18 Questions
What is the main advantage of interconnecting electrical supply systems?
Pooling of generation capacity
What is the main reason for reinforcement need in a transmission system?
To meet the increase in load
Which of the following voltage levels has the lowest failure rate for underground cables?
66 kV
What is the main advantage of using high voltage transmission lines?
Conveying electrical energy over long distances efficiently
What is the primary function of a high voltage transmission system?
To convey electrical energy from generating stations to the distribution system
What is the purpose of surge impedance loading in a transmission system?
To convey electrical energy efficiently
What is the primary function of switching and protection equipment in a power system?
To provide safety
What is the primary function of transformers in a power system?
To change voltage and current levels
What is the typical voltage range of distribution feeders?
3.3-33 kV
What is the main purpose of a distribution system in an electric power system?
To deliver electrical energy from transmission substations to customers
What determines the capacity of power lines?
The metal cross-section
What is the primary purpose of a transmission system in an electric power system?
To transport large amounts of power over long distances
What happens to voltage drop and power losses in power lines as the load increases?
They increase
What is the typical range of capacity for distribution feeders?
2-35 MW
What is the typical voltage range of transmission lines in European countries?
300, 400, 500, and 750 kV
What is the purpose of a step-up transformer in a power transmission system?
To increase the voltage level for transmission
What is the primary factor considered when determining the power generation capacity of a power station?
Capital cost, operation, and maintenance costs
What are the main environmental issues associated with power generation?
Radioactive waste, ash disposal, and cooling water supply
This quiz covers the basics of power system design, comparing failure rates of overhead lines and underground cables, and explaining the need for system reinforcement and design procedures.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
