Huawei Certified Field Specialist -Smart PV Controller - H20-681-ENU 模擬練習
Huawei SUN2000L household inverter indicator LED1 status is "green slow flash", LED2 status is "off", which means "DC is not powered, AC is powered on".
正解: B
Which of the following about the description of Huawei SmartLogger accessing third-party devices is correct? (Multiple Choice)
正解: A,B,D
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.
正解: A
In a fiber ring network scenario, a ring network can connect up to ___ SmartLogger2000.
正解: B
In the DC 1000V PV system application scenario, the output voltage range of Huawei PID module is ().
正解: B
The devices that can be configured in the Huawei intelligent sub-array controller include (). (Multiple Choice)
正解: A,B,C,D
During the process of the project supervision, which of the following acts belong to the service engineer's on-site work responsibilities? (Multiple choice)
正解: A,C,D
eLTE wireless transmission system, the default IP address of the CPE module EG860 is ___.
正解: A
In the Huawei SmartLogger WEBUI device monitoring display interface, when the indicator light in front of the device name is displayed in blue, it indicates ____.
正解: A
The highest DC input voltage of Huawei SUN2000-33KTL is ()V and the highest DC input voltage of SUN2000-36KTL is ()V.
正解: B