Rack-mounted UPS power supply solution in integrated computer room. The quality of a computer room rack-mounted UPS power supply solution directly determines whether the important loads in the communications computer room can operate normally. When designing the UPS power supply system in the communication room, we must not only save investment, but also consider the flexibility of the system to provide protection for communication equipment and computer loads.

　　Integrated computer room UPS demand analysis

　　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 rack-mounted UPS power supply, so that Providing power supply to the computer room is the guarantee for the operation of the information system.

　　The choice of rack-mounted UPS power supply solution 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 or automation equipment , automatic access control systems, etc. are inductive loads and require power frequency UPS power supply. Choose the appropriate rack-mounted UPS power supply 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!

　　Rack-mounted UPS power supply solution in integrated computer room

　　Rack-mounted UPS can provide high-quality power to the load with high voltage stability, stable frequency, and small waveform distortion, 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.

　　According to the load capacity and nature, selecting an appropriate rack-mounted UPS power supply can not only ensure the power supply quality of the UPS, reduce the failure rate, but also save investment and improve economic benefits. Generally speaking, the determination of UPS capacity is mainly to meet the needs of the current load.

　　For situations where the communication equipment room has a large area and the load continues to expand in stages, when configuring the rack-mounted UPS power 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. In order to increase the load capacity in the medium and long term, the output capacity of the UPS can be 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.

　　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 neutral potential will also affect the operation of the computer, so when considering the rack-mounted 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 a rack-mounted UPS power supply with a power frequency isolation transformer.

　　In order to ensure that the power supply system can operate uninterrupted for a long time, the rack-mounted UPS 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.

　　Features of integrated computer room rack-mounted UPS power supply

　　Real-time monitoring function. Monitor the status of each part in the circuit and obtain relevant parameters of the host at any time.

　　Human-computer interaction function. Various critical operating point thresholds within the UPS can be reset through program modification according to actual operating conditions, and various operating parameters of the UPS power supply can also be read.

　　Trouble diagnosis function. Analyze detected abnormal parameters in a timely manner, detect signs of failure as early as possible, display their nature and location, provide processing methods, and automatically record relevant information.

　　Remote monitoring function. Provide a remote computer interface, which can communicate with remote computer terminals through a modem through an RS232 or RS485 interface.

　　Rack-mounted design, the width is standard 19-inch rack-mounted, and the height is only 1U.

　　Complete protection functions, including battery over-under voltage protection, output over-voltage protection, output under-voltage alarm, output short circuit, over-temperature and other protection functions.

　　The above is the solution for the rack-type UPS power supply in the integrated computer room. Because the rack-type UPS power supply has different driving capabilities for loads with different performance, usually the load power should meet 70% of the rated power of the UPS power supply. , Therefore, in large and more important computer rooms, the power supply is basically rack-mounted UPS.

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