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Huawei HCS-Pre-sales-Digital Power V1.0 Sample Questions:

1. The high input power factor of the UPS indicates that the UPS has a strong ability to effectively utilize the power grid and a weak ability to interfere with the power grid. The input power factor of UPS2000-A-(1K-3K) is ( ).

A) F0.9
B) 0.95
C) 0.85
D) 0.99

2. What is true about the circuit breaker statement:

A) The leakage protection circuit breaker is not recommended to be used in the front end of the UPS system
B) The circuit breaker mainly plays the dual role of isolation and protection in the system
C) When selecting circuit breakers, do not consider redundancy
D) The isolating switch and the circuit breaker play the same role in the system

3. The power supply architecture supported by the new room-level air-cooled series is ( )

A) AB are both right
B) Dual power supply
C) Single power supply
D) Other.

4. Which of the following statements about micromodules is true? (multiple choice)

A) ECC800 can provide SNMP northbound interface for free
B) ECC800 can connect no more than 4 cameras
C) ECC800 can access no more than 4 external gates
D) ECC800 can be connected to the CIM
E) ECC800 can be customized to access third-party equipment

5. Huawei 25KW half-cabinet inverter air-cooled air conditioner, the following description is correct (multiple choice)

A) If a group of air conditioners is connected to a set of UPS systems, then it is necessary to multiply the number of air conditioners running at the same time on the basis of a single UPS, such as 5+1 cold backup configuration, then it needs to be based on the capacity requirement of a single air conditioner UPS Multiply by 5 to get total UPS capacity requirement, configure
B) The capacity algorithm for a single air conditioner with UPS is 1.2* 1.732*full load current*380*0.8/0.9
C) The UPS capacity requirement of a single air conditioner is 79.0kVA. If you configure UPS5000E, you need to configure at least two 40kVA power modules
D) The capacity algorithm for a single air conditioner with UPS is 1.2*5* 1.732*full load current*380*0.8/0.9
E) The UPS capacity requirement of a single air conditioner is 15.8kVA. If you configure UPS5000E, you need to configure at least one 25kVA power module

Solutions: