Transmission lines are defined as the means of transferring massive electrical energy from generating plants to distribution utilities. Simply put, it is a link between power sources(generating stations) and distribution systems and might be tapped to other power systems through proper interconnections.
Transmission lines are divided into three categories: the standard High Voltage(HV) transmission lines that ranges from 115kV to 230kV, the Extra High Voltage(EHV) lines that ranges from 345kV to 765kV, and the Ultra High Voltage(UHV) lines that ranges from 1000kV to 1500kV.
The selection of the said lines varies directly in the capacity of the power demand in a certain location which is in Mega Volt-Amperes(MVA). The larger the power demand, the larger is the current passing along the line and consequently produces a high power losses due to cable heating. Assuming the same power capacity, we need a higher voltage to operate since voltage and current are inversely proportional to each other. If voltage goes up, consequently the current goes down.
This is one of the main objective of transmission lines study. To reduce losses using HV lines without compromising safety standards, economy, and environmental concern.
The selection of the said lines varies directly in the capacity of the power demand in a certain location which is in Mega Volt-Amperes(MVA). The larger the power demand, the larger is the current passing along the line and consequently produces a high power losses due to cable heating. Assuming the same power capacity, we need a higher voltage to operate since voltage and current are inversely proportional to each other. If voltage goes up, consequently the current goes down.
This is one of the main objective of transmission lines study. To reduce losses using HV lines without compromising safety standards, economy, and environmental concern.
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