When receiving end voltage is higher than sending end voltage?
Table of Contents
- 1 When receiving end voltage is higher than sending end voltage?
- 2 When a long line is under no load condition the receiving end voltage may be more than sending end voltage this called?
- 3 What is high transmission line?
- 4 Which is used to carry higher voltage for long distance transmission?
- 5 What is the difference between medium and long transmission lines?
- 6 How does transmission efficiency depend on the receiving end power factor?
When receiving end voltage is higher than sending end voltage?
Definition: The effect in which the voltage at the receiving end of the transmission line is more than the sending voltage is known as the Ferranti effect. Such type of effect mainly occurs because of light load or open circuit at the receiving end. Ferranti effect is due to the charging current of the line.
When a long line is under no load condition the receiving end voltage may be more than sending end voltage this called?
Ferranti Effect MCQ Question 3 Detailed Solution Therefore, the capacitive var becomes greater than inductive var during no load or light load condition. Due to this phenomenon the receiving end voltage becomes greater than sending end voltage. This effect is also called Ferranti effect.
What are the end parameters in case of medium transmission line?
This method is used for the medium Transmission line….4.6.
| Model of Transmission line | ABCD parameters |
|---|---|
| Nominal π method | A = 1 + YZ/2 B = Z C = Y (1 + YZ/4) D = 1 + YZ/2 |
| Nominal T method | A = 1 + YZ/2 B = Z (1 + YZ/4) C = Y D = 1 + YZ/2 |
| End Condenser method | A = 1 + YZ B = Z C = Y D = 1 |
Why receiving end voltage is less than sending end voltage?
As a case study, the dependence of the receiving-end voltage on the line current is calculated for the line impedance of and a whole line length of 25 km. When the line current increases to more than 366 A, the receiving-end voltage becomes less than the sending-end voltage.
What is high transmission line?
High voltage transmission lines deliver electricity over long distances. The high voltage is required to reduce the amount of energy lost during the distance. Unlike other energy sources such as natural gas, electricity can’t be stored when it is not used. If demand exceeds supply, a blackout occurs.
Which is used to carry higher voltage for long distance transmission?
An important part of this process includes transformers which are used to increase voltage levels to make long distance transmission feasible.
Why is the sending end voltage higher than the receiving end?
In all practical cases, the sending end voltage is higher than the receiving end due to line losses, so current flows from the source or the supply end to the load.
How does the length of a transmission line affect voltage?
From the above equation it is absolutely evident, that the rise in voltage at the receiving end is directly proportional to the square of the line length, and hence in case of a long transmission line it keeps increasing with length, and even goes beyond the applied sending end voltage at times, leading to the phenomena called Ferranti effect.
What is the difference between medium and long transmission lines?
A medium transmission line is classified as a transmission line with: Distributed capacitance form is used for calculation purpose. A long transmission line is classified as a transmission line with: Line constants are considered as distributed over the length of the line.
How does transmission efficiency depend on the receiving end power factor?
Now it is clear that to transmit given amount of power, the load current is inversely proportional to receiving end power factor. Here it is clear that transmission efficiency depends on the receiving end power factor. In this method capacitance is assumed to be lumped at receiving end. One phase is shown below.