Search results for "Power errors"

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Current transformers effects on the measurement of harmonic active power in LV and MV networks

2011

The harmonic active power is used to determine the location of polluting loads, the direction of harmonic power flow and to estimate how consequential a certain current harmonic source is. The highest uncertainties, when measuring harmonic active power, are introduced by the current and voltage transducers. This paper presents experimental results which show the impact of current transformers (CTs) on the accuracy of the harmonic power measurements. An expression for the evaluation of the power error in distorted conditions was developed which can be easily utilized in the case of linear current transducers. It is shown how CTs cannot be considered linear transducers and how the higher the …

instrument transformersEngineeringVoltage and current harmonicsSwitched-mode power supplyAcousticsActive powerTransducersEnergy Engineering and Power TechnologyLinear currentsPower factorHarmonic powerLinear transducersPower errorsPower transformersVoltage transducersHarmonic analysisHarmonic analysisMaximum valuesCurrent transformerElectrical and Electronic EngineeringPower measurementPhase anglesAbsolute valuesHarmonic power flowTotal harmonic distortionbusiness.industryElectric power distributionCurrent harmonicsElectrical engineeringAC powerCurrent transformerMV networksHarmonicsAccuracy classElectric instrument transformersHarmonicPower system harmonicsCurrent transformers (CTs) instrument transformerspower measurement power system harmonics.businessSettore ING-INF/07 - Misure Elettriche E Elettroniche
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