Transport of people or goods by air, water, road, cable and pipeline is an essential process required by any single individual or organisation. The mere fact of commuting every day to work successfully and without delay makes you realise the relevance of a continuous and reliable service at any time. Railway systems are the backbone of the main cities and countries around the world. Helios Power Solutions has a comprehensive range of products available in Australia, New Zealand and Asia designed specifically for rail applications. These products meet the relevant rail standards for the application. Typical applications include traction and control systems, door control systems, signalling and communication systems, charging devices for electrical motor start, information displays, entertainment systems, GPS tracking, video surveillance and security systems and passenger information systems. Our railway quality power conversion products include railway approved DC-DC power converters, AC-DC power supplies, rectifiers and battery chargers and DC-AC sine wave inverters. All our products are designed for long operation in severe environments.
Railway switch-mode power supplies offer
- Any input and output required
- Wide input voltage ranges (EN50155)
- Single or multiple outputs
- EMI/EMC filtering to the required standard, EN55022 Class A or B
- Optimal thermal performance
- Wide operating temperature ranges including -40°C to +70°C. Wider ranges are available
- Conduction/convection cooling
- Wide range of options including output fail alarms, redundancy, indicators, enable/inhibit and other controls
- High quality designs – large design headroom
- High quality components with established reliability
- High efficiency
- Full electronic protection – surge and transient protection
- RoHS compliance
- Railway standard compliance
Railway power supplies are designed to meet rail-specific standards including EN50155, EN45545, EN50163, EN50124, EN50125, EN61000, EN50121-3-2 EMI, EN55022 Class B, RIA12, IEC571, as well as IEC61373 shock/vibration and RIA13 and RIA20 mechanical standards. Check Out our lastest application specific newsletter HERE.
Railway Applications
Ventilation and Air-conditioning System Requirements
- Wide input voltage range
- Wide operating temperature range
- High acceptability of vibration and shock
Driving System Requirements
- Wide input voltage range
- High acceptability of vibration and shock
Information Display Requirements
- High conversion efficiency
- Small size
Door System Requirements
- Wide input voltage range
- Wide operating temperature range
- High acceptability of transient voltage
Lightning System Requirements
- Wide input voltage range
- High MTBF
Rugged mechanical designs
Helios power supplies are ruggedly constructed and can be customized for specific mechanical requirements. Standard mechanical packages and ruggedization options include:
- Chassis and wall-mountable units in vented conduction/convection or fan-cooled enclosures;
- DIN-rail and open-frame format available for many designs;
- Plug-in (Eurocard) format for modular power systems in 19 inch or 23 inch racks;
- Conformal coating and ruggedizing are standard;
- Full encapsulation (potting) in a thermally conductive MIL-grade silicon rubber compound with UL94V-0 flammability rating for immunity to high levels of shock and vibration, humidity, moisture, dust, salt, oil, insects and other contaminants;
- Enclosure in rugged, IP66- or IP67-rated waterproof, dustproof and explosion-proof die cast aluminum packages. These enclosures also protect internal electronic boards from condensation and the ingress of oil, salt, sand, insects and other environmental contaminants.
- Custom connections.
Case Studies for Railway Applications
230W , Railway, DC/DC converter/Charger 600Vdc to 28Vdc/8A
Customer request was for a ruggedized dc-dc converter 600VDC to 24VDC 10A to power the new Vehicle Passenger Information System (VPIS) equipment being fitted to A – class trams.
Compliance to Rail standards was a necessity. The converter needs to fit into a confined area and must have a min. IP52 rating.
Solution: Our HVI300R series fitted into one of our IP65 enclosure’s, with a special mounting bracket. Special Features:
- 424 – 720Vdc input range.
- Earthlink on lid, Clear bezel installed on lid for LED indicator.
- Designed to meet EN60950-1 and EN50155
- Shock / Vibration IEC 61373 Cat 1 A & B
- IP 65 enclosure.
Portable DC Systems for Railway Applications
We can implement any battery charger/power supply or Inverter inside pelican and underwater kinetics cases (rugged, splash-proof cases with sturdy handles for portability in the field).
AMP-K4069: Portable power supply for measuring resistance on the overhead lines in the railway. This portable solution uses a special meter that calculates resistance based on voltage and current values.
- Test points are provided
- Control knobs for adjusting both output voltage & currents
- Dual output meter display both current and resistance
