Virtual Labs

Electrical Engineering Virtual Power Lab Experiments

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Study of the Ferranti Effect in a Transmission Line or Cable

Choose difficulty:

Beginner

Intermediate

Advanced

1. If the receiving end voltage is greater than the sending end voltage, regulation of transmission line is:

a: Positive Explanation

Explanation

b: Negative Explanation

Explanation

c: Zero Explanation

Explanation

d: None of these Explanation

Explanation

2. The charging current in the transmission line:

a: lags the voltage by 90° Explanation

Explanation

b: leads the voltage by 45° Explanation

Explanation

c: leads the voltage by 90° Explanation

Explanation

d: leads the voltage by 180° Explanation

Explanation

3. The reflection coefficient of an open-ended transmission line is:

a: 1.0 Explanation

Explanation

b: 0.5 Explanation

Explanation

c: -1.0 Explanation

Explanation

d: 2.0 Explanation

Explanation

4. Ferranti effect is experienced on a long overhead transmission lines when it is:

a: Lightly loaded Explanation

Explanation

b: fully load at unity pf Explanation

Explanation

c: fully load at 0.8 p.f. lag Explanation

Explanation

d: none of the above Explanation

Explanation

5. The power loss in a transmission line due to charging current is:

a: Ic²R Explanation

Explanation

b: Ic²R/4 Explanation

Explanation

c: Ic²R/2 Explanation

Explanation

d: Ic²R/8 Explanation

Explanation

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