Power Trading

What is the primary function of a transformer in a power system?

• Convert AC to DC

• 
  Step up or step down the voltage

• Regulate the frequency of the power system

• Measure electrical energy consumption

Which of the following is the standard frequency for AC power systems in Europe?

• 40 Hz

• 50 Hz

• 60 Hz

• 70 Hz

Which of the following activities is typically involved in the generation stage of the power value chain?

• Customer billing

• Power plant operation

• Electricity distribution

• Energy trading

What is the main advantage of High-Voltage Direct Current (HVDC) transmission over AC transmission?

• Lower construction costs

• Easier voltage transformation

• Reduced power losses over long distances

• Simpler integration with renewable energy sources

Which component is primarily responsible for maintaining the frequency of a power grid?

• Transformer

• Synchronous generator

• Circuit breaker

• Transmission line

In the power value chain, what is the primary role of the transmission stage?

• Generating electricity

• Converting electricity to usable forms

• Delivering electricity over long distances

• Managing customer accounts

Which type of power plant is typically used for base load power generation due to its constant output?

• Solar power plant

• Wind farm

• Nuclear power plant

• Diesel generator

The term "blackout" in a power system refers to

• A scheduled maintenance shutdown

• A total loss of power supply in a particular area

• A short-term voltage drop in the system

• A deliberate disconnection of certain loads to prevent overloading

Which of the following is a primary goal of energy market liberalization in Europe?

• Encouraging competition among energy suppliers

• Increasing government control over energy prices

• Reducing the number of energy providers

• Nationalizing the energy industry

What is a common challenge associated with energy market liberalization?

• Improved customer service

• Lower energy prices

• Increased government revenue from energy taxes

• Ensuring energy supply security