Power System Controls and Stability Introduction
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Questions and Answers

What is the primary indication of the balance between generation and demand in a power system?

  • Frequency (correct)
  • Reactive power
  • Load current
  • Voltage level

    • What happens to the frequency when generation is greater than demand?

  • It remains constant
  • It increases (correct)
  • It becomes unstable
  • It decreases

    • What is the function of synchronous generators in terms of reactive power?

  • They always absorb reactive power
  • They have no effect on reactive power
  • They can generate or absorb reactive power depending on the excitation (correct)
  • They always supply reactive power

    • How do underground cables affect reactive power?

    <p>They generate reactive power under all operating conditions</p> Signup and view all the answers

    What is the behavior of transformers in terms of reactive power?

    <p>They always absorb reactive power</p> Signup and view all the answers

    What is the typical behavior of loads in terms of reactive power?

    <p>They always absorb reactive power</p> Signup and view all the answers

    What is the primary role of a power system?

    <p>To supply affordable, green electricity in a secure and cost-effective manner</p> Signup and view all the answers

    What is one of the key conditions for the stable operation of a power system?

    <p>Maintaining frequency and voltage within the required limits</p> Signup and view all the answers

    What is the purpose of reactive power compensation devices?

    <p>To absorb reactive power in a desired manner</p> Signup and view all the answers

    What is one of the aspects of reliability and quality of electricity supply?

    <p>Having a lack of interruptions</p> Signup and view all the answers

    What is necessary for synchronous generators to remain in operation after a fault?

    <p>To withstand disturbances and recover to a new steady state</p> Signup and view all the answers

    What is one of the key pieces of equipment in a power system?

    <p>Monitoring, Communications, Control and Protection equipment</p> Signup and view all the answers

    What is the primary role of a power system?

    <p>To enable the generation of electricity in the most suitable locations and in sufficient quantity to satisfy the customers’ demand</p> Signup and view all the answers

    What are the three main sections of a power system?

    <p>Generation, Transmission, and Distribution</p> Signup and view all the answers

    What type of energy sources is mentioned in the power system composition?

    <p>Hydro, Coal, and Nuclear</p> Signup and view all the answers

    What is the goal of a power system in terms of electric energy delivery?

    <p>To deliver reliable, good-quality electric energy at competitive prices</p> Signup and view all the answers

    What is not a main component of a power system?

    <p>Consumption</p> Signup and view all the answers

    What are the three stages of power system operation?

    <p>Generation, Transmission, and Distribution</p> Signup and view all the answers

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