Answer Posted / denzel101

Ammeters and voltmeters read R.M.S values

Symmetrical faults are balance faults occuring in power
system. For a fault to be classified as symmetrical, all
three phases must draw equal fault currents and the phase
displacement must remain 120 degrees. examples

1. all phases shorted to each other.
2.all three phases shorted to earth.

Unsemmetrical faults occurs when one or two phases are
shorted to earth or two phases to each other.the faulty
phases will draw fault currents which are not equal in
magnitude with healthy phases and does not have 120 degree
phase displacement.

what are symmetrical and non symmetrical components in electrical installation.

2091

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If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.

1097

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Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box

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types of central Air conditioner plant?

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hi frnz,can somebody give me any project work? i am a 2nd year student & interested in practical works...plz give me some projects

2007

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what is the size of cable for 15kw motor and 85 meter cable length using with vfd

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What is the formula to calculate the rating of a three phase air circuit breaker

2334

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How to define Kirchhoff current law and voltage law along with simply examples.

1785

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can u please mail me the syllabus for GET exam for damodar valley corporation?

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why transformer tank is in rectangular shape what happen when it is in step shape

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USE OF 8 WAY PAN ASSEMBLY

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When will you multiply and devide with derating factors to the actual value while sizing the cable?

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What is error of a measurement?

1227

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What Is Sampling?

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What is a DC series motor?

1253

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