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Huawei Certified Field Specialist -Smart PV Controller Sample Questions:

1. The photovoltaic sub-array adopts the Huawei PLC communication network. The reason why the Huawei PLC CCO module and the SUN2000 inverter fail to network during communication debugging? (Multiple choice)

A) The inverter is not powered
B) PLC CCO module is not connected to AC power line
C) PLC CCO module is not powered
D) PLC CCO module RS485 communication parameter setting is wrong.

2. When the PV sub-array adopts Huawei PLC communication networking, the knife-melting switch needs to be added between the box-changing busbar and the Huawei PL CCO module. The rated current of the fuse cannot be less than ____.

A) 10
B) 5
C) 15
D) 6

3. When the Huawei intelligent sub-array controller SmartACU2000B is powered on, which of the description is wrong?

A) First close the three-phase power switch that is connected to the intelligent sub-array controller in the remote box.
B) Power-on checked before and the cabinet is reliably grounded.
C) After the power supply switch of the pre-stage box is closed, the input voltage of all switches in the intelligent sub-array controller must be measured with a multimeter.
D) All front-end switches and all cabinet switches in the intelligent sub-array controller are disconnected before power-on.

4. In the PLC communication networking scenario, the three-phase power cable of the Huawei PLC CCO module can be connected to the output of the built-in isolation transformer of the box.

A) True
B) False

5. Regarding the SUN2000 inverter software update, which of the following statement is correct?

A) SUN2000 inverter software needs to be updated regularly
B) SUN2000 inverter software has no requirements for the scene and can be used universally.
C) Can be remotely updated via SUN2000 APP Proximity or Smartlogger
D) Will not affect power generation during the update process

Solutions: