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Archive: Category «Metering»

Energy and Power

Learn To Interpret Single Line Diagram (SLD)

We usually depict the electrical distribution system by a graphic representation called a single line diagram (SLD). A single line can show all or part of a system. It is… Read more

Dec 19, 2015 | By Edvard

Learn To Interpret Single Line Diagram (SLD)
Energy and Power

Learn How To Specify Current Transformers

Current transformers are used to supply information to the protective relays and/or current, power and energy metering “instruments”. For this purpose they must supply a secondary current proportional to the… Read more

Dec 05, 2015 | By Edvard

Learn How To Specify Current Transformers
Energy and Power

Electrical Thumb Rules You MUST Follow (8)

Accuracy Class of Metering CT Accuracy Class Letter of CT Accuracy Class of Protection CT Continued from part 7: Electrical Thumb Rules You MUST Follow (Part 7) Metering Class CT… Read more

Mar 10, 2014 | By jiguparmar

Energy and Power

Power measurement in a three-phase system

Electrical power is measured with a wattmeter. A wattmeter consists of a current coil connected in series with load, while the other potential coil is connected parallel with load. Depending… Read more

Jan 19, 2013 | By Edvard

Power Measurement In a Three-Phase System

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