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The DER2 is a digital automatic voltage regulator for synchronous alternators, designed for stand alone working and calibration; the connectors for connection to and from the power generator and to the supervision unit are located on the DER2 regulator. DER2 includes natively the USB port for computer remote monitoring and control and the HDR module. The High Dynamic Response allows a faster reduction of excitation current than conventional regulators and consequently a smaller transient overvoltage as a result of load removal. The supervision unit can be made up of a personal computer, another “synoptic” device or both; it does not have the function of controlling the system in real time, but allows programming and visualisation of all operational parameters of the DER2 through the embedded USB port
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