Purchase your copy of IEC as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available online in. Find the most up-to-date version of IEC at Engineering IEC Edition INTERNATIONAL. STANDARD. NORME. INTERNATIONALE. Railway applications – Fixed installations.
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Cost-effective operation reducing environmental impact, conserving resources — with reliable Rolling Stock. Follow these links to find other Standards similar to the one you are viewing.
The purpose of this isolation is to prevent stray dc currents from flowing through the earth and potentially causing corrosion of nearby metallic infrastructure.
Reduce your voltage with transformers and use rectifiers to convert AC to DC current. Contact Experience high performance — with the DC traction power supply Benefit from our decades of experience in the engineering, construction, and commissioning of DC traction power supply systems. The principles of negative grounding device operation and corresponding voltage settings will also be discussed. Distribute energy feeds efficiently and connect them reliably with the rectifier group, regardless of whether you select a gas- or air-insulated indoor installation.
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SCD-C compact short-circuiting device Download brochure. The lack of an intentional connection between the tracks and earth allows voltage differences to occur along the rails, and between the rails and nearby structures.
Designed especially for highly dynamic rectifier loading, our rectifier transformers have power ratings that range from approximately one MVA for stations supplying trolley cars and trams to approximately seven MVA for operating heavy subways.
Rolling Stock Cost-effective operation reducing environmental impact, conserving resources — with reliable Rolling Stock. Experience high performance An age of extreme urbanization 622128-1 for innovative and flexible mobility concepts.
Medium-voltage switchgear Reliable operation Distribute energy feeds efficiently and connect them reliably with the rectifier group, regardless of whether you select a gas or air-insulated indoor installation. Nov 9 3: Sitras PRO combined protection unit and controller Download brochure. Rail systems must do one thing above all: If you need help with the purchase or have any queries please email enquiries standards.
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IEC 62128-1 Ed. 2.0 b(2013)
We recommend that you check the website of the publishers of the international document before making a purchase. Please note that there might be constraints on site display and usability. The main technical changes with regard to the previous edition are the restructuring of all clauses and changes in the touch voltages limits. The prefabricated type-tested equipment with air or gas insulation complies with all national and international standards and guarantees the highest level of safety for operating personnel.
As a DC protection unit, it protects DC switchgear and contact line systems from critical operating 62218-1 and detects short circuits during a current rise — even before maximum short-circuit currents are reached.
DC traction power supply system
Sitras SCD-C reduces excessively high voltage by reliably short-circuiting the return circuit and structure ground temporarily. Our end-to-end modular portfolio of converters, DC switchgear, and protection systems lets you operate your rail systems with confidence — and with top performance, efficiency, and safety. Sitras CSG is a type-tested, metal-enclosed indoor switchgear unit with an integrated diode rectifier. Modular portfolio DC traction power supply — high-performance, efficient, and safe Reduce costs and save resources using efficient, resilient traction power supply systems.
Sitras LCU local charging unit Download brochure. If an earth fault occurs broken catenary conductor falling on the ground, for examplethere may not be a low-resistance circuit back to the substation due to the electrical isolation between running rails and earth ground. Although we endeavour to maintain an up-to-date catalogue, on occasion we may not have the latest version of a document, including where it has not yet been provided through an international feed.
Equipment uec to detect this condition and connect the substation negative dc bus to the substation grounding grid is gradually being incorporated into modern North American dc traction power substation design. With effective service concepts and innovative technologies Siemens Rail Services ensures the highest reliability and availability of your rail systems.
It also applies to all aspects of fixed installations that are necessary to ensure electrical safety during maintenance work within electric traction systems. For the best experience we suggest that you download the newest version of a supported browser: Intermodal Solutions comprise a range of innovative IT-based solutions that improve passenger comfort and travel.
Sitras SCD reduces excessively high voltage by reliably short-circuiting the return circuit and structure ground temporarily.