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Huawei H20-681-ENU Exam Syllabus Topics:

Huawei Certified Field Specialist -Smart PV Controller Sample Questions:

1. In the case of fiber-optic networking, the fiber head can be washed directly with water when it is dirty.

A) True
B) False

2. The PID effect refers to the phenomenon of ion migration caused by the high voltage of the photovoltaic module between the cell and its grounded metal frame, which causes the performance degradation of the component.

A) True
B) False

3. Which of the following communication methods are supported by Huawei SUN2000L household inverter? (Multiple choice)

A) RS485
B) Wifi
C) 4G
D) PLC

4. The three-phase power line of Huawei's PID module can be directly connected to the low-voltage side busbar of the box, or it can be connected to the output of the isolation transformer built into the box.

A) True
B) False

5. Huawei SUN2000L Household Inverter Alarm ID: 2062 (low insulation resistance), the possible reason is?

A) Output L short circuit to PE
B) Photovoltaic string short circuit to PE
C) Output N short circuit to PE
D) Inverter protection ground wiring is not reliable

Solutions: