Questions and Answers
AS/NZS 3000 clauses 4.14.2 to 4.14.5 provide the requirements for installation of which transformer types?
In both high-voltage and low voltage transformers, the transformer bushings are used to:
Which THREE types of information are commonly found on transformer nameplates?
Transformer cores are made from bronze.
Signup and view all the answers
Which THREE of the following are types of transformer laminations?
Signup and view all the answers
Review the following standards and select the THREE relevant industry standards relating to transformers.
Signup and view all the answers
What is the purpose of the Minimum Energy Performance Standards (MEPS)?
Signup and view all the answers
Which type of transformer is usually used in high power switchboard metering applications?
Signup and view all the answers
Which transformers have the highest power rating and continuous voltage performance rating of all classes of transformers?
Signup and view all the answers
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?
Signup and view all the answers
A voltage transformer can be protected from a secondary short circuit by incorporating fuses into the secondary circuits.
Signup and view all the answers
What are the standard values of rated output VA for voltage transformers?
Signup and view all the answers
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.
