Losses in Transformers

What are the two main types of losses in transformers?

• Copper losses and Iron losses

• Plastic losses and Metal losses

• Wood losses and Stone losses

• Water losses and Air losses

What causes copper losses in transformers?

• External temperature fluctuations

• Friction in the transformer's moving parts

• Resistance of the copper wire used in windings

• Leakage of transformer oil

How can copper losses in transformers be reduced?

• By using thicker insulation

• By decreasing the transformer's usage

• By painting the transformer

• By increasing the cross-sectional area of conductors

What is the formula to calculate copper/heat loss in a transformer?

• Pc = I + R

• Pc = I / R

• Pc = I - R

What are eddy currents?

• Currents that only appear at high temperatures

• Currents that are used to cool the transformer

• Currents that flow in the opposite direction of the primary current

• Currents that flow in a straight line

What is hysteresis loss in transformers?

• Loss due to the transformer being overloaded

• Loss due to the magnetism that remains after removing the magnetic field

• Loss due to the resistance of the windings

• Loss due to the transformer vibrating

How can iron losses in transformers be minimized?

• By submerging the transformer in water

• By operating the transformer at lower voltages

• By using a solid gold core

• By using a laminated iron core

What is the effect of resistance in transformer windings?

• It increases the transformer's output power

• It has no effect on the transformer

• It produces heat, reducing efficiency

• It makes the transformer lighter

Why are copper losses considered unavoidable to an extent?

• Because the laws of physics can be ignored

• Because transformers are not designed properly

• Because the resistance of conductors used cannot be eliminated completely

• Because all transformers must operate at high temperatures

What materials are transformer windings most commonly made from?

• Copper or Aluminium

• Wood or Stone

• Gold or Silver

• Plastic or Rubber