aaa battery.Solution for UPS power supply system in computer room

　　Solution for UPS power supply system in computer room. Whether it is a computer room or a base station, everyone will equip their equipment with one or more sets of UPS power supplies during construction, which are mainly used to provide uninterrupted power supply to computers, computer network systems or other power electronic equipment. The editor will introduce to you the solution of UPS power supply system in the computer room.

　　The choice of UPS power supply solution for the computer room is based on the equipment required in the computer room. For example, if it is equipped with monitoring, servers, switches, etc., it is a capacitive load. When purchasing UPS power supply, choose a high-frequency machine; if it is a printing press, automation equipment, automatic Access control systems, etc. are inductive loads and require power frequency UPS power supply. Choose the appropriate UPS according to the size of the load. The load is generally 0.6-0.7 of the UPS capacity. The backup time is configured according to the needs of the customer!

　　Solution for UPS power supply system in computer room

　　1. Requirements for UPS power supply front-end power supply system

　　The UPS power supply can provide high-quality power with high voltage stability, stable frequency, and small waveform distortion to the load, and can achieve uninterrupted power supply when switching with static bypass. But to do this, the quality of its front-end power supply cannot be ignored. When we design the front-end power supply system of the communication room, we should consider the following aspects:

　　(1) The power quality of the front-end power supply system should not be too poor, and the voltage and frequency should be stable within the normal range.

　　(2) The front-stage power supply system should not have other frequently started loads, such as frequently used elevators, frequently turned on air conditioners, etc.

　　(3) The capacity of the alternating current generator set in the front-stage power supply system should be appropriately enlarged.

　　2. Determination of UPS power capacity

　　According to the load capacity and nature, selecting the appropriate UPS power supply can not only ensure the power supply quality of the UPS power supply, reduce the failure rate, but also save investment and improve economic benefits. Generally speaking, the determination of UPS power capacity is mainly to meet the needs of the current load. At the same time, several factors must also be considered:

　　(1) The impact of load properties on the output power of UPS power supply.

　　(2) The UPS power supply capacity should not be too large compared to the load, causing it to operate at excessive light load.

　　(3) The UPS power supply capacity should not be too small to keep it in heavy load operation for a long time.

　　(4) For situations where the communication computer room has a large area and the load continues to expand in stages, when configuring the UPS capacity in the early stage, the mid- and long-term development trends should be properly considered, and models that can be operated in parallel or with multiple machines should be selected during the selection. When the medium and long-term load capacity is increased, the output capacity of the UPS is expanded through parallel operation. Correspondingly, when configuring the UPS input and output power distribution panel, the input switches of multiple UPSs and medium- and long-term load shunt switches should be reserved to facilitate future expansion.

　　3. Electrical isolation and grounding of power supply system

　　Generally speaking, differential mode noise and common mode noise often exist in the power grid, and these noises interfere with the normal operation of computers to varying degrees. In addition, the offset of the zero line potential will also affect the operation of the computer, so when considering the UPS power supply solution, measures should be taken to reduce these effects. For important loads such as large computer networks, the power supply system should try to use UPS power supplies with power frequency isolation transformers.

　　4. Correctly configure the UPS power backup battery

　　In order to ensure that the UPS power supply can continue to supply power to the computer when the power grid is outage, the configuration of the backup battery is important.

　　The battery capacity selection should follow the following: that is, the battery must supply power to the inverter during the backup time, and under rated load, the battery pack voltage should not drop below the lower voltage allowed by the inverter. When arranging the equipment in the computer room, try to keep the battery pack as close as possible to the UPS host, shorten the length of the connection between the two, and increase the cross-sectional area of the connection to reduce the self-inductance of the connection and the voltage drop of the line. The battery pack can be installed in a battery cabinet or in an open battery rack. The former is more beautiful. It is tidy, but has higher load-bearing requirements for the floor. The latter can disperse the load-bearing and has good heat dissipation, but it occupies a large area and is easy to accumulate dust, which brings inconvenience to maintenance.

　　5. Increase power supply through redundancy

　　In order to improve the UPS power supply, a variety of UPS power redundant connection methods can be used. Each method has its advantages and disadvantages. When considering the solution, choose the appropriate mode according to the actual load situation.

　　6. The power supply system should be intelligent

　　In order to ensure that the power supply system can operate uninterrupted for a long time, the UPS power supply is intelligent, automatically detects the status of the running UPS, and detects UPS faults in a timely manner. Diagnose and process, and reduce interruptions caused by faults or maintenance. At the same time, as part of the power system of the communication room, communication protocols should be provided to be included in the power centralized monitoring network.

　　In the electronic information construction work, the power supply and distribution system of the computer room is a basic facility. Modern computer rooms are constantly developing, and the requirements for computer room construction are also increasing. The power supply in the data computer room has very high requirements for its stability, and it is also required that the modern computer room can Working around the clock, this kind of computer room UPS power supply solution is a very important part of the computer room power supply system.

　　Even when the mains power is cut off or the power grid fails, it is necessary to ensure that there is power for the computer room. This requires the power supply system to have an accident security power supply that can cause the unit to black out; therefore, the computer room needs to be equipped with a UPS power supply to provide the computer room with The power supply is the guarantee for the operation of the information system.

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