GE L30 Instruction Manual

Also see for L30: Communications manual Communications guide Instruction manual Instruction manual Instruction manual

Contents

GE L30 Instruction Manual Manual pdf 6 page image

vi L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUALTABLE OF CONTENTS5.5.4 87L power system .......................................................................................................... 5-1405.5.5 Breakers .............................................................................................................................. 5-1475.5.6 Disconnect switch control .......................................................................................... 5-1535.5.7 FlexCurves .......................................................................................................................... 5-1585.5.8 Phasor Measurement Unit.......................................................................................... 5-1655.6 FlexLogic.............................................................................................................. 5-1855.6.1 FlexLogic operands........................................................................................................ 5-1855.6.2 FlexLogic rules.................................................................................................................. 5-1975.6.3 FlexLogic evaluation...................................................................................................... 5-1975.6.4 FlexLogic example.......................................................................................................... 5-1985.6.5 FlexLogic equation editor............................................................................................ 5-2035.6.6 FlexLogic timers............................................................................................................... 5-2035.6.7 FlexElements ..................................................................................................................... 5-2035.6.8 Non-volatile latches....................................................................................................... 5-2075.7 Grouped elements ............................................................................................. 5-2085.7.1 Overview ............................................................................................................................. 5-2085.7.2 Setting group 1................................................................................................................. 5-2085.7.3 Line differential elements............................................................................................ 5-2095.7.4 Phase current ................................................................................................................... 5-2145.7.5 Neutral current................................................................................................................. 5-2265.7.6 Ground current ................................................................................................................ 5-2345.7.7 Negative sequence current........................................................................................ 5-2375.7.8 Breaker failure (ANSI 50BF)......................................................................................... 5-2395.7.9 Voltage elements ............................................................................................................ 5-2495.7.10 Supervising elements.................................................................................................... 5-2565.8 Control elements ............................................................................................... 5-2595.8.1 Overview ............................................................................................................................. 5-2595.8.2 Trip bus ................................................................................................................................ 5-2595.8.3 Setting groups .................................................................................................................. 5-2615.8.4 Selector switch................................................................................................................. 5-2625.8.5 Underfrequency (ANSI 81U)........................................................................................ 5-2695.8.6 Frequency rate of change (ANSI 81R).................................................................... 5-2705.8.7 Synchrocheck (ANSI 25) ............................................................................................... 5-2725.8.8 Autoreclose (ANSI 79) .................................................................................................... 5-2785.8.9 Digital elements............................................................................................................... 5-2845.8.10 Digital counters................................................................................................................ 5-2875.8.11 Monitoring elements ..................................................................................................... 5-2895.9 Inputs/outputs ................................................................................................... 5-3045.9.1 Contact inputs .................................................................................................................. 5-3045.9.2 Virtual inputs ..................................................................................................................... 5-3065.9.3 Contact outputs............................................................................................................... 5-3075.9.4 Virtual outputs.................................................................................................................. 5-3105.9.5 Resetting ............................................................................................................................. 5-3105.9.6 Direct inputs and outputs ........................................................................................... 5-3115.10 Transducer inputs/outputs.............................................................................. 5-3135.10.1 DCmA inputs...................................................................................................................... 5-3135.10.2 RTD inputs .......................................................................................................................... 5-3145.10.3 DCmA outputs .................................................................................................................. 5-3155.11 Testing ................................................................................................................. 5-3195.11.1 Test mode function ........................................................................................................ 5-3195.11.2 Test mode forcing........................................................................................................... 5-3195.11.3 Phasor Measurement Unit test values.................................................................. 5-3205.11.4 Force contact inputs ..................................................................................................... 5-3215.11.5 Force contact outputs .................................................................................................. 5-3215.11.6 Channel tests .................................................................................................................... 5-322