Transmission Line in Power System

What is Transmission Line? Transmission line is the long conductor with special design (bundled) to carry bulk amount of generated power at very high voltage from one station to another as per variation of the voltage level. Type of Transmission Line In transmission line determination of voltage drop, transmission efficiency, line loss etc. are important … Read more

Medium Transmission Line

The transmission line having its effective length more than 80 km but less than 250 km is generally referred to as a medium transmission line. Due to the line length being considerably high, admittance Y of the network does play a role in calculating the effective circuit parameters, unlike in the case of short transmission … Read more

Long Transmission Line

A power transmission line with its effective length of around 250 Kms or above is referred to as a long transmission line. The line constants are uniformly distributed over the entire length of line. Calculations related to circuit parameters (ABCD parameters) of such a power transmission is not that simple, as was the case for … Read more

Short Transmission Line

The transmission lines which have length less than 50 km are generally referred as short transmission lines. For short length, the shunt capacitance of this type of line is neglected and other parameters like electrical resistance and inductor of these short lines are lumped, hence the equivalent circuit is represented as given below. Let’s draw … Read more

Electrical Power Transmission System and Network

Electrical Power Transmission System Various generating stations generate electrical power. These generating stations are not necessarily situated at the load center. During construction of generating station number of factors are to be considered from the economic point of view. These all factors may not be easily available at load center; hence generating stations are not … Read more

Voltages in Power Transmission Lines or Transmission Voltages

In electrical generating power stations, electrical power is generated at medium voltage level that ranges from 11 kV to 25 kV. This generated power is sent to the generating step up transformer to make the voltage level higher. From this point to the user end voltage level varies in different levels. We can realize this … Read more