Single-Phase Transformer Introduction Quiz

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What is the purpose of the conservator in an oil-filled transformer?

To reduce the expansion of the oil

To increase the pressure inside the transformer tank

To cool down the transformer during operation

To allow room for expansion of the oil (correct)

What are the two types of losses that occur during the operation of a transformer?

Primary and secondary losses

Core and Cu losses (correct)

Conservator and breather losses

Oil and winding losses

In which type of transformers do the windings surround a considerable part of the core?

Wound-core type

Spiral-core type

Shell type

Core type (correct)

What is the purpose of bushings in a transformer?

To provide proper insulation to the output leads of the transformer tank Signup and view all the answers

What is the purpose of a breather in a transformer?

To absorb moisture and dust by the transformer oil Signup and view all the answers

Which type of winding is of higher cross section due to carrying higher current?

Low voltage winding Signup and view all the answers

What is the order of relative permeability of the core material used in transformers?

1000 Signup and view all the answers

What method is used to keep the temperature of core and winding within limits in a transformer?

Different cooling methods Signup and view all the answers

In which type of transformers does core stepping give high space factor?

Spiral-core or wound-core (Spirakore) Signup and view all the answers

What is used to reduce length of mean turn and consequent I^2R loss in transformers?

(Core) stepping Signup and view all the answers

What is the main purpose of a transformer?

To transfer electrical energy from one circuit to another Signup and view all the answers

How many electric circuits does a single-phase transformer have?

Two Signup and view all the answers

What is the material used for the core of a transformer?

Silicon steel Signup and view all the answers

How does a transformer function?

By working on the principle of mutual induction Signup and view all the answers

What purpose does the transformer serve if the energy transfer occurs at the same voltage?

It isolates the two electric circuits Signup and view all the answers

What is the main reason for the widespread popularity of AC systems over DC systems?

Higher efficiency Signup and view all the answers

What type of device is a transformer?

Static device with no moving parts Signup and view all the answers

Why are the laminations of the transformer core insulated from each other?

To reduce eddy current losses Signup and view all the answers

What is the main purpose of a transformer?

To transfer electrical energy from one circuit to another Signup and view all the answers

What type of energy does the transformer convert the energy received by the primary winding into?

Electromagnetic energy Signup and view all the answers

What is one of the benefits of transformers due to the absence of moving parts?

Low maintenance requirements Signup and view all the answers

What material is commonly used for the core of a transformer?

Steel with 4% silicon Signup and view all the answers

What is the purpose of laminating the core of a transformer?

To reduce eddy current losses Signup and view all the answers

What type of device is a transformer?

Passive device Signup and view all the answers

How many electric circuits does a single-phase transformer have?

Two electric circuits linked by a common magnetic circuit Signup and view all the answers

What does the absence of moving parts in transformers result in?

Very little maintenance and high efficiency Signup and view all the answers

What is the type of winding used in transformers with lower current carrying capacity?

Secondary winding Signup and view all the answers

Single-Phase Transformer Introduction Quiz

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Questions and Answers

What is the purpose of the conservator in an oil-filled transformer?

What are the two types of losses that occur during the operation of a transformer?

In which type of transformers do the windings surround a considerable part of the core?

What is the purpose of bushings in a transformer?

What is the purpose of a breather in a transformer?

Which type of winding is of higher cross section due to carrying higher current?

What is the order of relative permeability of the core material used in transformers?

What method is used to keep the temperature of core and winding within limits in a transformer?

In which type of transformers does core stepping give high space factor?

What is used to reduce length of mean turn and consequent I^2R loss in transformers?

What is the main purpose of a transformer?

How many electric circuits does a single-phase transformer have?

What is the material used for the core of a transformer?

How does a transformer function?

What purpose does the transformer serve if the energy transfer occurs at the same voltage?

What is the main reason for the widespread popularity of AC systems over DC systems?

What type of device is a transformer?

Why are the laminations of the transformer core insulated from each other?

What is the main purpose of a transformer?

What type of energy does the transformer convert the energy received by the primary winding into?

What is one of the benefits of transformers due to the absence of moving parts?

What material is commonly used for the core of a transformer?

What is the purpose of laminating the core of a transformer?

What type of device is a transformer?

How many electric circuits does a single-phase transformer have?

What does the absence of moving parts in transformers result in?

What is the type of winding used in transformers with lower current carrying capacity?

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