[Numberless Heading] Abstract[Normal] Manuscript preparation for CETRA 2014 proceedings is a fairly simplified process. Everything you need for a properly formatted article is contained in this template document which uses a feature of Microsoft Word called Styles. A style is a set of formatting characteristics that you can apply to text in your document to quickly change its appearance. When you apply a style, you apply a whole group of formats in one simple step. For example, you may want to format the sections headers to make them stand out. Instead of changing the headings one by one, you can give them a style and change them all at once. All the styles in this document are preformatted so you only need to pick an appropriate one for the part you are working on. In this example document each section that uses a specific style starts with a style name surrounded by square brackets for easy identification. The text you are reading at the moment is formatted using [Normal] style, whilst the heading above it uses [Numberless Heading] style and so on. These words serve only as a reference and should be omitted in the paper you submit. Figure 2. This group may be expanded to a list by clicking on the icon in its lower-right corner which will open a window similar to the one in Figure 3.
Electric energy quality criteria relating to a DC supply system concern the circuits from the rectifiers installed in traction substations till the vehicle's current collector. Energy Law and related implementing provisions unequivocally state that an electrified transport system as the energy recipient shall fulfil the requirements regarding energy consumption, which are defined in the agreement. It imposes certain requirements for the railway power supply company. Introduction into traffic of the traction vehicles that are equipped with converter power electronics drive systems increased requirements regarding voltage quality in a DC catenary. At the same time, increase in share of non-linear recipients causes the increase of distortion in AC voltage supplying traction substations, and they also transfer to the DC side. Both these factors caused a change in operational conditions of the resonance smoothing filters hitherto used in rectifier traction substations supplied by AC medium voltage power lines. This paper presents a research and a case study of the problem of effectiveness of functioning of the used filters, from measurements allowing for problem identification to results of the studies of the proposed new solution of a filter and the results of observed exploitation of a prototype with the application of digital monitoring and diagnostics system.
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