Powerbox , one of Europe's largest power companies, has been a leader in providing the best solutions for demanding applications for more than 40 years and is now announcing the second generation for marine applications and demanding industrial systems. Power supply. For marine equipment manufacturers to simplify logistics and reduce energy consumption, the PT578 integrates programmable digital protection, built-in redundancy and parallel circuits. Based on the latest technology, the 500W PT578 has a typical efficiency of 94% and can operate from -25 to +70 °C. It includes an active PFC, three-output protection mode firmware reconfigurable, designed for convection cooling, and coated with waterproof glue for moisture and corrosion protection, and can withstand high shock and vibration. The PT578 's technology is suitable for immersive computing systems that require the power supply to operate safely in a neutral fluid container. It is also part of the PRBX custom power library.
“This series was introduced in 2005, and the concept of an immersive data center has emerged. Since then, some experiments have become a reality. This technology requires special care when selecting switching power supply components and assembly, which is required by the marine industry. very similar immersion data centers are becoming increasingly common, many industrial embedded applications have adopted immersion-compatible computer needs power. "Powerbox vice president of MartinFredmark said," for the development of marine PT578 same technology platform Components and design rules are used as immersion power supplies. Our custom power solutions group now uses these components and technologies as part of the PRBX technology platform, reducing time-to-market for immersive embedded industrial computers and similar applications."
The requirements for marine and offshore facilities are greater than for industrial and office environments, requiring power supply designers to follow strict design rules and comply with international standards to select components and technologies. Limitations on mechanical size and climate requirements are also more demanding than typical industrial applications. Vibration levels of up to 4g are common, as well as large temperature fluctuations from -25°C and +70°C, and high relative humidity environments where condensation cannot be ruled out. The new product, the PT578 integrates the latest power technology to provide unique electrical and mechanical properties for the special marine industry.
To ensure safety, offshore power architectures and immersive computing designs often require redundant power supplies. To ensure this, several power supplies are usually connected in parallel via an external diode module. To simplify installation and use, the PT578 has built-in circuitry that allows the user to choose whether the power supply is used in "single mode" or "parallel mode shared by falling power." This also reduces the number of products in stock and the space used in the power shelf.
Depending on the application environment, output protection may require different types of configurations (off, auto-recovery mode, or constant current), which is one of the features of the PT578. Based on the firmware structure, the output protection can be selected via the DIP switch with factory default settings, but any file can be reconfigured in our PRBX Configuration Center for specific needs. The device also includes a DCOK signal and a potential free relay that implements fault protection. The front indicator indicates the status of the power supply unit (OK or fault).
When the constant current mode is selected, the PT578 is used as a current generator for large capacitive loads, driving DC motors, and also provides an ideal solution for secondary battery backup and charging of critical equipment, such as navigation systems.
The PT578 has an input voltage from 90 to 265 VAC and a DC bus voltage from 125 to 375 VDC. The input AC frequency is 47-63 Hz, for the naval equipment frequency is 440 Hz and the reduced PFC. Covering a large number of marine applications, from sea to air, the PT578's special operations in non-working mode range from 10.000 feet to 30.000 feet.
There are two standard versions with adjustable output voltages, 24VDC (23 to 29VDC) and 48VDC (47–56VDC) with 500W output power and peak power up to 750W in 10 seconds.
In order to meet the requirements of the international ocean, PT578 meets the high vibration strain in Table 7 of DNV-GL, Class B, ±1.6mm displacement, 2-25Hz, 4g; 25-100Hz (1x/min). Protected by the coating, the PT578 operates in a humid environment with a humidity of 100%. Condensation meets IEC60947-2, 2kV, 60s at all relevant temperatures. The product's insulation voltage is input to the output 3000VAC and input to the chassis 2000VAC.
Using high-density integrated building practices, the PT578 measures 132x67x128mm (excluding DIN rail mounting equipment), one of the most compact 500W power supplies in the series, saving critical space on the power shelf to accommodate more features per rail.
The PT578 also meets and complies with the relevant sections of EN61000-3 and -4, EMC complies with EN60945, complies with LFIEC605333VRMS, 50Hz-12kHz, EMC Directive 2014/30/EU and DNV-GL temperature class D, -25 to +55 °C; humidity Class B, up to 100%, condensation; vibration class B, ±1.6mm displacement, 2-25Hz, 4g; 25-100Hz; EMCB class, guide, DNVGL-CG-0339, November 2015 edition. The release date is expected to be fixed.
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