Synchronized Measurement Technology in EMS

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Questions and Answers

What is the primary advantage of Synchronized Measurement Technology (SMT) over traditional SCADA systems?

  • SMT provides higher sampling frequency, capturing faster system dynamics. (correct)
  • SMT automatically takes corrective actions during faults without human intervention.
  • SMT reduces the complexity of power systems by excluding renewable energy sources.
  • SMT eliminates the need for communication networks in power systems.

What is a drawback of traditional SCADA systems?

  • They are unable to capture high-frequency oscillations in the power system.
  • They require extensive manual intervention for fault clearance.
  • They lack the ability to synchronize data acquisition across devices. (correct)
  • They are incompatible with renewable energy sources.

What is the typical data acquisition latency for traditional SCADA systems?

  • 1 to 4 seconds (correct)
  • 1 to 4 hours
  • 1 to 4 milliseconds
  • 1 to 4 minutes

Which statement best describes the impact of high renewable penetration and lower inertia on power systems?

<p>It increases the complexity of the grid and requires faster system monitoring. (B)</p> Signup and view all the answers

What is a limitation of traditional SCADA systems in terms of data communication and visualization?

<p>The data communication is slow and unreliable, and visualization takes up to a few minutes. (D)</p> Signup and view all the answers

What is the primary purpose of Synchronized Measurement Technology (SMT)?

<p>To monitor system-wide dynamics in real-time (A)</p> Signup and view all the answers

What are the main components of an SMT system?

<p>Phasor Measurement Units (PMUs), Phasor Data Concentrators (PDCs), and Communication Infrastructure (B)</p> Signup and view all the answers

What is the key advantage of PMUs over traditional SCADA systems?

<p>They provide higher measurement resolution (A)</p> Signup and view all the answers

Which of the following is NOT a potential time synchronization source for SMT systems?

<p>Power Line Communication (PLC) (A)</p> Signup and view all the answers

What is the fundamental requirement for accurate phasor estimation in SMT systems?

<p>Precise time synchronization (B)</p> Signup and view all the answers

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