EN50155 compliant, railway DC-DC converters offer 900Vdc high input voltage and wide 525V to 1270Vdc input range
The HVT 100R-1K-F2 series is a 100W addition to our line of high input voltage railway DC-DC converters. They operate from a high input voltage of 900Vdc (525V–1270Vdc range) and deliver 24Vdc, 48Vdc, 110Vdc regulated output voltages. Custom input/output values are available on request. An optional built-in redundancy diode would allow for a number of units to be connected in parallel to achieve higher output power or N+1 redundancy.
The HVT 100R-1K-F2 railway DC-DC converters meet the stringent requirements of EN50155 for electronic equipment used on rolling stock. They and are typically installed in on-board and trackside infrastructure applications. The units have heavy filtering on the input and output and comply with EN50121-3-2. They also meet EN61000-4-2 (ESD), EN61000-4-3 (RF Immunity), EN61000-4-4 (Fast Transients), and EN61000-4-6 (Conducted Immunity).
To ensure high reliability and long operating life, all critical components on the primary side are designed and tested for corona inception levels that are significantly higher than the operating voltages. The design is verified for 5600Vdc input to output isolation and production level testing is 3000Vdc input to output, which isolates equipment from the supply. Other electronic protection includes inrush current limiting, reverse polarity protection, output current limiting, short-circuit protection and self-resetting thermal shut-down in the case of insufficient airflow.
Low component count, large design headroom, and the exclusive use of components with established reliability also contribute to ensuring that the unit delivers many years of trouble-free operation.
Cooling is by conduction via baseplate with additional cooling by natural convection through the cooling slots. All heat generating components are installed on aluminum heatsink blocks which are thermally connected to the base plate. This enables operation over a -25°C to 55°C temperature range for full specification. Requirements for wider temperature ranges can be accommodated.
The compact units measure 114 x 58 x 256 mm (W x H x D). They are ruggedized to ensure immunity to shock and vibration (IEC 61373 Cat 1 A&B), which makes them suitable for operation in extreme environments. The internal boards are conformal coated for protection from moisture, humidity and airborne contaminants.
Heavy-duty industrial quality versions of this design are available on request.
ABSOPULSE Electronics is an original equipment manufacturer (OEM) of an extensive range of railway and industrial grade power conversion solutions. We specialize in fully custom solutions. All of our existing designs can also be modified to meet your application requirements.
- 100W railway quality converters;
- Meet requirements of EN50155;
- Input: 900Vdc nominal (525V-1270Vdc operating range);
- Output: 24V, 48V, 110Vdc or custom regulated;
- Line/load regulation: ±1% combined from 5% load to full load;
- EMI: EN50121-3-2;
- -25°C to +55°C operating temperature range;
- N+1 redundancy (optional);
- F2 chassis: 114 x 58 x 256 mm (4.5″ x 2.3″ x 10.1″) W x H x D.
Copyright © ABSOPULSE Electronics Ltd.