Huawei Certified Field Specialist -Smart PV Controller - H20-681-ENU Exam Practice Test
Question 1
Huawei PID module alarm ID: 1921 (grounding abnormal), the possible reason is (). (Multiple Choice)
Correct Answer: A,B,C,D
Question 2
When RS485 communication is set up, Smartlogger manages multiple inverters through one RS485 communication link, and one of the inverters is disconnected from SmartLogger. The possible reasons are (). (Multiple Choice)
Correct Answer: A,B,D
Question 3
The protection level of Huawei Smart Sub-Chip Controller SmartACU2000B is IP65, which can be installed outdoors.
Correct Answer: A
Question 4
The SmartLogger200 has a built-in Bluetooth module, which can be connected to the SmartLogger via Bluetooth for parameter setting and maintenance.
Correct Answer: A
Question 5
The 4G of the Huawei household inverter SUN2000L-5KTL-CN-4G model means that the model supports 4G communication.
Correct Answer: A
Question 6
The following documents belonging to the output document in the project supervision process are (). (Multiple Choice)
Correct Answer: A,C,D
Question 7
NetEco1000S system monitoring interface display content includes ____. (Multiple choice)
Correct Answer: A,B,C,D,E,F
Question 8
Which of the following rated voltage of the grid is supported by Huawei SUN2000 inverter is? (Multiple choice)
Correct Answer: A,C,D
Question 9
The inverter deleted by the NetEco1000S system is automatically restored again, and you can try to delete it several times.
Correct Answer: B
Question 10
On-site problem management needs to develop a project problem tracking table. The tracking table is divided into an internal problem tracking table and a customer problem tracking table. The customer problem tracking table can be recorded according to the service engineer content, and does not need to be completely consistent with the customer's maintenance, but the internal problem tracking table should be in the same state as the company support team.
Correct Answer: B
Question 11
The principle of maximum power point tracking using Boost circuit is to adjust the switching tube duty cycle so that the impedance fed back to the input side of the load is equal to the maximum power point impedance of the solar cell, also called the impedance matching principle of the maximum power output. .
Correct Answer: A
