Differentiation of Harmonic Current Effect at T-Joint and Corner Joint on Three Phase 100kVA Transformer Losses

Dina Maizana; Emi Zurima Bt Ismail; Nuriziani Hussin

doi:10.4028/www.scientific.net/AMM.679.254

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 679Differentiation of Harmonic Current Effect at...

Differentiation of Harmonic Current Effect at T-Joint and Corner Joint on Three Phase 100kVA Transformer Losses

Abstract:

This paper describes the harmonic current effect at T-joint and corner joint on 3 phase 100kVA transformer model. The methodology that used to measure a harmonic current is using search coil connected to oscilloscope. The experiment is conducted by changing input voltage with different flux density. From the results obtained, the 3^rd order harmonic current shows the highest for both T – joint and corner joint. The highest harmonic occurred at T – joint. For in plane, the harmonic current is 0.237A at corner joint and 0.389A at T - joint. At normal condition, the harmonic current were 0.250A and 0.769A at corner joint and T – joint respectively. This happened because of more energy required for transferring the flux to the left and right of the core. The corner joint of harmonic is less since the flux direction is 90° thus smaller amount of energy is required for the movement.

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Periodical:

Applied Mechanics and Materials (Volume 679)

Pages:

254-260

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.679.254

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Online since:

October 2014

Authors:

Dina Maizana*, Emi Zurima Bt Ismail, Nuriziani Hussin

Keywords:

Corner Joint, Harmonic Current, T - Joint, Transformer

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