Reason analysis of increasing demand for intelligent box transformer

Intelligent box transformer is energy-saving and environment-friendly, which can eliminate a large number of potential safety hazards. It has incomparable advantages over traditional substations, conforms to the national industrial development policy, and has good social and economic benefits.

1、 The maintenance cost of relevant equipment of intelligent box transformer is greatly reduced:

With the wide application of new technologies and processes in power equipment manufacturing, the quality and performance of power equipment have been greatly improved. Some equipment has reached the maintenance free level within the design service life. If the regular maintenance management mode is still used, it is obviously not in line with the progress of the times. The intelligent box transformer can realize the intelligent condition based maintenance of primary and secondary equipment, and can carry out equipment maintenance in an optimized way, so that the equipment can be repaired less and maintenance free, so as to reduce the workload and maintenance cost of equipment inspection. At the same time, remote calibration is adopted to reduce long-distance personnel running in the process of equipment maintenance and reduce the impact of human factors on the equipment. Reduce the risk of misoperation of traditional on-site maintenance. At the same time, the equipment can be monitored. In case of any abnormality, it can be handled in time to ensure the safety of the equipment, improve the service life of the equipment and have high economic benefits.

2、 The intelligent box transformer greatly improves the reliability and stability of power supply:

Real time detection is carried out by using electronic transformer with new technology. It has the advantages of high measurement accuracy, large dynamic range and strong anti-interference ability. The intelligent box transformer can accurately locate the fault, find the fault point in time, narrow the scope of the accident, reduce the power failure time of users, and improve the safety and reliability of power supply.

3、 The intelligent box transformer is highly intelligent and easy to operate:

The intelligent box transformer meets the needs of unattended and dispatching automation, and adopts microcomputer protection and integrated automation system to realize the "4 remote" (telemetry, remote signaling, remote control and remote regulation) functions. Each intelligent control unit has independent functions to ensure the safety of relay protection function, remote setting and real-time monitoring of operation parameters, automatic control of humidity and temperature in the box and remote smoke alarm; During operation, the capacitor can be switched automatically according to the given voltage and reactive power relationship, and the voltage tap can be adjusted for voltage and reactive power regulation.

4、 Smaller volume and small floor area, meeting the national requirements for land conservation:

There are clear requirements for substation construction in the design guidelines for substation construction of State Grid Corporation of China; In the civil engineering part, the design shall be optimized to reduce land occupation and project investment; In the first mock exam, the standard of building and the number of modules should be arranged in the building part to improve the standardization level of substation building design, and to study and popularize the application of precast assembly building. Since its introduction into China, box type substation has been widely used in China with the advantages of small floor area, high degree of Engineering prefabrication and small investment. At present, the design of intelligent box type substation should be optimized and improved on this basis, and the modularization and standardization of box type substation should be deeply studied.

With the worldwide promotion of market-oriented reform, the development of digital economy, the intensification of climate change, the increasingly strict requirements of environmental supervision and the adjustment of energy policies in various countries, the relationship between power grid, power market and customers is becoming closer and closer, and customers' requirements for power quality are further improved. The traditional power network has been difficult to meet these development requirements. Therefore, countries put forward the idea of developing smart grid from a strategic height in order to realize the upgrading of traditional power grid. China has started the construction and planning of smart grid. Intelligent box transformer based on intelligent substation and box transformer technology has ushered in the spring of rapid development.

To sum up, with the rapid development of electronic technology, computer technology and network technology, intelligent box substation will be more and more widely used because of its high safety, improving power quality, reducing the burden of operators and meeting the requirements of distribution network automation system.