H12-411_V2.0 Exam Questions

UPS5000-E (50KVA module) supports adjustable number of batteries, avoiding the replacement of the entire battery pack due to a single battery failure, and solving the problem of di...

As long as you buy the Huawei mobile APP function, you can check the operation status of the computer room at home

One of the highlights of UPS2000-G series products is high efficiency. It is the first batch of UPS in the industry to pass Energy Star certification.

The demand for government cloud computer room construction only exists in provinces and cities, and there is no opportunity in districts and counties.

The main circuit of PDU8000 precision power distribution cabinet supports voltage harmonic and current harmonic monitoring.

Configure a modular redundant UPS system. As long as the number of modules meets the basic requirements, there is no need to consider the distribution of UPS modules on different r...

The 12V battery is composed of 6 2V battery cells.

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

Data centers usually use gas fire protection systems.

R410a refrigerant will produce a greenhouse effect and damage the ozone layer.

The intelligent rPDU in FusionModule2000 version 3.0 can control the switch of each socket.

Configure the UPS cables so that the total current carrying capacity of the cables is greater than the rated current of the UPS to meet the project requirements.

The leakage current protector is based on the fact that after the current exceeds the specified value for a period of time, the heat generated by itself will melt the melt, thereby...

Huawei micromodules can seal cold channels as well as hot channels

Huawei's self- developed air conditioner has a 6KV lightning protection filter function, the highest in the industry.

NetEco management system supports remote alarm notification via SMS, email, etc., prompting users to handle alarms as soon as possible.

UPS5000-A built-in isolation transformer

Battery packs of different brands and the same capacity can be used in parallel.

When configuring batteries, you don't need to consider the brand of the batteries, as long as the capacity is the same, it can meet customer requirements.

UPS5000-E (50kVA power module) can accommodate up to 300kVA in a single rack.

DB9 is a protocol.

PLE is defined as the ratio of power consumption of the data center power supply and distribution system to that of IT equipment.

UPS5000-A 30~120kVA can support wall installation.

The UPS5000-A parallel signal line does not adopt a ring connection method, which results in a single point of failure and reduces system reliability.

UPS5000-A supports adjustable number of batteries to avoid replacement of the entire battery pack due to failure of a single battery, solving the problem of difficult maintenance o...

UPS5000-E (50kVA power module) has a single cabinet capacity of 300kVA and can support 8 racks in parallel.

The UPS5000-S power module has a capacity of 50kVA and a height of 2U, with the highest power density in the industry.

UPS5000-S has the function of adjusting the number of batteries, which avoids the replacement of the entire set due to a single battery failure and solves the problem of difficult...

Huawei air-cooled air conditioners (25kw and 42kw) have one indoor unit corresponding to one outdoor unit

Huawei monitoring system NETECO supports hierarchical network management functions. ()

Three-proof paint coating can significantly reduce the failure rate of UPS in harsh environments such as salt spray, dust, high temperature and humidity, and ensure its service lif...

The integrated UPS is equipped with a lightning protection module

During manual construction, use pushing and pulling instead of carrying as much as possible to reduce the risk of muscle sprains and strains.

The main monitoring objects of the data center computer room monitoring system include power supply system, refrigeration system, fire protection system, etc.

Data center power supply and distribution systems usually use low-voltage generator sets. When the power supply distance is long and the system load is large, high-voltage generato...

PC-level ATS has the functions of connection and load-bearing, but is not used to disconnect short- circuit current.

In the TN-C system, in order to protect the safety of equipment and lines, it is recommended to install a circuit breaker on the PEN line.

The main functions of MCB circuit breaker include short circuit protection and overload protection.

The cables of a certain project will be subjected to great tensile force during use. When the current carrying capacity of the cables just meets the line requirements, Engineer A s...

UPS can purify the AC input, output stable AC, provide uninterrupted power supply and protect the load.

When chemical reactions occur inside VRLA batteries, hydrogen and oxygen are produced and water is consumed, so VRLA batteries need to be replenished regularly.

Lithium has very active chemical properties and is very easy to burn. By managing the charging current through BMS, the internal temperature of the battery can be prevented from be...

Lead-acid batteries can be used directly under sunlight, but good ventilation is required.

During discharge, Li+ is released from the negative electrode and embedded in the positive electrode (gaining electrons).

Compared with lithium-ion batteries, lead-acid batteries have lower energy density, short cycle life and poorer safety, but the initial investment in lead-acid battery projects is...

The refrigerant undergoes phase change in the evaporator, absorbs heat, and takes away the heat of the refrigerated object to achieve refrigeration.

The air static pressure in the air conditioning system refers to the relative static pressure.

Water-cooled direct expansion air conditioners generally require the use of a mixed solution of water and ethylene glycol.

The essential difference between water-cooled direct expansion air conditioning and water-cooled chilled water air conditioning is whether a cooling tower is used.

The oil separator is generally installed between the evaporator and the compressor to facilitate the return of the lubricating oil to the compressor.