Transmission Line

INTRODUCTION TRANSMISSION LINE Generators and depraves ar connected in concert with transmitting system variants transporting electric power from one orient to another. leavetance blood ancestry must, therefore, take power from generators, transmit it to muddle where it go away be used, and consequently distribute it to exclusive consumers. A ROT: the power capability of a transmission barrier is proportional to the squ be of the voltage on the railroad line. Therefore, real spunky voltage levels be used to transmit power oer unyielding distances. Once the power reaches the bea where it will be used, it is stepped down to lower voltages in distribution substations, and then delivered to customers finished distribution lines. Figure 1 Dual 345 kV transmission line Figure 2 Distribution line with no lay down wire The transmission lines are mainly classified as short, intermediate or vigilant line it is based on the verity of the place and simplicity. suddenly line model is quite sincere, the farsighted line model is somewhat complex and the medium line is in-between the two. At power frequency of 60 or 50 Hz, the lines of continuance below 80 km are treated as short lines and the distance of line special 80 km but less than 250 km give the axe be modelled as medium lines and as the length of lines go through 250 km it is long line.

For short and medium length lines the parameters are lumped. This simplifies the model and gives quite accurate result. In case of the long transmission lines the line parameters are considered as distributed along the le ngth of the line. The aim of the transmissio! n line model is that it should be unproblematic and the analysis of the model should bear desired accuracy. Short Lines contagion line below 80 km length son of a bitch be modeled as short lines. The transmission line is a three phase system and here conceive of as balanced due to transposition and balanced profane at receiving end. In Fig3 is shown a short transmission line. The foeman and inductance are lumped together which is the transmission line series...If you need to get a full essay, order it on our website: OrderCustomPaper.com

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