Podcast
Questions and Answers
What is the purpose of the conservator in an oil-filled transformer?
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?
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?
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?
What is the purpose of bushings in a transformer?
What is the purpose of a breather 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?
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 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?
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?
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 used to reduce length of mean turn and consequent I^2R loss in transformers?
What is the main purpose of a transformer?
What is the main purpose of a transformer?
How many electric circuits does a single-phase transformer have?
How many electric circuits does a single-phase transformer have?
What is the material used for the core of a transformer?
What is the material used for the core of a transformer?
How does a transformer function?
How does a transformer function?
What purpose does the transformer serve if the energy transfer occurs at the same voltage?
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 is the main reason for the widespread popularity of AC systems over DC systems?
What type of device is a transformer?
What type of device is a transformer?
Why are the laminations of the transformer core insulated from each other?
Why are the laminations of the transformer core insulated from each other?
What is the main purpose of a transformer?
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 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 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 material is commonly used for the core of a transformer?
What is the purpose of laminating the core of a transformer?
What is the purpose of laminating the core of a transformer?
What type of device is a transformer?
What type of device is a transformer?
How many electric circuits does a single-phase transformer have?
How many electric circuits does a single-phase transformer have?
What does the absence of moving parts in transformers result in?
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?
What is the type of winding used in transformers with lower current carrying capacity?
