An overhead line with surge impedance of 400 Ω is terminated through a resistance R. A surge travelling over the line does not suffer any reflection at the junction, if the value of R is
What is the approximate value of the surge impedance loading of a 400 kV, 3-phase 50 Hz overhead single circuit transmission line
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Surge impedance loading of a transmission line is also known as:
The surge impedance of 100 km long underground cable is 50 Ω. The surge impedance for 50 km length of similar cable would be:
Surge impedance of Phase, 400 kV transmission line is 200 Ω. The surge impedance loading of the transmission line is
The surge impedance of a 50-mile-long underground cable is 50 ohms. It will be _________ for a length of 25 miles.
Generally characteristic impedance of cable is taken as _______
What is the nature of power factor if surge impedance loading is less than load?
The SIL (Surge Impedance Loading) of the transmission line for given configuration 3-phase, 200 kV, 400 ohm is:
Consider the following statements:
1. If loading is less than SIL the transmission line will act as a source of reactive power.
2. If loading is more than the SIL receiving current is more than sending end current.
3. Both sending end and receiving end power factors are unity whenever loading is equal to surge impedance loading (SIL)
Which of the above statement(s) is/are correct?
21 videos|67 docs|45 tests
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21 videos|67 docs|45 tests
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