Under the same load conditions,ups The backup time is mainly determined by the battery capacity and the number of battery cells. The larger the battery capacity, the longer the backup time.
During the construction process, carry out low-voltage live work ____________, should be used ____________ .
During the implementation process, corrosive operations should be used ____________ .
TN-S The three-phase unbalanced current in the low-voltage power distribution system makes the protection line PS Generate voltage to ground.
The condensate of the air conditioner is formed by condensation after the air warning surface cooler cools down.
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.
In Huawei's dynamic environment monitoring system, it is at the data collection layer and can integrate the underlying components ____________ . The equipment through which information is transmitted to the monitoring software is ____________ .
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 device cannot be connected to the southbound interface of the dynamic environment monitoring system.
Use POE When interface, it has two functions of communication and power supply.
In the low-voltage power distribution system,N The role of the wire is to return the AC operating current.
According to the storage methods of different electrolytes in batteries, it can be divided into ____________ with ____________ .
The function of Huawei's chilled water air conditioner plug-in frame power supply is to provide a stable power supply for the fans.
Huawei Monitoring System NETECO Support hierarchical network management function.
Huawei Monitoring System NETECO The northbound interface can be accessed ____________ .
According to different classifications of electrolytes, batteries can be divided into ____________ and ____________ .
At the end of the discharge of lead-acid batteries, the voltage drops, and the positive and negative active materials are converted into ____________ .
The surface cooler controls the indoor temperature and humidity through the heat exchange between the refrigerant and the indoor air.
The dynamic environment monitoring system supports the alarm management function.
In the main road mode, when ups The front-end voltage is at 220V±10%When fluctuating,ups The output voltage will also have Larger fluctuations.