This requires a circuit consisting of about ten components, which you can build up on a piece of stripboard. Your best option for powering devices that need clean DC is a low dropout (LDO) regulator, powered from a large smoothing capacitor that's fed from your "converter" via a diode. If you are only loading it lightly, and/or if one or more of your loads includes a large capacitor that "smooths out" the voltage in between the camel humps, the voltage you measure on your multimeter will be higher than the specified 12V. The characteristics of the output voltage will depend on what it's connected to. The output voltage consists of a line of camels' humps, not a flat DC voltage, as shown on the right in this picture.Īs the manual says, "equipment limited to operation from pure 12 volt battery power including 12 volt TVs, radios, stereos, unfiltered fluorescent lights - must be connected directly into RV storage battery line, or equipped with filter - as Converters do not produce the "pure" 12 volt DC needed by these items." It's "DC, Captain, but not as we know it". That "converter" is a full-wave rectified power supply without smoothing. Equipment delivery (2018 - 2022): China (transformers and converters, plus the reactive power compensation system), Korea (transformers and converters for magnet power conversion), Russia (busbars, switching equipment), and India (component cooling water system loops).Hi there and welcome to Electronics Point.Infrastructure construction (2016 - 2019): European Domestic Agency Fusion for Energy.Number of converter units: 32 for First Plasma, 44 for full operation.Building dimensions: 150 metres long, 30 metres wide.Total area: 9,400 m² indoor plus 5,700 m² outdoor.Follow all equipment installation/commissioning news on the assembly pages of the ITER website. The Magnet Power Conversion buildings were handed over to the ITER Organization by the European Domestic Agency in March 2019. Housed in the Tokamak Complex are the fast discharge units and switches that offer an alternative path to the huge amount of energy stored in the ITER magnet system (up to 50 gigajoules) in the case of a "quench"-a rare but anticipated event that causes part of the magnet system to lose superconductivity. On the last leg of their journey, the busbars will almost fully occupy two levels of the Diagnostics Building. No fewer than 5 km of bipolar busbars will travel through the Magnet Power Conversion buildings and across 50-metre-long elevated bridges to the Tokamak Complex. Given the intensity of the current, steel-jacketed aluminium bars called "busbars"-actively cooled through a constant flow of pressurized water-replace more traditional cables. Once the current has been "rectified," it can be fed to the magnets. Each one is paired with a large rectifier whose function is to convert the AC current to large DC current. Their role is to bring the voltage down to approximately 1 kV (the precise voltage is determined by the individual magnet system). The converter transformers are each dedicated to a specific magnet system (central solenoid, toroidal field coils, poloidal field coils, correction coils). Thirty-two AC/DC converter units-comprising a transformer, a converter and a busbar section-are planned for First Plasma. First, three very large pulsed power electrical transformers reduce the voltage to 66 kV and 22 kV before the electrical power is fed to the converter transformers outside the Magnet Power Conversion buildings. One hundred and fifty metres in length, densely packed with equipment, the twin buildings are the "stepping stone" between the power arriving at the ITER switchyard at 400 kV, and the ITER magnets, which require power at DC voltages between 0.10 kV and 1.35 kV, depending on their size.īefore it reaches the superconducting magnets, the electrical power from the 400 kV switchyard is stepped down through a cascade of transformations. Two identical buildings on the platform-the Magnet Power Conversion buildings-play the role of adapter. And-like flashlights and smartphones-they will need an "adapter" to convert the alternating current (AC) from ITER's electrical distribution network. Inside and outside, the buildings are packed with equipment.Like a computer or a smartphone, ITER's 10,000 tonnes of superconducting magnets will be powered on direct current (DC). The Magnet Power Conversion buildings play the role of a giant adapter, converting AC power from the grid to DC power that can be used by the ITER magnets.
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