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Transformer Routine Test – Measurement Of No-Load Loss And Current

Transformer Routine Test - Measurement Of No-Load Loss And Current (on photo: Power transformer - BEST)Introduction to testThe no-load losses are very much related to the operational performance of a...

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Things You Should Know About Medium Voltage GIS

Things you should know about MV GIS (Medium Voltage Gas Insulated Switchgear) - photo by ormazabal.comContent Environmental ConcernsSafety ConcernsSpecial Handling ProceduresInstallation...

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And Now Something We All Use – The Socket Outlets

And Now Something We All Use – The Socket Outlets (photo By Mackdaddy2000 @ Flickr)Construction & AmperageA socket outlet is a female socket connected to the power wiring in the building and will...

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Super Capacitors – Different Then Others (part 1)

Different then others - Super Capacitors (photo by Mr Toms World via Flickr) Introduction to Super CapacitorsSuper Capacitor - 10F/2.5VCapacitors store electric charge. Because the charge is stored...

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An Overview Of Short Circuit Current (part 1)

An Overview Of Short Circuit Current (part 1)Basic conceptThere are essentially four types of faults: three-phase, single line-to-ground, double line-to-ground, and line-to-line.Each of these types of...

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An Overview Of Short Circuit Current (part 2)

An Overview Of Short Circuit Current - Part 2 (on photo Main Switchboard by jayreynoldsisreal @Flickr) Continued from previous technical article: An Overview Of Short Circuit Current (part 1)...

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Super Capacitors – Different Then Others (part 2)

Super Capacitors - Different Then Others (on photo Super Capacitor 2.7V, Capacitance 0.22~20F, E.S.R. 40~2000ohm) Continued from first part: Super Capacitors – Different Then Others (part 1) Content...

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Transformer Routine Test – Measurement of Voltage Ratio and Check of Phase...

Transformer Routine Test – Measurement of Voltage Ratio and Check of Phase Displacement (on photo: OSB laboratory of BEST Transformers)IntroductionThe no-load voltage ratio between two windings of a...

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Defining Size and Location of Capacitor in Electrical System (1)

Defining Size and Location of Capacitor in Electrical System (1)Content Type of Capacitor Bank as per Its Application:Fixed type capacitor banksAutomatic type capacitor banksTypes of APFC – Automatic...

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Why Bats Are Insanely Attracted To Wind Turbines?

Why Bats Are Insanely Attracted To Wind Turbines?Bat Kills at Wind TurbinesRecent studies have reported large numbers of bats being killed at wind farms in many parts of North America and Europe....

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An Overview Of Short Circuit Current (part 3)

An Overview Of Short Circuit Current (part 3) Continued from previous technical article: An Overview Of Short Circuit Current (part 2) Sample calculation for small LT systemFault calculations are...

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Working Principle Of Thermal Motor Protection Relay

Working Principle Of Thermal Motor Protection RelayPrinciple of operationThermal motor protection relays contain three bimetal strips together with a trip mechanism in a housing made of insulating...

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Defining Size and Location of Capacitor in Electrical System (2)

Defining Size and Location of Capacitor in Electrical System (2) Continued from part 1: Defining Size and Location of Capacitor in Electrical System (2) Content Size of circuit breaker (CB), fuse and...

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What Is The Purpose Of Wind Farm Lighting?

What Is The Purpose Of Wind Farm Lighting?Aircraft Warning LightsWind farm lighting includes:Aircraft warning lights that are installed on tops of some turbine nacelles andNight lights around wind...

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Sources and Contributors To Short Circuit Current

Sources and Contributors To Short Circuit Current (photo by M. Diskovic)Flow Of Electrical Energy Every electrical system confines electric current flow to selected paths by surrounding the conductors...

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Torque Of Three-Phase Induction Motor Explained

Torque Of Three-Phase Induction Motor Explained (photo by empoweringpumps.com)Introduction to torqueThe rotating force that a motor develops is called torque.Due to the physical laws of inertia, where...

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Starting Motor With Auto-transformer

Starting Motor With Auto-transformerCircuit and function An auto-transformer starter makes it possible to start squirrel-cage induction motors with reduced starting current, as the voltage across the...

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The Rheostat In Few Simple Words

Startup rheostat of VL10 3 kV DC electric locomotive A variable resistor can be made from a wirewound element, rather than a solid strip of material.This is called a rheostat.A rheostat can have...

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Lightning Protection System – Germany Regulations

Lightning Protection System – Germany RegulationsLegal Regulations The purpose of a lightning protection system is to protect buildings from direct lightning strikes and possible fire, or from the...

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Hospitality lighting design, Why it matters

Photo by Philips Lighting - The functional office lighting realized through 422 luminaires integrated in a false ceiling with 600 x 600 grids. Each luminaire is powered by 16 or 12 high power LEDs of...

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