Device for uninterruptible power supply with a fuel cell
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Device for measuring the humidity and reflectance of surfaces
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Fuel cell with perforated planar electrode adjacent to ion exchange layer, has filled edge perforations where electrode is led out through sealant mass
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Device for the uninterruptible power supply of an electrical load with alternating current
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DC machine
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No-break power supply with an electrical machine and a flywheel
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Device for providing an uninterrupted supply of power comprising an electrical machine and a flywheel
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Device for energy conversion with at least one fuel cell and / or a hydrolyser
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Fuel cell
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Foundation trough for power engineering systems
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Back-up current supply for electrical load has electrical coils contained within cooling fluid bath and second cooling fluid passed between heat exchange surfaces for cooling fluid bath and power semiconductors
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Take-up device
DE19843386C1
Uninterruptible power supply with electrical machine and flywheel for bridging mains dropouts, esp. of short duration, is of particular simple design
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Emergency current supply method using electromechanical energy converter e.g. for submarine
