GE L90 Instruction Manual

Also see for L90: Communications manual Communications guide Instruction manual Instruction manual Instruction manual

Contents

ii L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUALINDEXAuxiliary overvoltageFlexLogic operands .......................................................................5-191logic ......................................................................................................5-308settings ...............................................................................................5-307specifications ..................................................................................... 2-37Auxiliary undervoltageFlexLogic operands .......................................................................5-191logic diagram ...................................................................................5-307settings ...............................................................................................5-306specifications ..................................................................................... 2-36Auxiliary voltage channel ............................................................... 3-15Auxiliary voltage metering ............................................................ 6-19AWG wire size ................................................... 3-14, 3-35, 3-39, 3-42BBack up settings ...................................................................... 5-60, 11-8Banks ...............................................................................5-8, 5-137, 5-138Batterydisposal ..............................................................................................11-26failure message ................................................................................... 7-9replace ................................................................................................11-24Baud rate ................................................................................................. 5-43BKR RESTRIKE ELEMENT error message ................................ 7-13Blinking alarm ....................................................................................... 4-35BLOCK setting .......................................................................................... 5-5Blocking schemeapplication of settings ................................................................... 8-19FlexLogic operands .......................................................................5-193logic diagram ...................................................................................5-391settings ...............................................................................................5-388Blocking1 schemelogic diagram ...................................................................................5-393settings ...............................................................................................5-392Breaker arcing currentactual values ...................................................................................... 6-33clearing ........................................................................................ 5-42, 7-2FlexAnalogs ............................................................................ A-15, A-26FlexLogic operands .......................................................................5-191logic diagram ...................................................................................5-355measurement ..................................................................................5-354settings ...............................................................................................5-353specifications ..................................................................................... 2-38Breaker controlcontrol of two breakers ................................................................. 4-60dual breaker logic ..........................................................................5-153FlexLogic operands .......................................................................5-192settings ...............................................................................................5-150with IEC 61850 .................................................................................. 5-90Breaker failuredescription ........................................................................................5-294determination ..................................................................................5-294FlexLogic operands .......................................................................5-191logic diagram .................................................................... 5-298, 5-299main path sequence ....................................................................5-295settings ................................................................................ 5-292, 5-296specifications ..................................................................................... 2-38Breaker flashoverFlexLogic operands ...................................................................... 5-191logic diagram .................................................................................. 5-360settings ............................................................................................... 5-356specifications ..................................................................................... 2-38Breaker restrikeFlexLogic operands ...................................................................... 5-192logic diagram .................................................................................. 5-363settings ............................................................................................... 5-361specifications ..................................................................................... 2-38Breaker-and-a-half scheme ............................................................5-6Brightness ................................................................................................ 5-27Broken conductorFlexLogic operands ...................................................................... 5-192settings ............................................................................................... 5-373CC37.94 communications ..................................................... 3-44, 3-47Cannot log in .............................................................................................2-9Caution symbol in Offline Window ............................................ 4-70CE certification ...................................................................................... 2-53Certification ............................................................................................ 2-53Changes ...................................................................................................... D-1Channelasymmetry settings ..................................................................... 5-145banks .....................................................................................5-137, 5-138communication ................................................................................. 3-33monitor .....................................................................................................2-7Channel testsactual values .........................................................................................6-7commands .................................................................................5-42, 7-2procedure ...............................................................................................9-1settings ............................................................................................... 5-432Charging current compensation ............................................. 5-143CID file, SCD file ............................................................ 5-75, 5-77, 5-78CID files ......................................................................................... 3-65, 5-60import ................................................................................................. 11-12import preferences .......................................................................... 11-9Circuit monitoring applications ................................................ 5-348Cleaning .................................................................................................... 2-53Clearfiles and records ............................................................................ 11-29LEDs ..................................................................................................... 5-421relay records using IEC 61850 ................................................... 5-95relay records using settings ........................................................ 5-41security logs ...........................................................................................7-6Clockactual values .........................................................................................6-9graphical front panel format ...................................................... 5-31IRIG-B ..................................................................................................... 3-32PTP ........................................................................................................ 5-109set on front panel ................................................................................7-3settings ............................................................................................... 5-108synchronize several devices .................................................... 5-109