Abstract
Nowadays, sensors and condition monitoring systems are expanding rapidly and becoming cheaper. This contributes to increasing developments in condition monitoring in railway transport infrastructure. A condition monitoring system that uses an online device and sensors to acquire electrical parameters from railway infrastructure has been developed and applied for fault detection and diagnosis of impedance bonds. The impedance bond condition is monitored in real-time using current and temperature sensors, providing early warning if predefined thresholds are exceeded in terms of currents, imbalance currents, and temperatures. The proposed method and the developed monitoring device have been validated in the railway laboratory to confirm its capability to detect defects. The acquired parameters from impedance bonds are used to extract thermal stresses and technical conditions of this equipment. Experimental results and appropriate data analysis are included in the article.
Highlights
Railway transport is one of the main ways to move in the world
Data associated with the currents was acquired by the condition-monitoring device, respectively, the temperatures to evaluate the thermal stresses in the contact area
The analyzed parts of the return circuit are the contacts between the impedance bond and railway tracks from the return circuit of electric traction, where the connection is performed through cables made from different materials and different cross-sections
Summary
Railway transport is one of the main ways to move in the world. An efficient transport system is a fundamental condition for wellbeing and prosperity at national and international levels. In this paper, a condition monitoring system that uses an online device and sensors for acquiring some electrical parameters from railway infrastructure is described It was developed and applied for faults detection and the diagnosis of impedance bonds. With the condition monitoring system and thermal camera, a thermal analysis of the electrical contacts between the impedance bond and railway tracks (from the return circuit of electric traction) was made. Sci. 2020, 10, x FOR PEER REVIEW consumers (locomotive and electric frame, internal consumers); An essential of the diagnosis, power supply system from electric railway signaling traction is the devices for element monitoring, remote control, and remote of impedance the power bondsupply from the return circuit, which is the subject of this research.
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