SACE Emax DC: Direct Current Applications - VAE ProSys sro
SACE Emax DC: Direct Current Applications - VAE ProSys sro
SACE Emax DC: Direct Current Applications - VAE ProSys sro
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Protection Releases and trip CurvesPR122/<strong>DC</strong>Power SupplyThe PR122/<strong>DC</strong> release requires an auxiliary power supply; the power supply could be derived fromthe Measurement Module PR120/V always supplied as standard in PR122/<strong>DC</strong> (only for power supply,no voltage and power based protection/measurements available on PR122/<strong>DC</strong>.PR122/<strong>DC</strong> PR120/D-M PR120/KAuxiliary power supply 24 V <strong>DC</strong> ± 20% from PR122/<strong>DC</strong> from PR122/<strong>DC</strong>(galvanically insulated)Maximum ripple 5%Inrush current @ 24V~10 A for 5 msRated power @ 24V ~3 W +1 W +1 WOn request it is possible to supply the PR122/<strong>DC</strong> with a special version of Measurements Modulesuitable for very low <strong>DC</strong> rated voltage 24/48V <strong>DC</strong>, called PR120/LV, typically railway and mine installations.Power supply fromMeasurement ModulePR120/VPR120/LV (24-48 V <strong>DC</strong>)Minimum Voltage ThresholdEnabling Unit PR122/<strong>DC</strong>60 V8 V10ABB <strong>SACE</strong>
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