) Pneumatic Important Terms and Definitions related to Motor Control and Protection 2. Interrupting Medium:…
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