Grid Connected PV Systems (GCPV) Final Exam Module Data: 9.28A 38.3V 8.77A 30.8V 270W 20A Isc...

 

   

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Grid Connected PV Systems (GCPV) Final Exam Module Data: 9.28A 38.3V 8.77A 30.8V 270W 20A Isc Voc IMP VMP PMAX Max series fuse rating Voc temperature coefficient Minimum expected cell temperature -5°C The array is a rooftop array and the inverter is located on the east wall of the house. -0.34%/°C Note that the inverter is non-separated, and the array is not functionally earthed. Based on the module data and system diagram provided, answer the following questions: Does this system require string overcurrent protection? Yes No Taking into account what you put in the question above, determine the rating for the string cable fuse protection. Calculate to two decimal places. What is the minimum fuse rating? What is the maximum fuse rating? Where: In is the current rating of the nearest downstream overcurrent protection device and, number of strings is the total number of parallel connected strings protected by the nearest overcurrent protection device What should the current carrying capacity of the string cables be? Higher than I + (1.25 x Iscmod) x (number of strings - 1) Higher than the overcurrent protection rating Lower than the overcurrent protection rating Lower than In + (1.25 x Iscmod) x (number of strings - 1) In which of the following locations would you install the string overcurrent protection? On the array cable, next to the inverter In the middle of each string On the positive conductor only, in the combiner box On the positive and negative conductors, in the combiner box Nowhere since it's not required Calculate the current carrying capacity for the array cable. Calculate to one decimal place. Answer A In which of the following locations would you install the PV array DC isolator? One isolator on the roof adjacent to the array, and another adjacent to the inverter On the roof, next to the array Close to the midpoint of the cable between the array and inverter Next to the inverter Next to the switchboard Grid Connected PV Systems (GCPV) Final Exam Module Data: 9.28A 38.3V 8.77A 30.8V 270W 20A Isc Voc IMP VMP PMAX Max series fuse rating Voc temperature coefficient Minimum expected cell temperature -5°C The array is a rooftop array and the inverter is located on the east wall of the house. -0.34%/°C Note that the inverter is non-separated, and the array is not functionally earthed. Based on the module data and system diagram provided, answer the following questions: Does this system require string overcurrent protection? Yes No Taking into account what you put in the question above, determine the rating for the string cable fuse protection. Calculate to two decimal places. What is the minimum fuse rating? What is the maximum fuse rating? Where: In is the current rating of the nearest downstream overcurrent protection device and, number of strings is the total number of parallel connected strings protected by the nearest overcurrent protection device What should the current carrying capacity of the string cables be? Higher than I + (1.25 x Iscmod) x (number of strings - 1) Higher than the overcurrent protection rating Lower than the overcurrent protection rating Lower than In + (1.25 x Iscmod) x (number of strings - 1) In which of the following locations would you install the string overcurrent protection? On the array cable, next to the inverter In the middle of each string On the positive conductor only, in the combiner box On the positive and negative conductors, in the combiner box Nowhere since it's not required Calculate the current carrying capacity for the array cable. Calculate to one decimal place. Answer A In which of the following locations would you install the PV array DC isolator? One isolator on the roof adjacent to the array, and another adjacent to the inverter On the roof, next to the array Close to the midpoint of the cable between the array and inverter Next to the inverter Next to the switchboard

Answer rating: 100% (QA)

Based on the provided data and system configuration lets address each question Does this system requ... View the full answer