DC-DC Converters with 3000VAC Reinforced Insulation for Railway Applications
Railway electrification systems rely on a steady DC supply to both power their DC motors and the control/energy circuits. These DC-traction systems are more energy efficient than their coal, gas, or diesel-based counterparts while also reducing CO2 emissions. DC-to-DC converters play a crucial role in improving the energy efficiency and power quality of electrified railways. Electronic components used in these applications will be subjected to extremes in temperature, humidity, vibration, and mechanical shock. As such, they require a high degree of electrical and structural integrity to be able to withstand these conditions and reliably operate. Using DC-DC Converters for Railway Applications Regenerative braking relies on the use of a large bidirectional DC-to-DC converter to send power back to the battery bank or energy storage system (ESS) from the DC feeder line. Smaller DC conversion is necessary in modern railways to distribute a continuous supply of power to all electronic devices and subsystems within the coach. These auxiliary systems include higher voltage critical systems such as engine controls, motor drive controls, and braking systems, as well as lower voltage secondary systems including lighting, battery charging, indication lamp, pump, and information displays, and electric door openers. The conventional solution often involves the use of an input filter, a 3-phase inverter, and a low frequency transformer in order to provide electrical isolation between the overhead line voltage and the auxiliary power supply equipment. Typically, this transformer is large and bulky, adding extra mass to an already space- and weight-constrained application. Instead, isolated DC-to-DC converters can be used to meet the size, weight, and power requirements of modern railway applications. The goal is to convert the high 750V, 1500V, and/or 3000V input voltage to a regulated 24, 28, 36, 48, 72, 96, or 110 volt output. The power distribution within the train from the main supply also requires a chain of DC-to-DC conversion to the secondary systems. As stated earlier, the nominal input voltages can vary from as low as 24 volts to as high as 110 volts; from there, a regulated 3.3, 5, 12, 15,or 24 volt output is necessary. The EN 50155 European standard for railway electrical equipment requires that the nominal input voltage can fluctuate between 0.7 and 1.25 times the rated voltage. The standard also allows short-term deviations between 0.6 and 1.4 times the nominal input voltage. In other words, a 110V system would require a continuous voltage range between 67.2 volts and 120 volts as was a fluctuation voltage range from 66 volts to 154 volts. DC-to-DC converters can support wide input ranges to cover more than one nominal input voltage. For example, a converter for the common 72V and 110V railway input voltages would need an operating input voltage range from 43.2 volts to 154 volts (see Table 1). 36-160Vdc Wide Input DC-DC Converters with 3000VAC reinforced Isolation Helios offers the RHKW, RHMW, and RHDW series of mountable DC-to-DC converters rated for railway and industrial applications. These devices all offer 3,000 VAC of reinforced isolation as well as a wide input range from 36 volts up to 160 volts, allowing them to be used in 72V, 96V and 110V railway applications. RHK03W 36-160Vdc Wide Input DC-DC Converter: 3W Read more RHK06W 36-160Vdc Wide Input DC-DC Converter: 6W Read more RHK10W 36-160Vdc Wide Input DC-DC Converter: 10W Read more RHM20W 36-160Vdc Wide Input DC-DC Converter: 20W Read more RDH40W 36-160Vdc Wide Input DC-DC Converter: 40W Read more DC-DC Converters EN 50155 Approved – Related Products For technical support about our off the shelf products and customised power conversion solutions, get in touch today. Contact Our Engineering Team
Showcasing Helios Power Solutions’ Commitment to Local Manufacturing and Critical Infrastructure
We are thrilled to have recently hosted Andrew Charlton MP and Hon Ed Husic, Minister for Industry and Science, at our Parramatta office. Their visit highlighted the Australian government’s dedication to supporting local businesses and fostering homegrown manufacturing initiatives. It was a fantastic opportunity for us to showcase our expertise in designing and manufacturing custom power conversion solutions specifically tailored for critical infrastructure players. At Helios Power Solutions, we take immense pride in our ability to provide cutting-edge power solutions that cater to the unique requirements of critical infrastructure projects. We firmly believe that robust and reliable power systems are the backbone of any infrastructure, ensuring uninterrupted operations and safeguarding communities. During the visit, we had the privilege of demonstrating our comprehensive design and manufacturing process, emphasizing our commitment to local production. Our team of skilled engineers and technicians works tirelessly to develop innovative solutions that meet the exact specifications and challenges faced by our clients in the critical infrastructure sector. To all the engineers and critical infrastructure players out there, we invite you to explore Helios Power Solutions for your power conversion needs. Together, let’s power the future of our nation’s critical infrastructure and ensure a reliable, sustainable, and resilient future
Announcing Partnership with Axon Group
As leaders in the critical infrastructure sector, Helios acknowledges the imperative for modernization and automation in the electrical grid. We are thrilled to announce our exciting partnership with Axon Group, a Software Engineering Company based in Latin America, renowned for their expertise in developing Power Systems Automation Solutions for industrial processes and power utilities. This new alliance empowers us to continue serving critical infrastructure players in Australia and New Zealand, offering a cutting-edge digital portfolio of fully customizable industrial software, supported by unparalleled local technical assistance. SCADA/HMI Software Communication Gateway Testing Protocol Software Visualization and Analysis Cybersecurity Solutions Specifically Designed For Industrial & Utilities Applications Our comprehensive range of Power Systems Automation solutions delivers a diverse selection of innovative, customizable, and user-friendly industrial software. From Communication Gateway and SCADA/HMI systems to Comtrade file reading systems, Backup management software, and Industrial protocol test simulators, we equip you with a complete toolkit to enhance the efficiency and