Podcast
Questions and Answers
AS/NZS 3000 clauses 4.14.2 to 4.14.5 provide the requirements for installation of which transformer types?
AS/NZS 3000 clauses 4.14.2 to 4.14.5 provide the requirements for installation of which transformer types?
- Secondary circuit, Low voltage transformer supply, Auto-transformers, Step-up transformers (correct)
- Primary circuit, High voltage transformer supply, Auto-transformers, Step-up transformers
- Primary circuit, Low voltage transformer supply, Auto-transformers, Step-down transformers
- Secondary circuit, High voltage transformer supply, Manual transformers, Step-up transformers
In both high-voltage and low voltage transformers, the transformer bushings are used to:
In both high-voltage and low voltage transformers, the transformer bushings are used to:
- Calibrate the transformer impedance
- Insulate the transformer terminals (correct)
- Secure the transformer to the concrete slab
- Identify the transformer windings
Which THREE types of information are commonly found on transformer nameplates?
Which THREE types of information are commonly found on transformer nameplates?
- Winding connections (correct)
- KW rating (correct)
- Frequency (correct)
- Serial number (correct)
Transformer cores are made from bronze.
Transformer cores are made from bronze.
Which THREE of the following are types of transformer laminations?
Which THREE of the following are types of transformer laminations?
Review the following standards and select the THREE relevant industry standards relating to transformers.
Review the following standards and select the THREE relevant industry standards relating to transformers.
What is the purpose of the Minimum Energy Performance Standards (MEPS)?
What is the purpose of the Minimum Energy Performance Standards (MEPS)?
Which type of transformer is usually used in high power switchboard metering applications?
Which type of transformer is usually used in high power switchboard metering applications?
Which transformers have the highest power rating and continuous voltage performance rating of all classes of transformers?
Which transformers have the highest power rating and continuous voltage performance rating of all classes of transformers?
To accommodate changes in load, large distribution transformers are fitted with variable tappings to give relatively small changes in transformation ratio. What does this compensate for?
To accommodate changes in load, large distribution transformers are fitted with variable tappings to give relatively small changes in transformation ratio. What does this compensate for?
A voltage transformer can be protected from a secondary short circuit by incorporating fuses into the secondary circuits.
A voltage transformer can be protected from a secondary short circuit by incorporating fuses into the secondary circuits.
What are the standard values of rated output VA for voltage transformers?
What are the standard values of rated output VA for voltage transformers?
Study Notes
Transformer Types and Applications
- AS/NZS 3000 clauses 4.14.2 to 4.14.5 specify installation requirements for transformers, including secondary circuit, low voltage supply, auto-transformers, and step-up transformers.
- Transformer bushings serve the crucial purpose of insulating the transformer terminals.
- Common information found on transformer nameplates includes KW rating, winding connections, serial number, and frequency.
Transformer Core and Laminations
- Transformer cores are not made from bronze; this statement is false.
- Types of transformer laminations include W&M Type, E&I Type, and L Type.
Industry Standards
- Relevant industry standards related to transformers include:
- AS 2374.1.2: Minimum Energy Performance Standard (MEPS) requirements for power transformers.
- AS 2374.1: General requirements for power transformers.
- AS 60076.11-2006: Standards for dry-type power transformers.
Minimum Energy Performance Standards (MEPS)
- MEPS aim to help customers understand appliance efficiency, facilitating informed choices regarding energy usage.
High Power Applications
- Current Transformers are commonly used in high-power switchboard metering applications.
- Power transformers have the highest power ratings and continuous voltage performance ratings among all transformer classes.
Load Adaptation
- Large distribution transformers feature variable tappings that compensate for changes in load and supply voltage in distribution systems.
Voltage Transformer Protection
- Voltage transformers can be protected from secondary short circuits by incorporating fuses in the secondary circuits.
Standard Values for Voltage Transformers
- Standard rated output values for voltage transformers typically range from 10VA to 500VA.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on various types of transformers, their applications, and industry standards including MEPS. This quiz covers essential installation requirements and transformer components. Assess your understanding of transformer specifications and classifications.
