A 75 km long 60 Hz transmission line is rated at 220 KV and 150 MVA. The line has the following parameters: r= 0.09 Q/Km x= 0.88 02/km y = 4.1 x 10^-60/km The voltage at the load is 210 KV and the load is rated load that is 150 MVA at a power factor (PF) of 0.85 lagging. 1) Find the series impedance of the line. 2) Find the ABCD parameter of the line. 3) What is the sending end voltage?
Short Transmission Line
A short transmission line is a transmission line that has a length less than 80 kilometers, an operating voltage level of less than 20 kV, and zero capacitance effect.
Power Flow Analysis
Power flow analysis is a topic in power engineering. It is the flow of electric power in a system. The power flow analysis is preliminary used for the various components of Alternating Current (AC) power, such as the voltage, current, real power, reactive power, and voltage angles under given load conditions and is often known as a load flow study or load flow analysis.
Complex Form
A power system is defined as the connection or network of the various components that convert the non-electrical energy into the electric form and supply the electric form of energy from the source to the load. The power system is an important parameter in power engineering and the electrical engineering profession. The powers in the power system are primarily categorized into two types- active power and reactive power.
![A 75 km long 60 Hz transmission line is rated at 220 KV and 150 MVA. The line has the following
parameters:
r= 0.09 Q/Km
x= 0.88 02/km
y = 4.1 x 10^-60/km
The voltage at the load is 210 KV and the load is rated load that is 150 MVA at a power factor
(PF) of 0.85 lagging.
1) Find the series impedance of the line.
2) Find the ABCD parameter of the line.
3) What is the sending end voltage?
4) What is the voltage regulation (VR) of the line?
5) What is the percentage efficiency of the line?
Note: For TL short line, the capacitance is neglected. In this problem is assumed that this is a
balanced three-phase system. So, we need to convert line to line to a single phase.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F53cd4567-e9c0-49bc-8f29-7fe4db37c68a%2Fb0baefa8-3795-4925-9989-883cd3a02f09%2F1htoyq_processed.jpeg&w=3840&q=75)
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![A 75 km long 60 Hz transmission line is rated at 220 KV and 150 MVA. The line has the following
parameters:
r= 0.09 Q/Km
x= 0.88 02/km
y = 4.1 x 10^-60/km
The voltage at the load is 210 KV and the load is rated load that is 150 MVA at a power factor
(PF) of 0.85 lagging.
1) Find the series impedance of the line.
2)
Find the ABCD parameter of the line.
3) What is the sending end voltage?
4) What is the voltage regulation (VR) of the line?
5) What is the percentage efficiency of the line?
Note: For TL short line, the capacitance is neglected. In this problem is assumed that this is a
balanced three-phase system. So, we need to convert line to line to a single phase.](https://content.bartleby.com/qna-images/question/53cd4567-e9c0-49bc-8f29-7fe4db37c68a/27e4cc4b-9fbd-4dba-9295-c5be1bf1d778/lycs13_thumbnail.jpeg)
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