Application of multi loop instrument in base station "switching to direct"

Encore Hua Nan

 

introduction

With 5G The rapid development of base stations , The energy consumption of base stations is also becoming more and more prominent , Reasonable and reliable base station distribution system scheme , It is to improve the energy consumption and efficiency of the base station , An important guarantee for energy saving and consumption reduction of base stations , The premise of this scheme is to monitor the power load of each distribution circuit through multi loop instruments . In addition, in terms of base stations , Whether it's a macro base station with significantly improved equipment power , Or a large number of small and micro base stations , Low voltage distribution system is required for power supply .

1、 Industry policy

In recent days, , To reduce the operating costs of digital infrastructure , All localities aim at “ Transfer to straight ” Relevant policies have been introduced , That is to establish a communication base station and install a green channel by telegram , Support qualified 5G Base station switching to direct power supply and participation Direct electricity trading . Because the power supply mode of the early base station is Transfer power supply , That is, through the district power supply equipment （ Customer property equipment ） Power the base station , And the property will charge for the power consumption of the base station , In this way, there are not only hidden dangers of electricity safety , It also causes an increase in the cost of electricity . So for “ Transfer to straight ” It is urgent to transform .

2、 Product introduction

For the base station “ Transfer to straight ” The reconstruction of , Based on its power supply mode, we can roughly divide it into 2 In terms of ： AC and DC . The transformation solution will also be introduced in two parts .

The following is the topology diagram of energy consumption and distribution of common base stations ：

 

For monitoring points A The situation can be divided into AC single loop monitoring and AC multi loop monitoring , Corresponding to the following scenarios 1 And scene 2.

For monitoring points B The situation can be divided into DC multi loop monitoring , Corresponding to the following scenarios 3. 

1、 Application scenario 1 ： One way AC three-phase or three-way single-phase metering

                       

Product picture ：

Configuration scheme ：

2、 Application scenario II ： Multi channel AC three-phase and single-phase metering

 

Guide rail type Product picture ：

 

Configuration scheme ：

 

Application, for example, —— The field application example of a base station is as follows ：

The embedded Product picture ：

 

Configuration scheme ：

 

3、 Application scenario 3 ： DC multi loop monitoring

-48V Electrical diagram

 

Product picture ：

 

Configuration scheme ：

 

Application, for example, —— The field application example of a base station is as follows ：

         

3、 Conclusion

Through to 5G Sub stations such as macro base station and small base station are installed and delivered / DC intelligent monitoring equipment , We can strive to support the qualified base stations to change from switching power supply to direct power supply , It not only eliminates security risks for the base station , It also improves the reliability of electricity , Reasonably reduce the movement 、 The operating power cost of China Unicom and iron tower company .