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Huawei Certified Field Specialist -Smart PV Controller Sample Questions:

1. MPPT - The working principle of maximum power point tracking is that the microprocessor periodically adjusts the duty ratio D of the PWM periodically to change the output current of the solar cell during a specified period, thereby causing the output voltage of the solar cell to change. The solar cell output voltage and output current are calculated, and the output power of the solar cell array is calculated, and then the position of the maximum power point is found according to the maximum power point tracking strategy.

A) True
B) False

2. Multimode fiber is generally used for long distance (10-20KM) transmission.

A) True
B) False

3. In the DC 1000V PV system application scenario, the output voltage range of Huawei PID module is ().

A) 50-500V DC
B) 0-550V DC
C) 0-800V DC
D) 50-800V DC

4. The protection level of Huawei SUN2000 inverters are IP55, and can be used indoors and outdoors.

A) True
B) False

5. The hardware equipment included in the fiber ring network transmission system has () (Multiple choice)

A) Forward isolation device
B) Optical module
C) Fiber switch
D) Fiber optic terminal box

Solutions:

Question # 1 Answer: A

Question # 2 Answer: B

Question # 3 Answer: A

Question # 4 Answer: B

Question # 5 Answer: B,C,D