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Powerbox’s battery backup unit system reduces railway modernization times

Press Release

September 25, 2017


Powerbox, one of Europe’s largest power supply companies and a leading force for four decades in optimizing power solutions for demanding applications, has announced the launch of its second generation Battery Backup Unit System (BBU-S) to support the modernization of railway networks and industrial applications that require flexible power backup systems with extended monitoring and control. Responding to the needs of a large range of applications and designed for use in enclosed outdoor environments, Powerbox’s BBU-S comprises an industry standard 19-inch rack unit with sub-modules. System-wise, the BBU-S includes an active power factor corrected input, micro controlled smart charging, automatic battery test, output distribution and several control and monitoring signals. Developed for fast deployment in heterogeneous railway and industrial applications, the versatile BBU-S is available with AC or DC input voltage and can charge and control multiple battery pack configurations. The BBU-S starts at 340W and is available up to 1200W. For remote monitoring and control, the BBU-S offers multiple options such as LAN interface, a radio communications module (GSM, 3G, LTE) and can be reconfigured to match specific demands as needed for different applications.

Combining a high efficiency switching topology with advanced control and monitoring, the new generation of PRBX BBU-S is the ideal solution to power railway trackside applications such as signaling, offering a significant cost and energy saving compared to conventional technology. The BBU-S includes a range of products that can be quickly modified to meet specific demands such as adaptive voltage and power to suit the length of the track, and to the number of systems installed in the signaling network.

The BBU-S power supplies are enclosed in metal cases with individual components being protected by conformal coating and delivering a regulated voltage to the signaling equipment. The BBU-S also incorporates a power supply backup system with monitoring and control, ensuring that batteries are always operational. To guarantee an ‘always-on’ condition, the BBU-S includes dual redundancy battery strings.

Railway and demanding industrial applications have mandatory requirements that any parts installed in a critical system must have the provision to be quickly and easily repaired or replaced. Based on a range of plug-and-play modules, the PRBX BBU-S can be installed, maintained, repaired and eventually decommissioned with the minimum possible downtime of service, often just minutes.

“Railway modernization programs are now integrating digital control and additional safety functionalities that require a new generation of equipment for signaling, one that includes monitoring and independent battery backup. Most, if not all modernization programs will require it necessary to maintain and upgrade existing systems without any traffic disruption. This demands a high degree of flexibility in the power solution deployed at the trackside.” said Patrick Le Fèvre, Powerbox’s Chief Marketing and Communication Officer.“ To achieve this goal, we developed the modular concept BBU-S, making it easy to adjust and adapt to different configurations. Existing power modules and monitoring units can be substituted by fitting the new generation ones into the existing chassis, and in the cases of expansion or high level upgrades that require a very short time to achieve operational status, the new modular racks can be customized to specific configurations to power new signaling equipment such as optical fiber transmission.”

Designed for flexibility, the PRBX BBU-S provides a smart power solution to any system and can be configured to accommodate different bus-voltages, for example 24, 36 or 120VDC. The AC input system operates within the range of 185 to 253VAC, but due to the modular design concept and plug-and-play modules, the input is able to comply with any type of voltage, AC or DC, as well as voltage range. For example when the BBU-S is used in a micro-grid application and connected to a high voltage DC input, the front end modules comply with the micro-grid bus voltage.

The BBU-S is built in two 3U 19 inch racks containing the power supplies, charger and control unit on the top, and battery switches, inverter block and alarm switches in the bottom rack.

The BBU-S is designed to meet industrial standards and regulations including: EN60950, UL60950, EN61000-6-2, EN61000-6-4, EN61000-3-2, EN50125-3, EN50124-4, LVD and RoHS.

Powerbox releases full range of high input voltage
DC/DC converters for microgrids and datacenters

Press Release

August 17, 2017


Powerbox, one of Europe’s largest power supply companies and a leading force for four decades in optimizing power solutions for demanding applications, has announced a new range of high-voltage input DC/DC converters for microgrid, datacenters and industrial applications. Part of its industrial line, the new series of HVDC/DC converters operate with an input voltage range of 180VDC to 425VDC, and deliver output power levels from 150W to 750W. The range of applications powered by high-voltage DC supplies is rapidly expending, and from the latest microgrids and datacenters using high voltage DC (HVDC) bus voltages to reduce power losses through to industrial systems, all of these applications require ready to use, board-mounted power converters. Powerbox’s PQB-PHB-PFB300S series is specially designed for such applications. They are built around a high efficiency topology, have a layout optimized for thermal conduction, an input/output isolation of 3,000VAC minimum and deliver output voltages from 3.3VDC to 48VDC.

