Vertiv: What Kind of UPS Can Meet the Special Needs of Rail Transit?

With the increasing demands for reliability and precision in rail transit operations, the application of UPS has expanded significantly. Vertiv showcased its Industry S UPS, emphasizing its robust design and features that enhance performance and simplify maintenance, thus providing essential support for safe rail transit operations.

As people's demands for the reliability and precision of rail transit operations continue to rise, the application of UPS has expanded to include systems such as AFC, PIS, integrated monitoring, ticket gates, and communication rooms, encompassing communication and signaling. The reliable operation of modern rail transit is almost inseparable from UPS applications.

As rail transit enters the era of intelligent operation, UPS applications face new and higher requirements. In addition to high reliability, UPS systems must provide better environmental and electrical adaptability while greatly simplifying daily use and maintenance processes.

Recently, Qin Huifeng, Senior Manager of Industrial and Commercial Solutions at Vertiv, elaborated at the "2024 Rail Transit Innovation Development Conference" on what kind of UPS products can meet the requirements for intelligent operation and maintenance in rail transit. He also shared the leading design and performance advantages of the next-generation UPS for rail transit scenarios.

He mentioned that Vertiv has been closely monitoring the development needs of rail transit and continuously innovating technologies to enhance the reliability, adaptability, and ease of operation of UPS systems, providing crucial support for the safe operation of rail transit business scenarios.

The Vertiv™ Liebert® Industry S, as the next-generation UPS system for rail transit applications, adopts a brand-new design concept that integrates Vertiv’s UPS design expertise into rail transit scenarios. This ensures that the product maintains exceptional performance metrics while adapting to various harsh physical and electrical environments.

1. How to Face the Harsh Tests of Extreme Environments? The physical installation environment for electrical equipment in rail transit scenarios is poor, facing challenges from temperature, dust, humidity, and more. The Industry S series UPS employs various design methods to tackle these challenges: it features an overall protection level of IP42, a dual independent air duct design for power modules and systems, and circuit boards coated with anti-corrosion paint, ensuring good reliability performance in the field.

2. How to Adapt to Harsh Grid Environments and Ensure Power Reliability? Due to daily operational impacts, the grid fluctuations in rail transit scenarios can be significant, and the input power quality is poor. Ensuring that UPS systems perform well under these harsh grid conditions is a major technical challenge. The Industry S addresses this by coordinating hardware and software. On the hardware side, it uses high-performance processors and next-generation control and drive circuits; on the software side, it employs dynamically adaptive core control algorithms. This greatly enhances the electrical adaptability of the system in rail transit scenarios, achieving excellent performance metrics: the overall input power factor is >0.95, input current harmonics <5%, and an ultra-wide input voltage range of -40% to +25%.

3. How to Simplify On-Site Maintenance and Accelerate Fault Recovery? The UPS system should be user-friendly for intelligent maintenance in rail transit scenarios. The Industry S features a graphical user interface design that presents the UPS's status and parameters in an intuitive manner. Notably, it includes a smart maintenance bypass that eliminates the risk of accidental power loss due to operator error.

   In the event of unavoidable occasional faults, the ability to quickly eliminate faults and resume operations is essential for next-generation UPS in rail transit scenarios. The Industry S adopts a modular design that significantly simplifies the types of spare parts required and makes spare part installation extremely simple. This allows the average time to recover from a fault (MTTR) to be reduced to under 20 minutes, facilitating quick recovery of operations after a fault.

As a supplier of information and electrical infrastructure for the rail transit industry, Vertiv provides a wide range of products and solutions, achieving comprehensive coverage of rail transit business scenarios.

Currently, Vertiv's solutions are widely applied in numerous subway cities across the country, including Qingdao, Jinan, Chengdu, Xi'an, Beijing, Tianjin, Guangzhou, and Shenzhen. Based on extensive application cases and product design experience, Vertiv continually monitors the development and transformation of the rail transit industry, constantly optimizing and enhancing its products and solutions to contribute to the growth of the rail transit sector.