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Electrical Engineering Virtual Power Lab Experiments

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Study of Effect of Different Electrode Shapes on Dielectric (Air) Breakdown

Choose difficulty:

Beginner

Intermediate

Advanced

1. Impulse ratio of a rod gap -

a: Unity Explanation

Explanation

b: Between 1.2 and 1.5 Explanation

Explanation

c: Between 1.6 and 1.8 Explanation

Explanation

d: Between 2 and 2.2 Explanation

Explanation

2. which electrode has minimum breakdown voltage -

a: Sphere electrode Explanation

Explanation

b: Pointed electrode Explanation

Explanation

c: Flat Electrode Explanation

Explanation

d: Big sphere electrode Explanation

Explanation

3. The insulation of the modern EHV lines is designed based on -

a: The lightning voltage Explanation

Explanation

b: The switching voltage Explanation

Explanation

c: Corona Explanation

Explanation

d: RI Explanation

Explanation

4. Minimum sparking potential of Air is about -

a: 100 V Explanation

Explanation

b: 4.4 kV Explanation

Explanation

c: 40 V Explanation

Explanation

d: 325 V Explanation

Explanation

5. Electrostatic voltmeter can measure -

a: Only DC voltages Explanation

Explanation

b: Both DC and AC voltages upto high frequency Explanation

Explanation

c: Impulse voltages Explanation

Explanation

d: Only DC and AC peak voltages Explanation

Explanation

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