Podcast
Questions and Answers
What are the main components of a transformer?
What are the main components of a transformer?
Core, windings, and insulating fluid
Transformers come with ____ to release compressed air.
Transformers come with ____ to release compressed air.
Pressure relief valve
What is the key component of a transformer that provides a path for magnetic coupling of two windings?
What is the key component of a transformer that provides a path for magnetic coupling of two windings?
Core
The transformer core is made of?
The transformer core is made of?
Signup and view all the answers
How does the transformer core improve its efficiency?
How does the transformer core improve its efficiency?
Signup and view all the answers
Transformer core is constructed in what configurations?
Transformer core is constructed in what configurations?
Signup and view all the answers
Wound type core is an example of?
Wound type core is an example of?
Signup and view all the answers
Shell type core is an example of?
Shell type core is an example of?
Signup and view all the answers
What type of steel has been recently utilized to further reduce the losses with the core?
What type of steel has been recently utilized to further reduce the losses with the core?
Signup and view all the answers
What is the most popular material for the windings in a transformer?
What is the most popular material for the windings in a transformer?
Signup and view all the answers
Which windings in a transformer are smaller?
Which windings in a transformer are smaller?
Signup and view all the answers
Which windings in a transformer are larger?
Which windings in a transformer are larger?
Signup and view all the answers
What shape are the winding wires in a transformer?
What shape are the winding wires in a transformer?
Signup and view all the answers
Why are winding conductors coated with insulation?
Why are winding conductors coated with insulation?
Signup and view all the answers
How are the secondary windings tagged?
How are the secondary windings tagged?
Signup and view all the answers
What plays a critical role in cooling and insulating the core and coil assembly?
What plays a critical role in cooling and insulating the core and coil assembly?
Signup and view all the answers
How does the insulating fluid facilitate cooling?
How does the insulating fluid facilitate cooling?
Signup and view all the answers
The circulation of the oil by heat is called?
The circulation of the oil by heat is called?
Signup and view all the answers
What type of oil is typically used in transformers?
What type of oil is typically used in transformers?
Signup and view all the answers
Convection of transformer oil is similar to?
Convection of transformer oil is similar to?
Signup and view all the answers
PCB stands for?
PCB stands for?
Signup and view all the answers
PCB insulating fluid is typically known as?
PCB insulating fluid is typically known as?
Signup and view all the answers
What should you refer to when determining proper handling procedures when working with old PCB transformers?
What should you refer to when determining proper handling procedures when working with old PCB transformers?
Signup and view all the answers
What cools the transformer?
What cools the transformer?
Signup and view all the answers
Insulating fluid is identified by?
Insulating fluid is identified by?
Signup and view all the answers
What can build up inside a transformer?
What can build up inside a transformer?
Signup and view all the answers
How is pressurized gas formed inside a transformer?
How is pressurized gas formed inside a transformer?
Signup and view all the answers
What hazards are there when working around a transformer?
What hazards are there when working around a transformer?
Signup and view all the answers
How do manufactures help prevent excessive gas from forming inside a transformer?
How do manufactures help prevent excessive gas from forming inside a transformer?
Signup and view all the answers
Where is the pressure relief valve located on a pole mounted transformer?
Where is the pressure relief valve located on a pole mounted transformer?
Signup and view all the answers
At what pressure will the pressure relief valve activate and vent excess gas?
At what pressure will the pressure relief valve activate and vent excess gas?
Signup and view all the answers
What additional components are added internally into a CSP transformer?
What additional components are added internally into a CSP transformer?
Signup and view all the answers
Internal faults in a CSP transformer are isolated how?
Internal faults in a CSP transformer are isolated how?
Signup and view all the answers
How are internal fuses replaced in CSP transformers?
How are internal fuses replaced in CSP transformers?
Signup and view all the answers
What component is intended to disconnect the hot legs of a CSP transformer in the event of an overload or short circuit in the secondary side?
What component is intended to disconnect the hot legs of a CSP transformer in the event of an overload or short circuit in the secondary side?
Signup and view all the answers
How are pad mounted transformer fuses different from pole mounted transformers?
How are pad mounted transformer fuses different from pole mounted transformers?
Signup and view all the answers
Where are fuses located in pad mounted transformers?
Where are fuses located in pad mounted transformers?
Signup and view all the answers
What is this CSP transformer component, Primary fuse?
What is this CSP transformer component, Primary fuse?
Signup and view all the answers
What is this CSP transformer component, Secondary breaker?
What is this CSP transformer component, Secondary breaker?
Signup and view all the answers
Study Notes
Transformer Components
- Main components: core, windings, and insulating fluid.
- Core provides a path for magnetic coupling between the windings.
- Transformer cores are constructed from thin laminations of grain-oriented silicon steel, coated with insulating material.
Core Types
- Wound type core and shell type core are two configurations for transformer cores.
- Amorphous steel is utilized to reduce energy losses in the core.
Windings
- Copper is the most popular material for transformer windings.
- Primary windings are smaller than secondary windings.
- Winding wires can be round or rectangular ribbon and are insulated to prevent short circuits.
- Secondary windings are tagged A, B & C, D.
Insulating Fluid
- Essential roles include cooling and insulating the core and coil assembly.
- Insulating fluid facilitates cooling by transferring heat to the tank or radiators.
- Convection describes the oil circulation, similar to hot wax around a candle wick.
- Mineral oil is the typical choice for insulating fluid.
- Identification can be done through non-PCB tags or data on the nameplate.
Pressure Management
- Transformers can build up pressure in the form of gas due to winding shorts.
- Excess gas can lead to hazards, like the lid blowing off.
- Countermeasures include installing a pressure relief valve, located above the oil level, which activates around 10 psi.
CSP Transformers
- CSP transformers contain internal fuses and a secondary breaker to isolate faults.
- Internal faults are managed by these fuses, which can be replaced by de-energizing the transformer and removing the lid.
- Internal secondary breakers disconnect hot legs during overloads or short circuits.
Fuses and Breakers
- Pad-mounted transformer fuses differ from pole-mounted fuses as they operate externally but are located inside the transformer.
- In pad-mounted transformers, fuses are found on the primary side compartment underneath the oil level.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Explore the essential components of transformers, including the core, windings, and insulating fluid. Learn how each part contributes to the efficient operation of transformers, with insights into material choices and designs. Test your knowledge on the different core types and the role of insulating fluids in transformer functionality.
