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Transformer Faults and Protection

easy 10 Questions
Question 1 of 10

Which of the following is a key design factor for transformers?

Protection against internal and external faults is a critical design consideration for transformers.
Question 2 of 10

What is the primary function of transformer oil?

Transformer oil serves as an electrical insulator within the transformer.
Question 3 of 10

What is a major cause of oil degradation?

Contamination is a significant factor in the degradation of transformer oil.
Question 4 of 10

What can indicate oil failure?

Gas formation in the oil is a common indicator of oil failure.
Question 5 of 10

What can cause overheating in the transformer core?

Defective core insulation or conducting bridges can cause overheating.
Question 6 of 10

What is the result of mechanical impacts exceeding 3g on the core?

Mechanical impacts above 3g can distort the transformer core.
Question 7 of 10

What is a common winding fault?

Short circuits between turns of the winding are a common type of fault.
Question 8 of 10

What forces do windings experience?

Windings are subject to radial and axial forces.
Question 9 of 10

What is the permissible temperature for transformer oil at rated load?

The permissible temperature for transformer oil is 65°C.
Question 10 of 10

What can cause overheating beyond manufacturer specifications?

Overheating can be caused by both overloads and external short circuits.
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