Free H12-411 Exam Dumps Preview

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.

Leakage current protector is based on the current exceeds the specified value for a period of time, the melt is melted by its own heat, thereby breaking the circuit.

In the data center power supply and distribution system, if a power outage occurs, it is generally caused by Complete the standby switch between mains and mains or mains and diesel generators.

The following is for high frequency ups The correct description of the rectifier components is.

The monitoring system NetEco can send alarm notifications through ____________.

PUE The closer the value ____________, indicating that the energy efficiency status of the data center is good.

The role of the lead-acid battery battery is to contain electrolyte, plates, separators, etc.

During the construction process, carry out low-voltage live work ____________, should be used
____________ .

The dynamic environment monitoring system only has a secondary structure.

The throttling devices used by Huawei's air-cooled precision air conditioners are ____________ .

Huawei Monitoring System NETECO Support hierarchical network management function.

In the dynamic environment monitoring system, the user queries the alarm information of the refrigeration equipment through the ____________ function.

Huawei chilled water air conditioners rely on ____________ to adjust the water flow.

pPUE is a data center PUE An extension of the concept, used to evaluate the energy efficiency of a local area of a data center or equipment And analysis.

Exist UPS in the system, the most comprehensive description of the role of the inverter circuit is
____________ .

The following air conditioners are comfortable air conditioners ____________ .

Huawei Monitoring System NETECO The system does not support remote door opening.

UPS The inverter component can realize the conversion from AC to DC.

In the air conditioning system, the function of the oil and gas separator is to separate the lubricating oil from the compressor exhaust and return the separated lubricating oil to the compressor.

UPS systematic N+X System ratio 2N The power supply guarantee level of the system is higher.

In the main inverter mode, when the mains input voltage and frequency exceed ups When the allowable range isups Will be inverted from the main circuit. The mode shifts to static bypass mode.

The following ____________ is not the basic function of low-voltage circuit breakers.

Water cooling/The refrigerant of ethylene glycol air conditioner has been flushed before leaving the factory, so it is convenient and quick to install on site.

One ups The capacity is 200KVA, Its output power factor is 0.9, Then it can drive at most ____________ load.

The grounding type that represents the power system directly grounded and equipment protective grounding separated is ____________.

The administrator cannot segment the login time and login of other users through the Huawei monitoring
system IP Address restrictions.

The UPS system configuration that provides complete redundancy without a single point of failure is
____________.

Dual power switch ATS According to different switch types, it can be divided into ____________ .

The following are air-cooled row-level air conditioners ____________ .

The role of the safety valve in the battery structure prevents excessive internal pressure from being excessive ____________ exclude.

The function of the following ____________ components is to help return oil.

CLF Defined as the power consumption of data center cooling equipment and IT The ratio of equipment power consumption.

____________ can complete the conversion from DC to AC.

The following Does the model of air conditioner have an oil separator?

The general method of connecting lead-acid batteries is to string first and then parallel.