reliability of your operations. Seamless integration with your existing devices and systems is of paramount importance to us. That’s why we provide solutions that support multiple industrial communication protocols, including DNP3, IEC-60870-5-104, ICCP, secure ICCP, and the globally recognized IEC 61850 standard for digital substations. Our products are meticulously designed to enhance compatibility and optimize performance, empowering you to unlock the full potential of your power infrastructure. With Helios Power Solutions‘ expertise and Axon Group’s industry-leading technology, you can confidently anticipate enhanced efficiency, improved reliability, and seamless integration within your power grid operations. Don’t let the complexities of your electrical power operations hinder your progress. Get in touch with us at power.systems.automation@heliosps.com.au, our team of experienced engineers is always ready to support you with the best local technical assistance. Power Systems Automation Software Request Free Demo Reliable and fully customizable SCADA HMI Software for utilities and industrial processes Exclusively brought to you by Helios Power Solutions Request Free Demo Simulation & testing of communications Standard IEC 61850, including: MMS, GOOSE, and SAMPLED VALUES. Exclusively brought to you by Helios Power Solutions Request Free Demo The easiest and fastest way to concentrate and process data in real time allowing multidirectional communication Exclusively brought to you by Helios Power Solutions Request Free Demo Facilitate the testing and analysis of industrial protocols, ensuring multiple protocol support in real time. Exclusively brought to you by Helios Power Solutions Request Free Demo A remote reading system that allows the automatic collection of configuration files, fault logs and events from IEDs Exclusively brought to you by Helios Power Solutions Request a Live Demo Axon BMS is a Private Management Backup System for protecting critical equipment and data Exclusively brought to you by Helios Power Solutions For technical support about our off the shelf products and customised power conversion solutions, get in touch today. Contact Our Engineering Team
New 1500W DC Power Module for Critical Comms
We are thrilled to announce the availability of a new 1500W AC/DC Power module for 48VDC and 24VDC powered equipment and backup systems. The high efficiency modules are compatible with the ICT Modular Power Series, MPS Ultra, Hybrid Power Series and Hybrid Ultra which offer remote Ethernet-based communications for monitoring and control; enhanced security and reliability features including SNMPv1/v2c/v3 and TLS 1.2; fan fail detect alarms; and advanced battery management features for sealed lead acid and lithium ion batteries. Modular DC Power Systems with Smart Distribution Products Compatible with the ICT 1500W Module MPS Ultra – 2U Redundant Hot Swap Modular DC Power System up to 12kW Read more 24V & 48V Modular Power Series DC Power System: 700W – 6000W Read more Hybrid Power Series up to 3kW Dual Output DC Power System 48/24-12Vdc Read more Hybrid Ultra Series – up to 7.5kW Dual Output DC Power System 48/24-12Vdc Read more Applications Fixed Wireless Access Radio Access Networks FTTP/H PON GPON Distributed antenna systems (DAS) SCADA Contact Us For Technical Assistance For technical support about our off the shelf products and customised power conversion solutions, get in touch today. Contact Our Engineering Team
Helios introduces new programmable AC Power Sources
Helios has introduced three new programmable AC power source solutions, designed for research projects and testing critical applications. The new range complements Helios’ other power supplies for Automatic Testing Equipment (ATE), and is ideal for universities, laboratories, national research institutes, and critical manufactures. Reliable, flexible and easy-to-configure, the new systems can support research and testing across a wider range of science and technology critical applications, including: Country Safety ( Electrical testing for military environments) Health & Medical (Vaccine, Biomedical, Nutrition) Natural Environment (Atmosphere, Biosecurity, Oceans, Natural resources) Technology (Astronomy and space, Robotics, Cybersecurity, Renewable energy) Industrial Manufacturing New range promises efficiency, reliability and cost-effectiveness. The SP-300, SPS300 and SPTS range of AC power supplies are single phase and three phase power sources. They provide high power density, high reliability and high precision features in 2U/ 3U/ 4U/ 9U/ 17U/ 21U form factor from 600W up to 20kW. AC and DC mixed or independent output modes for voltage DC offset simulation Control via touchscreen or digital control interfaces Standard RS232 & RS485 and optional LAN & GPIB. Support both SCPI (Standard commands for Programmable Instruments) & MODBUS communication protocols Compliance testing to IEC 61000-4-11 / IEC 61000-4-14 / IEC 61000-4-28 / IEC 61000-4-13 Phase angle dimmer simulation Power line disturbance simulation High output crest factor which satisfies surge test requirements Output frequency 15-1000Hz, capable of setting output slope of voltage and frequency Combine units for multi-phase configurations Built-in power meter, which can measure 15 electrical parameters per phase, including voltage, current power, etc. Measure up to 40 orders of the voltage of current harmonics (SP 300 model) New Series of Single Phase & Three Phase AC Power Sources SP-300 1Ph Programmable AC Power Source 2.8A – 48A / 150VAC – 300VAC / 600W – 5kW Read more SPS-300 3Ph/1Ph Programmable AC Power Source 2.52A – 165.6A / 150VAC – 600VAC / 1.2W – 20kW Read more SPST 3Ph/3Ph Programmable AC Power Source 2.8A – 46A / 150VAC – 300VAC / 1.2kW – 15kW Read more Helios commitment to supporting science and technology The science and technology sector are vital to our country’s success. The sector plays a crucial role in improving our natural environment, economy, and quality of life. It also helps to protect people against natural disasters and climate change. That’s why Helios works closely with research institutes and technology centres. We understand the sector’s needs and provide fit-for-purpose products, supported with on-the-ground expertise and service, and a robust supply chain. We believe if we do our job well, the sector can reward Australia with new knowledge, discoveries, and patents. And this will increase the resilience and autonomy of Australia’s economy and safety. For technical support about our off the shelf products and customised power conversion solutions, get in touch today. Contact Our Engineering Team
