ABB REC650 Commissioning Manual

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Contents

ABB REC650 Commissioning Manual Manual pdf 82 page image

3.1. U-Bus = 100% UBase and f-bus = 50.25 Hz3.2. Verify that the function does not operate when frequency difference isabove limit.4. Repeat with different frequency differences for example, 100 mHz with f-busnominal and line leading and for example 20 mHz (or just aboveFreqDiffMin) to verify that independent of frequency difference the closingpulse occurs within 2 degrees.5. Verify that the closing command is not issued when the frequency differenceis less than the set value FreqDiffMin.6.7.1.2 Testing the synchrocheck checkDuring the test of SESRSYN for a single bay arrangement, these voltage inputs areused:U-Line UL1, UL2 or UL3 voltage input on the IEDU-Bus Bus voltage input on the IEDTesting the voltage differenceSet the voltage difference at 15% UBase on the local HMI, and the test shouldcheck that operation is achieved when the voltage difference UDiffSC is lower than15% UBase.The settings used in the test shall be final settings. The test shall be adapted to sitesetting values instead of values in the example below.Test with no voltage difference between the inputs.Test with a voltage difference higher than the set UDiffSC1. Apply voltages U-Line (for example) = 80% UBase and U-Bus = 80% UBase.2. Check that the AUTOSYOK and MANSYOK outputs are activated.3. The test can be repeated with different voltage values to verify that thefunction operates within the set UDiffSC. Check with both U-Line and U-Busrespectively lower than the other.4. Increase the U-Bus to 110% UBase, and the U-Line = 90% UBase and alsothe opposite condition.5. Check that the two outputs for manual and auto synchronism are not activated.Testing the phase angle differenceThe phase angle differences PhaseDiffM and PhaseDiffA respectively are set totheir final settings and the test should verify that operation is achieved when thephase angle difference is lower than this value both leading and lagging.Test with no voltage differenceSection 6 1MRK 511 248-UEN -Testing functionality74Commissioning Manual