Abstract
The article discusses design and installation method of the EDG Electrodynamic Wagon Retarder at the railway siding of the Power Plant Rybnik. It is the first structure of its kind in Poland. Up to now mostly hydraulic brakes have been used in Poland. They were difficult to operate and hardly environmentally friendly due to contamination and noise. Electrodynamic wagon retarders are free from such defects. The issue of introducing new railroad brake construction in Poland is very important because the Polish Railway Lines (PLK) are confronted with the need of devices modernization on a humps. The German railways' experience confirms the effectiveness of this type of brake. Especially the field tests in Germany and Poland show that the electrodynamic retarders do not have a negative impact on the occupancy control system.
Highlights
At present, mostly hydraulic brakes are used in marshalling of wagons
Basic features of the Electrodynamic Retarder electrodynamic wagon retarder (EDG) – 93 are summarized below: – It can be used as a service, group or an additional brake; – It can be operated as a destination and distance brake; – It enables manual, semi-automatic, or fully automatic control; – Its installation length is of 5 m to 20 m; – The maximum height of the situate retarder beams to the lateral side of a railway wagon wheel ring is equal to 63 mm; – It can function as a retarder when installed on both rails
Software and hardware The EDG Wagon Retarder meets the requirements of railway standards [5], [6] and [7] with regard to reliability, availability, maintenance susceptibility and safety, and the software for railway traffic control systems, including electronic traffic control systems
Summary
Mostly hydraulic brakes are used in marshalling of wagons They are generally in the form of platforms, sometimes poppet brakes. Maintenance of the hydraulic brakes is difficult due to their outdated design. They constitute a threat to the environment. The threat consists in brakes utilising oil, which leaks out to the environment, and both oil-feeding system and retarder shoes generate noise, which is a nuisance to people living nearby. To eliminate the said disadvantages, the Power Plant Rybnik has erected a test installation of the electrodynamic wagon retarder system type EDG. It is the first structure of its kind in Poland. The article discusses applications and test results of electromagnetic radiation generated by the retarder, with emphasis on the requirements regarding the protection of persons working near the retarder
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