Questions :- Construction of Transformer
🔹 Core & Windings Related
What is the purpose of core in a transformer?
Why are transformer cores laminated?
Which material is used for transformer core and why?
What are core-type and shell-type transformers?
What is the function of primary and secondary windings?
Why copper is preferred for winding material?
How are windings insulated from each other?
🔹 Transformer Oil & Tank What is the purpose of transformer oil?
What are the properties of good transformer oil?
What is the function of transformer tank?
Why is oil used in transformers?
What is the function of conservator tank?
🔹 Cooling & Breather
What is the purpose of cooling in transformers?
What are different types of cooling in transformers?
What is ONAN and ONAF cooling system?
What is the function of silica gel in transformer breather?
Why is breather used in a transformer?
🔹 Safety Devices & Relays
What is Buchholz relay?
Where is it used?
How does Buchholz relay work?
Why is Buchholz relay not used in dry-type transformers?
🔹 Tap Changer Related
What is the purpose of tap changer in a transformer?
What is the difference between on-load and off-load tap changer?
Why is tap changer provided on HV side?
🔹 Bushings & Insulation
What is the function of bushings?
What is the function of insulation in a transformer?
Which materials are used for insulation?
🔹 General Construction & Design
What are the main parts of a transformer?
What are the differences between dry-type and oil-immersed transformer?
Why is the transformer core grounded?
What are the advantages of using conservator tank?