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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Modular portfolio DC traction power supply — high-performance, efficient, and safe Reduce costs and save resources using efficient, resilient traction power supply systems. Sitras CSG is a type-tested, metal-enclosed indoor switchgear unit with an integrated diode rectifier. 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 6128-1 to approximately seven MVA for operating heavy subways.
Rail Automation Optimum, systematic route efficiency. These withdrawable diode rectifiers are designed to supply traction power to DC-operated rail systems. Ief age of extreme urbanization calls for innovative and flexible mobility concepts.
This paper will review current American and European standards and codes for maximum permissible rail voltage on direct current traction power systems. Benefit from our decades of experience in engineering, construction, and commissioning of DC traction power supply systems. The maximum permissible voltage levels will be explained and compared.
Sitras LCU can be placed at stations or stops or can be integrated into traction substations. This standard applies to all new lines and to all major revisions to existing lines.
Please note that there might be constraints on site display and usability. Sitras REC diode rectifiers Download brochure. Equipment intended 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.
The Sitras REC-W is based on the service-proven series of fixed-mounted diode rectifiers using air-cooled disc-type diodes with a high blocking voltage.
DC traction power supply system
We recommend that you check the website of the publishers of the international document before making a purchase. For our DC substations, we use the same proven standard medium-voltage switchgear used by utilities and industrial plants. Rolling Stock Cost-effective operation reducing environmental impact, conserving resources — with reliable Rolling Stock.
The formation of stray currents is also minimized by automatically opening the short-circuiting device. Europe ; United States Subject Areas: Medium-voltage switchgear for the DC traction supply system For our DC substations, we use the same proven standard medium-voltage switchgear used by utilities and industrial plants. Reduce your voltage with transformers and use rectifiers to convert AC to DC current. As 662128-1 DC protection unit, it protects DC switchgear and contact line systems from critical operating conditions and detects short circuits during a current rise — even before maximum short-circuit currents are 62182-1.
The isolation of the tracks from the earth is not perfect. It looks like you are using a browser that is not fully supported. Stell, R W Benjamin Conference: As a 662128-1, the area in the vicinity of the fault may potentially be elevated to unsafe voltage levels. Without a low-resistance path back to the substation, there may be a resulting low-level short circuit current flow insufficient to operate the substation protective systems.
Sitras SCD short-circuiting device for DC traction power supply In DC traction systems, impermissible contact voltage can occur between the return circuit and the structure ground due to operational currents and short-circuit currents. 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.
Intermodal Solutions Intermodal Solutions comprise a range of innovative IT-based solutions that improve passenger comfort and travel. Uec systems must do one thing above all: Sitras PRO combined protection unit and controller Download brochure. Sitras REC type rectifiers are designed to supply traction power to DC-operated mass transit systems and main-line railways.
IEC 62128-1 Ed. 2.0 b(2013)
The negative return portion of a modern direct current dc traction power system, which includes the tracks the running railsis normally isolated from earth to the maximum extent practical. International Classification for Standards ICS is an international classification system for technical standards.
Traction power Geographic Terms: It is important to us that you purchase the right document. These devices quickly connect the running rails to the station structure to eliminate unsafe voltage differences. For the best experience we suggest that you download the newest version of a supported browser: Or they could be impressed on a person walking along the tracks.
The system and its components. Standard oil-insulated or industry-proven cast-resin transformers are used that also fulfill special requirements for fire protection and safety. If you need help with the purchase or have any queries please email enquiries standards. Sitras SCD reduces excessively high voltage by reliably short-circuiting the return circuit and structure ground temporarily. Experience high performance An age of extreme urbanization calls for innovative and flexible mobility concepts.
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Each track tie and insulated rail fastener assembly can be electrically represented as a resistor of high ohmic value jec between the rails and the earth. Cost-effective operation reducing environmental impact, conserving resources — with reliable Rolling Stock. Intermodal Solutions comprise a range of innovative IT-based solutions that improve passenger comfort and travel.