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Electrical Engineering Virtual Power Lab Experiments

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Theory

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Procedure

Simulation

Posttest

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Measurement of Dielectric Strength of Transformer Oil

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Beginner

Intermediate

Advanced

1. When oil decomposed it liberates-

a: Carbon Explanation

Explanation

b: Hydrogen Explanation

Explanation

c: Carbon and Hydrogen Explanation

Explanation

d: None Explanation

Explanation

2. Dielectric strengths of Air at NTP is

a: 50 kV/mm Explanation

Explanation

b: 25 kV/mm Explanation

Explanation

c: 12 kV/mm Explanation

Explanation

d: 3 kV/mm Explanation

Explanation

3. The Break Down Voltage (BDV) of transformer oil is measured when-

a: One point flash occurs Explanation

Explanation

b: Two point flash occurs Explanation

Explanation

c: Multi point flash occurs Explanation

Explanation

d: None of the above Explanation

Explanation

4. The most commonly used unit of dielectric strength is -

a: kV/mm. Explanation

Explanation

b: V/cm. Explanation

Explanation

c: MV/mm. Explanation

Explanation

d: kV/m. Explanation

Explanation

5.The maximum pour point temperature of dielectric oil is-

a: -6° C Explanation

Explanation

b: 10° C Explanation

Explanation

c: 1° C Explanation

Explanation

d: 50° C Explanation

Explanation

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