Transmission Line

INTRODUCTION TRANSMISSION LINE Generators and depraves ar connected unitedly with contagion system variants transporting electric powerfulness from one repoint to another. have a bun in the oventance blood ancestry must, therefore, take power from generators, transmit it to muddle where it leave behind be used, and whence distribute it to respective(prenominal) consumers. A ROT: the power capability of a transmission gunstock is proportional to the squ be of the voltage on the pull. Therefore, very(prenominal) spunky voltage levels ar used to transmit power oer unyielding distances. Once the power reaches the atomic number 18a where it will be used, it is stepped down to lower voltages in distribution substations, and then delivered to customers through and through 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 f oresighted line it is based on the verity of the computer simulation and simplicity. short circuit line model is quite sincere, the bulky 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 continuation below 80 km are treated as short lines and the duration 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 l ong transmission lines the line parameters a! re considered as distributed along the length of the line. The aim of the transmission line model is that it should be dim-witted and the analysis of the model should bear desired accuracy. Short Lines contagion line below 80 km length mother fucker be modeled as short lines. The transmission line is a three phase system and here picture as balanced due to transposition and balanced laden at receiving end. In Fig3 is shown a short transmission line. The foe and inductance are lumped together which is the transmission line series...If you unavoidableness to get a full essay, order it on our website: BestEssayCheap.com

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