In 2023, the Shanghai Metro celebrates its 30th anniversary, a miracle created from scratch, with 831 kilometers of operating network, ranking first in the world, and more than 10 million passengers shuttling through it every day, injecting vitality into the city. During the "14th Five-Year Plan" period, the scale and intensity of Shanghai's metro construction will reach a new high, achieving the goal of exceeding 1,000 kilometers.
Since Eaton entered China in 1993, from Shanghai Metro Line 1, to the first phase of Shanghai Metro Line 18 in 2018, and then to the second phase of the construction in 2023, Eaton has been in the same boat with Shanghai Metro for 30 years.
Thirty and standing
Draw a 1000-kilometer blueprint
As Shanghai Metro moves towards its 1,000-kilometer goal, Eaton Electric is also constantly developing and launching products that meet the needs of rail transit. Among them, Eaton Electric Power Xpert® DX low-voltage motor control and distribution center has been successfully applied in 26 stations of the first phase of Shanghai Metro Line 18, escorting the power distribution, power conversion, centralized control and distribution of electric energy of subway electromechanical equipment, and has been highly recognized by customers for its high standard product quality, safe and reliable operation, and intelligent and convenient operation experience.
In May this year, the second phase of Shanghai Metro Line 18 ushered in new progress, and Eaton Electric Power Xpert® DX low-voltage motor control and distribution center continued to escort 9 stations of the second phase of Line 18, helping to upgrade the east-west capacity of the northern area of Shanghai's main urban area.
Reliable quality
Increase the safety of subway operation
The ultra-large-scale network of Shanghai Metro not only brings a convenient riding experience to passengers, but also poses great challenges to operational safety and power distribution systems. Eaton Electric's Power Xpert® DX low-voltage motor control and distribution center is highly adapted to the multi-system application of the rail transit industry in terms of product performance, environmental adaptability, convenient operation and intelligent management, and fully guarantees the safe and stable operation of Shanghai Metro Line 18.
01 Outstanding performance makes a big difference
The Power Xpert® DX meets the requirements of IEC/GB standards, is type-tested and certified for a full range of up to 6300A, is rated for short-time withstand currents up to 100kA/s on the main bus, and uses Eaton's high-quality switches and distribution components to ensure high performance and reliability of the power distribution system in the metro station.
At the same time, the Power Xpert® DX insulates or separates the busbar and accessible conductors to avoid arcing faults. Autonomous mechanical interlocking of drawers, optional ARMS™ arc reduction maintenance system, and Form3b/4b interior separation provide a higher level of safety for operators and systems.
02 Complex environment is not afraid of tests
In the subway system environment, the vibration, humidity, dust, corrosive gas, etc. brought by the operation of the vehicle make the equipment application environment more severe. The Power Xpert® DX seismic rating meets the requirements of AG2-AG5 of IEC60068-3-3, and can withstand earthquakes with a seismic intensity of more than 7 on the Richter scale and a seismic intensity of more than 9 degrees, and can easily cope with the vibration impact generated by locomotive operation in the station.
In terms of external protection, Power Xpert® DX is also excellent, from IP42 to IP54 can be customized with different levels of protection, and it performs well in dust, foreign intrusion, moisture, salt spray, etc., fully meeting the durable needs of the harsh environment in the subway station.
03 Intelligent management and convenient operation
Shanghai Metro Line 18 runs an unattended, fully autonomous train, and traditional inspections are difficult to meet the needs of daily operation and maintenance. Power Xpert® DX is equipped with motor protectors, multi-functional smart meters, power quality monitoring equipment, etc., and with intelligent frame circuit breakers and molded case circuit breakers, it can send the operation data and power parameters of each distribution circuit to the central control room, and execute the coded control instructions sent by the central control room to achieve long-term, safe and stable operation goals.
At the same time, the Power Xpert® DX adopts a modular design, which is easy to install and maintain. There is a space for busbar and cabinet at the top to facilitate system expansion; Scissor plug-in design, maintenance-free; The cable connection mode meets the upper, lower and side inlet and outlet lines, and the functional unit is located in front of the cabinet, which makes the front-end maintenance simpler; What's more, all data and control can be completed on the HMI interactive interface, and the convenient operation mode makes the metro system operation and maintenance personnel more handy.
Thirty years later, Shanghai Metro is accelerating a new round of construction and striding towards a new journey of 1,000 kilometers of development with higher quality. Eaton Electric is willing to do its part, uphold the concept of sustainable development, continue to innovate, help the rapid development of Shanghai rail transit, and accelerate the development of urban public transportation with a safer, faster, more comfortable and low-carbon travel experience.
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