Energy network managers and systems architects developing electronic equipment connected to microgrids are concerned about energy efficiency and utilizing direct conversion from the 350VDC bus for specific applications. In many cases the voltage conversion is achieved using single stage, modular HVDC/DC converters stepping down the bus voltage to the load. The same is now happening in the latest generation of datacenters, increasing energy utilization by the reduction of power losses by migrating from AC distribution to HVDC. High voltage DC distribution is also very common in industrial electrical vehicles such as are used in the mining and tunnel industries. These require fully encapsulated power modules able to operate within a wide temperature range, and down to -40 degrees C. Such applications are what the PRBX PQB-PHB-PFB300S HVDC/DC converters series is designed for.

In order to provide a solution for any application powered from a high-voltage bus, the PRBX PQB-PHB-PFB300S series includes four power levels (150, 300, 600 and 750W) in three industry-standard packaging formats and footprints; quarter, half and full-brick.

The 150W rated PQB150-300S is packaged in a quarter-brick format, has an input voltage of 180VDC to 425VDC and offers seven different output voltages; 3.3VDC/30A, 5.0VDC/30A, 12VDC/12.5A, 15VDC/10A, 24VDC/6.3A, 28VDC/5.4A and 48VDC/3.2A. The typical efficiency is 89%.

The PHB300-300S is a half-brick, 300W rated version with an input voltage of 180VDC to 425VDC and offers five different output voltages of 5VDC/60A, 12VDC/25A, 24VDC/12.5A, 28VDC/10.7A and 48VDC/6.25A. The typical efficiency is 89%.

The PFB600-300S comprises full-brick, 600W modules with an input voltage of 200VDC to 400VDC providing four different output voltages; 5VDC/80A, 12VDC/50A, 24VDC/25A, and 48VDC/12.5A. The power efficiency is typically 89% and up to 91% on the 24 and 48VDC outputs. For redundancy or additional power, the units include active current sharing.

The 750W PFB750-300S full-brick modules can be operated with an input range of 200VDC to 425VDC and are available in six different output voltages; 12VDC/62.5A, 15VDC/50A, 24VDC/31.2A, 28VDC/26.7A, 36VDC/20.8A and 48VDC/15.6A. The typical efficiency is 90% and the product includes active current sharing.

The PFB600-300S and PFB750-300S have an output trim range of 60-110% that facilitates using the modules as a constant current source or as a secondary battery charger.

Designed for use in industrial environments, the PQB-PHB-PFB300S series can be operated within a wide temperature range of -40 to +100 degrees C and in 95% of non-condensing relative humidity. The modules’ thermal shutdown is set to protect the units when the housing reaches 105 degrees C.

All products in the PRBX PQB-PHB-PFB300S series include under-voltage, over-voltage protection and lockout, continuous short circuit protection, current limiting and over-temperature protection. Both positive and negative remote ON/OFF types are available. The output voltage can be adjusted via the trim pin and all products feature voltage sensing and compensation pins.

The products are encapsulated in a plastic case with an aluminum baseplate to facilitate cooling and power dissipation. All units operate at a fixed switching frequency and including input filters (Pi or C types).

As required for HVDC bus voltage applications, all products have an input to output isolation of 3,000VAC minimum. The input to case isolation is 2,500VAC and output to case is 500VAC. The isolation resistance is 107 (10 to the power of 7) ohms minimum.

The PRBX PQB-PHB-PFB300S series meet the requirements of UL60950-1, EN60950-1 and IEC60950-1 standards and CE mark 2014/30/EU.


About Powerbox

Founded in 1974, with headquarters in Sweden and operations in 15 countries across four continents, Powerbox serves customers all around the globe. The company focuses on four major markets - industrial, medical, transportation/railway and defense - for which it designs and markets premium quality power conversion systems for demanding applications. Powerbox’s mission is to use its expertise to increase customers’ competitiveness by meeting all of their power needs. Every aspect of the company’s business is focused on that goal, from the design of advanced components that go into products, through to high levels of customer service. Powerbox is recognized for technical innovations that reduce energy consumption and its ability to manage full product lifecycles while minimizing environmental impact.


For more information

Visit www.prbx.com

Please contact Patrick Le Fèvre, Chief Marketing and Communications Officer

+46 (0) 158 703 00

marcom@prbx.com

Ref: PRBX-PR-17009



PRBX High-Voltage input DC/DC converters 150W to 750W series


Related link :

PQB150-300S

https://www.prbx.com/product/pqb150-300s-series/


PHB300-300S

https://www.prbx.com/product/phb300-300s-series/


PFB600-300S

https://www.prbx.com/product/pfb600-300s-series/


PFB750-300S

https://www.prbx.com/product/pfb750-300s-series/





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