Integrated solution for network energy in communication room (picture)-EEWORLD

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The equipment in the communication room can be simply divided into two parts according to its function and service object: information conversion equipment and network energy equipment. Information conversion equipment is the main equipment in the room, providing functions such as switching, transmission, and access, while network energy equipment is the equipment that provides services and guarantees for the normal operation of the main equipment, including power distribution, DC power supply, UPS power supply, air conditioning, power and environmental monitoring equipment.

Emerson Network Power Co., Ltd. has launched an end-to-end integrated network energy solution in China. Compared with the decentralized procurement, decentralized construction and decentralized management model of various network energy equipment, the value of the integrated network energy solution is reflected in: first, since only a few multi-product suppliers are dealt with, the overall cost of customers is reduced; second, in terms of engineering construction, it solves various problems that arise in engineering coordination and cooperation among multiple product suppliers, which can greatly increase the speed of engineering construction, shorten the engineering cycle, and speed up the commissioning of the room; third, in terms of service, by unifying and reducing the customer's maintenance work interface, it is conducive to providing services to operators.

According to the distribution area, function, importance and development trend of the network, the communication bureau (station) can be divided into three categories. In addition, due to the particularity of the IDC room, it is also listed separately.

Class I bureaus (stations)

Class I bureaus (stations) are usually provincial capital cities and regional central communication integrated hubs (including international bureaus), urban telephone switching bureaus, telegraph (data) bureaus, wireless bureaus, long-distance transmission primary trunk stations, urban telephone terminal bureaus, and other specially specified communication bureaus (stations). They have the most important position in the communication network and the most complete functions, so the configuration requirements for the power room are also the highest. It requires that the unavailability of the power supply system should not exceed 5×10-7, that is, the cumulative time of each power supply system failure should not exceed 5 minutes on average within 20 years. The reliability of the power supply system is not only guaranteed by the performance and redundant configuration of the power conversion equipment itself, but also depends on the input of multiple power supplies, reliable switching mechanisms, and the reasonable design of low-voltage distribution systems.

As shown in the figure, this is a typical schematic diagram of the power supply scheme for a Class I bureau station with more than 50,000 ports. The entire power system is initially input by two mains and one oil generator (which can be expanded to two oil generators in the final stage). After the high-performance ATS automatic switching switch, one power supply is selected to be input into the low-voltage distribution cabinet. TVSS surge protection devices and reactive power compensation cabinets are installed on the low-voltage distribution busbar. Electric energy is distributed by the low-voltage distribution cabinet to the next-level AC distribution panel and other electricity such as elevators, fire protection, water pumps and lighting. The DC uninterruptible power supply and AC uninterruptible power supply for communication equipment have dedicated AC distribution cabinets. The DC power supply adopts an intelligent high-frequency switching power supply system with N+1 backup. The AC part adopts a redundant mode of two UPS 1+1 direct parallel connection. For a class of important stations, it is also recommended that the battery adopt a 1+1 backup mode. The air conditioners in the communication room and the power (battery) room should also use precision air conditioners dedicated to the room with constant temperature and humidity to provide a good environmental guarantee for the reliable operation of the equipment.

[page] Schematic diagram of power supply scheme for Class I bureau

(station) Class II bureau (station)

Class II bureau (station) is usually a prefecture-level city comprehensive bureau, a 10,000-50,000-line city telephone bureau, a long-distance transmission secondary trunk station or an equivalent communication bureau (station), etc. It is similar to Class I bureau in terms of function, and the types of equipment and supporting machine rooms required are also similar, but the scale is smaller than the former, and the importance is relatively lower. The unavailability of the power supply system of this type of bureau should not exceed 1×10-6. That is, on average within 20 years, the cumulative time of each power system failure should not exceed 10 minutes. The power supply scheme of Class II bureau (station) is basically the same as that of Class I bureau, but there will be certain differences in the capacity of the equipment according to the load demand.

Class III bureau (station)

Class III bureau is usually a county (including county-level city) comprehensive bureau, a city telephone bureau with less than 10,000 lines, a module bureau, a base station, etc. This type of station is smaller in scale and less important than the first two types. The required unavailability of the power supply system should not exceed 5×10-6, that is, the cumulative time of each power supply system failure should not exceed 50 minutes in an average of 20 years. Among the three types of computer rooms, according to the size, type and status of the main computer room, it can be further divided into two categories, namely, county-level comprehensive bureaus and the smallest stations. The county-level comprehensive bureau is relatively large in scale, with separate oil engine room, power, battery room and other supporting computer rooms, and the network energy configuration plan is also relatively complete.

IDC computer room

IDC computer room is different from general communication computer room. It is mainly AC load, has a complete computer room and supporting rooms, and the power supply system is also very important. Its power supply reliability is the highest among several types of stations. The power supply unavailability should not exceed 1×10-7, that is, the cumulative time of each power supply system failure should not exceed 1 minute in an average of 20 years.

Reference address：Integrated solution for network energy in communication room (picture)

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