Online Access Free H20-681-ENU Practice Test

When the Huawei SUN2000 inverter is installed, the DC and AC voltages are normal but cannot be connected to the grid. The alarm indicator is off. The following statement which is correct? (Multiple selection)

• A.Log in to the inverter through SUN2000APP to check whether the AC and DC running data is normal.
• B.The alarm indicator is off, indicating that the inverter is not faulty.
• C.Check if the grid standard code parameter setting is correct
• D.Export the log and request technical support from the manufacturer.

Which of the following description of the characteristics of Huawei's intelligent photovoltaic power station monitoring system is correct? (Multiple choice)

• A.Operation and maintenance centralized, remote unmanned
• B.Management model in clusters
• C.Two tickets electronic, mobile, invoicing and closed loop easy to handle, easy to record, standardized operation to ensure safety
• D.Station level operation and maintenance management

Which of the following description about the operation of the software are correct? (Multiple choice)

• A.Before performing important software operation tasks, you need to submit a software operation application and get approval of the customer and Huawei service manager.
• B.Whenever the equipment/system is found to be operating abnormally, it is necessary to communicate with the equipment supplier or relevant responsible person in time to detect or prevent the failure as soon as possible.
• C.After the on-site operation is completed, the customer site logbook must be updated in a timely manner.
• D.Develop a system fallback mechanism. If unexpected results are produced, start the system fallback mechanism as soon as possible, end the work, and re-enact the implementation plan.

Regarding the shutdown operation of Huawei SUN2000 inverter, which of the following description is correct? (Multiple choice)

• A.Issue the shutdown command through the LCD monitor panel of the inverter
• B.Issue the shutdown command through the network management
• C.Issue a shutdown command through the mobile phone APP
• D.Set the inverter " DC SWITCH " directly to " OFF "

NetEco1000S supports web client and mobile APP client. When the network supports, you can log in to the NetEco1000S system to monitor the running status of the power station anytime and anywhere.

• A.False
• B.True