Power Quality Analysis in PV Plants
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Questions and Answers

What does NOCT stand for in the context of solar panels?

  • National Organic Cell Tracking
  • New Optimal Cooling Technology
  • Normal Operating Cell Temperature (correct)
  • Nominal Output Control Technique

    • Under what conditions is NOCT testing conducted for solar panels?

  • 1000 W/m² irradiance, 25°C ambient temperature, and no wind
  • 600 W/m² irradiance, 15°C ambient temperature, and 5m/s wind speed
  • 400 W/m² irradiance, 30°C ambient temperature, and 2m/s wind speed
  • 800 W/m² irradiance, 20°C ambient temperature, and 1m/s wind speed (correct)

    • What is the capacity of the SMA-STP 60-01 inverter model used in the plant?

  • 60kWac (correct)
  • 70kWac
  • 80kWac
  • 50kWac

    • How many PV modules are used in the plant?

    <p>41800</p> Signup and view all the answers

    What does STC stand for in relation to solar panels?

    <p>Standard Testing Conditions</p> Signup and view all the answers

    What is the tilt angle at which the PV module is placed for NOCT testing?

    <p>45°</p> Signup and view all the answers

    What is the total capacity of the PV plant (Group A + Group B) mentioned in the text?

    <p>12.18 MW</p> Signup and view all the answers

    How many inverters are grouped with a total capacity of 0.96 MW in the text?

    <p>16 inverters</p> Signup and view all the answers

    What is the voltage level of Cable-TR14 mentioned in the text?

    <p>0.305 kV</p> Signup and view all the answers

    How many Cable-TR instances are mentioned in the text?

    <p>10 instances</p> Signup and view all the answers

    What is the total capacity of inverters grouped with TR-03 and TR-06?

    <p>3.84 MW</p> Signup and view all the answers

    Which Cable-TR has the longest length mentioned in the text?

    <p>Cable-TR09</p> Signup and view all the answers

    What does 'TR-02 1.5 MVA LV-07 0.4kV 0.015 km' refer to in the load flow analysis?

    <p>The power rating and voltage level of a transformer</p> Signup and view all the answers

    What is the main objective of the power quality analysis mentioned in the text?

    <p>Assess the steady-state loading and voltage profile after introducing the PV plant</p> Signup and view all the answers

    What is the significance of analyzing the power quality impact of a PV plant on the grid?

    <p>To ensure compliance with grid code requirements</p> Signup and view all the answers

    Why is it important to assess steady-state loading and voltage profile after introducing a PV plant?

    <p>To ensure that the PV plant does not affect system stability</p> Signup and view all the answers

    What does the term 'System Equivalent = 18.5kA, X/R=10' indicate in the context of power quality analysis?

    <p>An equivalent short-circuit current for system components</p> Signup and view all the answers

    What role does 'Ref voltage at 132kV busbar= 1.0 p.u.' play in power quality analysis?

    <p>Setting a reference point for voltage calculations in the system</p> Signup and view all the answers

    What is the power factor of L1 according to the provided data?

    <p>0.935</p> Signup and view all the answers

    At what power factor does L2 operate based on the information provided?

    <p>0.90</p> Signup and view all the answers

    What is the X/R ratio of the system based on the details given?

    <p>10</p> Signup and view all the answers

    What does the system rely on to maintain a voltage of 1.1 pu according to the details provided?

    <p>Reactive power support of the PV</p> Signup and view all the answers

    What is the purpose of the note 'System Analysis Summary for Reactive power assessment'?

    <p>To assess reactive power needs</p> Signup and view all the answers

    Who is credited with providing valuable information in the text?

    <p>Eng.Mustafa El-Sissi</p> Signup and view all the answers

    What is the formula to calculate the loss in the PV system discussed in the text?

    <p>12MW - (11km + 23km + 0.5km) - (120MVA + 2MVA)</p> Signup and view all the answers

    What is the average Power Factor (PF) for Load 1?

    <p>0.935</p> Signup and view all the answers

    What is the System Equivalent value mentioned in the text?

    <p>18.5kA</p> Signup and view all the answers

    Which case in the contingency analysis involves considering N-1 for one 33kV cable circuit?

    <p>Case 2</p> Signup and view all the answers

    What is the Power Factor (PF) for Load 2 as mentioned in the text?

    <p>0.90</p> Signup and view all the answers

    In the PV system, what does the term 'N-1' refer to in the context of Case 1 of the contingency analysis?

    <p>'N-1' denotes a single element outage protection strategy.</p> Signup and view all the answers

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