IEC-62236-4 | EN-50121-4: Electromagnetic compatibility – Part 4: Emission and immunity of the signalling and telecommunications apparatus IEC-6 | EN-5: Electromagnetic compatibility – Part 3-2: Rolling stock – Apparatus IEC-60850 | EN-50163: Supply voltages of traction systems IEC-61287-1 | EN-61287-1: Power converters installed on board rolling stock – Part 1: Characteristics and test methods IEC-60571 | EN-50155: Electronic equipment used on rolling stock Just to name a few, here are the most relevant standards for power electronics applied in the railway industry. The compact dimensions of 156.6 x 86 x 55 mm or 156.6 x 162 x 55 mm (option WK) and the high packing density allow an efficient, cost-saving solution for different power supply tasks in railway applications.© Premium Power Supplies Most Relevant Standards Using a primary-related control input RC (Remote Control), they can be put in a stand-by mode with lowest power consumption thus, contributing to a longer availability of the supplied systems, especially during battery operation.ĭesigned for an operating temperature range of -40 to + 70 ☌ the cooling is guaranteed either by the integrated heat sink (option WK) or by mounting the base plate on a heat dissipating surface. An undervoltage shutdown protects the converter as well as the application from damage during "Brown out" effects of the supply voltage. The devices have got an "Output Voltage OK" signal as potential-free contact as well as remote control to place the converter in a standby mode with the lowest power consumption. Two input voltage ranges according to EN 50155 are available: 24 V DC (16.8 to 30.0 V DC) and 110 V DC (50.4 to 137.5 V DC) which allow the operation of the DC/DC converters on common battery or on-board networks in Europe, in track-side applications and in stationary railway systems. The design of the output voltage with U/I characteristic allows the supply of critical loads and charging of batteries (optional Uout = 27.6 V DC). The converters with a 24 V DC output voltage deliver an output power of 250 W. The aim of the development was a further increase in efficiency and reliability and the integration of various features such as "Power Good" signalling and stand-by operation. It is based on a revision of the series PCMD250 converter after more than 10 years of successful market presence. MTM Power has developed the new series PCMDS250 DC/DC converter for universal applications in railway and vehicle technology.
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