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Dual power switch ATS According to different switch types, it can be divided into ____________ .
There are three different classifications of grounding forms in low-voltage power distribution systems, ____________ . The second capital letter represents ____________ .
The condensate of the air conditioner is formed by condensation after the air warning surface cooler cools down.
In the access control system interface, the functions that can be realized are ____________ .
STS The static transfer switch can switch between different input power sources and provide dual power supply for single power loads.
The fire fighting system of the computer room is mainly composed of ____________ system.
One ups The capacity is 200KVA, Its output power factor is 0.9, Then it can drive at most ____________ load.
The principle of the evaporator is to convert the refrigerant from liquid to gas, take away the heat of the refrigerated object, and realize refrigeration.
____________ The main function is electric energy distribution, which distributes the front-end electric energy to various types of electrical equipment according to requirements, standards and
specifications, such as ups, Air conditioning, lighting system, etc.
CLF Defined as the power consumption of data center cooling equipment and IT The ratio of the power consumption of the device.
The user can use the ____________ function to assign personnel to handle the fault.
Huawei chilled water air conditioners rely on ____________ to adjust the water flow.
The fastest transmission rate of the following communication interfaces is ____________ .
PLE Defined as the power consumption of the data center power supply and distribution system and IT The ratio of the power consumption of the device.
MCB Circuit breakers can be divided into ____________ and (magnetic trip) according to the principle of tripping.
The administrator cannot segment the login time and login of other users through the Huawei monitoring system IP Address restrictions.
If ups The capacity is 20KVA, Then in normal work,ups The front-end input capacity may be ____________ .
When the AC power equipment is introduced in the three-phase four-wire system, in addition to the grounding of the near end of the power transformer, the near end of the electrical equipment and the equipment room should be grounded repeatedly on the neutral line.
Huawei Monitoring System NetEco Support through ____________, send alarm information to customers.
TESTED 21 Nov 2024