Harmonics in the exciting current of transformers . any thirdharmonics the sum would not be zero since the third harmonics are in itis self evident that there can be no third harmonics in the line a sys-tem si ilar to the one above but with the primaries connected in star there can beno third harmonics in the line currents for the three currents add up to zero andif there were triple harmonics the three currents in the lines could not add up tozero. Refering to Plates 4 and 5 the triple is very would have beenno triple if the transformers had been perfectly
Harmonics in the exciting current of transformers . any thirdharmonics the sum would not be zero since the third harmonics are in itis self evident that there can be no third harmonics in the line a sys-tem si ilar to the one above but with the primaries connected in star there can beno third harmonics in the line currents for the three currents add up to zero andif there were triple harmonics the three currents in the lines could not add up tozero. Refering to Plates 4 and 5 the triple is very would have beenno triple if the transformers had been perfectly 4 shows the linecurrent wave with star connected primary and delta 5 shows the line current wave with delta connected primary and open delta wave distor-tion differs greatly in the two cases , due to the fact that the fifth harmonic inboth cases is large and has a different angle of phase displacement relative to thefundamental . Higher harmonics other than the third and its multiples were EUGENE DiETiaCN CO CHICACO-NCW YORK
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1912
