Light rail systems can play a central and dramatic role in ensuring efficient, powerful, and eco-friendly transit options in urban transportation landscapes. A vital component of light rail systems is the Traction Power Substation (TPSS), which converts AC power into the DC power required to operate light rail vehicles. Monitoring and testing TPSS substations are essential for maintaining optimal performance and reliability.
TPSSs are integral to the electrification of light rail systems. They provide the necessary power for train operations and make monitoring and analyzing their performance vital. Key system management focus areas include interactions between load performance, train operation, fault conditions, power load demands, and energy consumption. Operators must continuously understand, manage, and optimize these dynamics to ensure efficient and uninterrupted service.
AstroNova, a leader in data acquisition and recording for 55 years, recommends an innovative system of components to monitor and test TPSS performance effectively:
- AstroNova TMX Data Acquisition System: This system features isolated voltage inputs for accurate data capture.
- Voltage Transformers: Essential for measuring voltage levels within the system.
- Clamp-on Current Transformers: Used to measure current without intrusive methods.
The AstroNova TMX system acquires data from 18 channels, including current and voltage measurements for each of the three power phases to the TPSS. It also monitors voltage and current for the negative cubicle DC main breakers and DC feeders. Installing TMX systems at multiple substations allows data from various locations to be compared and analyzed together, providing a comprehensive view of the entire network.
The versatility of the TMX system delivers reliability and thoroughness to operators, capturing data continuously over extended periods or when specific conditions are met. For example, the system can record data when the current in the negative cubicle exceeds 100 Amps. This capability enables operators to assess TPSS performance under varying load conditions, such as when a train passes a station.
After completing a test, operators can quickly review the data on the TMX’s built-in display, allowing them to focus on specific points of interest. Identified data can then be exported to Excel or other data analysis software for further examination and reporting.
The AstroNova TMX Data Acquisition System is designed with a rugged build, ensuring its durability and reliability in various operating conditions. With its high voltage input capability and versatile functionality, the TMX system is ideal for operators to ensure light rail systems’ efficient and reliable performance, ultimately enhancing urban transportation networks.
