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Modern power electronics enable the efficient supply of almost all kinds of electric applications in commercial buildings, e. g. lighting, IT- and telecommunication equipment, as well as speed-controlled drives in heating, cooling and ventilation applications. This potential can be used more effectively using a 380 VDC Grid compared to a traditional AC Grid in commercial buildings. The European ENIAC...
400VDC distribution enables a variety of different power architectures that closely match three main attributes driving new power technologies today: availability, efficiency and scalability. The presented 400VDC distribution architectures offer the simplicity of −48VDC power infrastructure and the benefits of higher distribution voltage already in use in AC power infrastructure. It makes 400VDC a...
We present a quantitative analysis of the benefits of the 380 VDC power distribution system compared to the current −48-VDC power supply system. The analysis is based on models of typical distribution configurations in global telecommunication sites and takes into account codes, regulations, and practices for wiring and voltage drop comparison between centralized/decentralized 48- and 380-VDC. In...
In the past Intelec, many presentations and DC panel have shown the advantage of using 48V DC power supply for Telecom. Reliability, simple scalability, modularity, low cost maintenance, reduced footprint, higher power efficiency than AC back-up architecture, high safety.
400VDC is becoming a new voltage interface for telecommunication buildings and data centers as well as for ICT equipment. 400VDC interface covers applications for up to 400VDC with a typical nominal voltage of 380VDC. Key drivers for utilizing a higher DC voltage are overall efficiency and reliability gains vs present solutions. However, introduction of a new 400VDC interface brings up some questions...
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