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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the main purpose of cooling systems in transformers?
💡 Hint: Consider the importance of thermal management.
Question 2
Easy
Define ONAN in the context of transformer cooling.
💡 Hint: Focus on oil and air involvement.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does ONAN stand for?
- Oil Natural Air Natural
- Oil Non-active Air Natural
- Operational Natural Air Natural
💡 Hint: Remember that it refers to a natural cooling method.
Question 2
True or False: ONAF uses natural convection.
- True
- False
💡 Hint: Think about the definition of forced vs natural cooling.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A large transformer dissipates 100 kW of heat during peak operation. Determine which cooling method would be most appropriate for this transformer and justify your answer.
💡 Hint: Think about the efficiency of active vs passive systems.
Question 2
If a transformer using ONAN is startled with increased loads, how might this affect its operational safety and what solutions could mitigate potential overheating?
💡 Hint: Reflect on how cooling systems adapt to changing loads.
Challenge and get performance evaluation