Quiz #19: Transformer Oil System Challenges

Transformer Oil Quiz
1. What is the primary function of transformer oil in a substation transformer?
A) To cool the transformer
B) To insulate the transformer
C) Both A and B
D) To lubricate the transformer

2. Which of the following is a common method for testing transformer oil quality?
A) Viscosity test
B) Dielectric breakdown test
C) Flash point test
D) All of the above

3. What is the function of a conservator tank in a transformer oil system?
A) To store extra oil
B) To allow for oil expansion
C) To filter the oil
D) To cool the oil

4. What is the effect of high acidity in transformer oil?
A) It improves insulation
B) It reduces dielectric strength
C) It increases cooling efficiency
D) It has no effect

5. What is a common method for removing dissolved gases from transformer oil?
A) Filtration
B) Centrifugation
C) Vacuum degassing
D) Sedimentation

6. What is the purpose of a transformer oil purification process?
A) To remove contaminants
B) To restore dielectric strength
C) To improve cooling efficiency
D) All of the above

7. What is a potential consequence of using oil with low dielectric strength in a transformer?
A) Improved insulation
B) Increased risk of transformer failure
C) Reduced cooling efficiency
D) Both B and C

8. What is the role of a desiccant in a transformer oil system?
A) To increase viscosity
B) To absorb moisture
C) To improve color
D) To reduce cost

9. What should you do if transformer oil has a high water content?
A) Ignore it
B) Replace the oil
C) Dry the oil using vacuum dehydration
D) Both B and C

10. What is the significance of the pour point in transformer oil?
A) It indicates the oil's viscosity
B) It measures the oil's flammability
C) It shows the oil's low-temperature fluidity
D) It determines the oil's cooling efficiency


 

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