ABB RELION 670 Series Applications Manual

Also see for Relion 670 series: Quick start guide Quick start guide Application guide Application guide Commissioning manual

Contents

ABB RELION 670 Series Applications Manual Manual pdf 222 page image

15.14.4 Setting example GUID-E7070CF6-B44B-4799-BE18-5C75B9FE2A87 v1Let us consider a comparison is to be done between current magnitudes in the range of 90 to 110with nominal rating is 100 and the order is kA.For the above condition the comparator can be designed with settings as follows,EnaAbs =AbsoluteRefSource =SetValueSetValue =100RefPrefix =KiloEqualBandHigh =5.0 % of reference valueEqualBandLow =5.0 % of reference valueOperationThe function will set the outputs for the following conditions,INEQUAL will set when the INPUT is between the ranges of 95 to 105 kA.INHIGH will set when the INPUT crosses above 105 kA.INLOW will set when the INPUT crosses below 95 kA.If the comparison should be done between two current magnitudes then those current signalsneed to be connected to function inputs, INPUT and REF. Then the settings should be adjusted asbelow,EnaAbs =AbsoluteRefSource =REFEqualBandHigh =5.0 % of reference valueEqualBandLow =5.0 % of reference value.Section 15 1MRK 511 364-UUS ALogic216Application manual