Se rendre au contenu
Accueil └Photovoltaic Systems └Chapter 4 - Quiz

Photovoltaic Systems

0 %

Achevé

Contenu du cours

Chapter 4 - Quiz

10 XP
Préc Suivant
Plein écran Partager
Évaluation
0 0

Il n'y a aucun commentaire pour le moment.

Rejoindre ce cours
pour être le premier à laisser un commentaire.

1. Why is it important to analyze the site when designing a PV system?
To select the cheapest solar panels To assess the total cost of the project To identify possible obstacles that could cause shading To calculate the amount of batteries needed
2. What is the main purpose of the energy needs assessment?
Calculate payback time Design a scalable system adapted to future demand Choose the brand of the panels Determine the color of the cables
3. The peak power required of the solar panels (Pc) is calculated with the formula Pc = Wj / (Ir × k). What does "k" represent in this formula?
Battery capacity The overall loss factor System voltage The number of signs
4. If a panel has a no-load voltage (Vco) of 49.3V and the solar field voltage is 250V, how many panels should be connected in series (Ns)?
3 panels 4 panels 5 panels 6 panels
5. For an installation of more than 2 kW, what system voltage is generally recommended to reduce line losses?
12 V 24 V 48 V 220 V
6. The total capacity of the battery bank (Ct) is calculated with the formula Ct = (Wj × A) / (Vs × DoD × r). What does "DoD" represent?
Duration of Discharge Degree of Discharge Depth of Discharge Discharge Flow
7. When sizing an inverter, why should we consider a rated power higher than the continuous power of the devices?
To compensate for days without sunlight To take into account a safety factor (120-130%) and losses To power more devices in the future To reduce energy consumption
8. What voltage drop is generally considered acceptable in the cables of a photovoltaic installation?
0.5 - 2% 1 - 25% 2 - 3% 10 - 20%
9. When conducting the feasibility study with GAISMA, what irradiance value is recommended to be used for the design calculations?
The annual average value The value of the sunniest month The value of the least sunny month The value of the longest day
10. The coefficient of simultaneity makes it possible to:
Calculate the Yield of the Panels Reduce the total power to be installed to better match the actual consumption Determine the capacity of the batteries Choose the voltage of the system
11. What is the following factor that is NOT included in the calculation of the overall loss factor (k)?
Soiling losses Losses due to the Joule effect Price per kWh on the network Temperature losses
12. The last general step of the design process presented is:
Economic evaluation The choice of equipment The daily energy balance Sizing of conductors