Transformer Functions and Components

The video tutorial explains transformers, which are devices that transfer electrical voltage between circuits through electromagnetic induction. It covers the main parts, such as the core and windings, and explains the working principle based on Faraday's law. The video distinguishes between step-up and step-down transformers and discusses energy losses and cooling methods, including the use of transformer oil and radiators. It also highlights the importance of fault detection using a Buchholz relay.

What is the primary function of a transformer?

• To convert AC to DC

• To store electrical energy

• To transfer electrical voltage levels

• To generate electricity

What material is the core of a transformer typically made from?

• Iron or silicon steel

• Aluminum

• Plastic

• Copper

What is the role of the primary winding in a transformer?

• To provide mechanical support

• To cool the transformer

• To insulate the transformer

• To receive electrical power from the source

How does a step-up transformer differ from a step-down transformer?

• It decreases voltage

• It converts AC to DC

• It increases voltage

• It stores energy

What is the purpose of insulation between the primary and secondary windings?

• To decrease current

• To prevent short circuits

• To enhance magnetic flux

• To increase voltage

What is the function of insulated bushings in a transformer?

• To support the core

• To prevent energy losses

• To receive electric energy

• To cool the transformer

Which type of loss is NOT typically associated with transformers?

• Eddy current losses

• Hysteresis losses

• Copper losses

• Mechanical losses

What is the primary role of transformer oil?

• To act as a coolant and insulate

• To decrease current

• To store energy

• To increase voltage

How do radiators help in the functioning of a transformer?

• They increase voltage

• They accelerate the cooling rate

• They convert AC to DC

• They store electrical energy

What is the purpose of a Buchholz relay in a transformer?

• To convert AC to DC

• To store energy

• To detect faults inside the transformer

• To increase voltage