GE L90 User Manual

TABLE OF CONTENTS
L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL vii
5.10.2 RTD inputs...........................................................................................................................5-423
5.10.3 DCmA outputs...................................................................................................................5-425
5.11 Testing..................................................................................................................5-428
5.11.1 Test mode function.........................................................................................................5-428
5.11.2 Test mode forcing ...........................................................................................................5-429
5.11.3 Phasor Measurement Unit test values..................................................................5-429
5.11.4 Force contact inputs......................................................................................................5-431
5.11.5 Force contact outputs...................................................................................................5-431
5.11.6 Channel tests.....................................................................................................................5-432
6 ACTUAL VALUES 6.1 Actual Values menu............................................................................................... 6-1
6.2 Front panel.............................................................................................................. 6-3
6.3 Status .......................................................................................................................6-4
6.3.1 Contact inputs ....................................................................................................................... 6-4
6.3.2 Virtual inputs........................................................................................................................... 6-4
6.3.3 RxGOOSE boolean inputs.................................................................................................. 6-5
6.3.4 RxGOOSE DPS inputs .......................................................................................................... 6-5
6.3.5 Direct inputs............................................................................................................................ 6-5
6.3.6 Contact outputs .................................................................................................................... 6-5
6.3.7 Virtual outputs ....................................................................................................................... 6-6
6.3.8 RxGOOSE status.................................................................................................................... 6-6
6.3.9 RxGOOSE statistics .............................................................................................................. 6-6
6.3.10 Autoreclose ............................................................................................................................. 6-7
6.3.11 Channel tests.......................................................................................................................... 6-7
6.3.12 Digital counters ..................................................................................................................... 6-8
6.3.13 Selector switches.................................................................................................................. 6-9
6.3.14 Flex states................................................................................................................................ 6-9
6.3.15 Ethernet .................................................................................................................................... 6-9
6.3.16 Real time clock synchronizing........................................................................................ 6-9
6.3.17 Remaining connection status.......................................................................................6-10
6.3.18 Parallel Redundancy Protocol (PRP)...........................................................................6-11
6.3.19 TxGOOSE status ..................................................................................................................6-11
6.4 Metering.................................................................................................................6-12
6.4.1 Metering conventions.......................................................................................................6-12
6.4.2 Differential current ............................................................................................................6-16
6.4.3 Sources....................................................................................................................................6-17
6.4.4 Sensitive directional power ...........................................................................................6-23
6.4.5 Synchrocheck.......................................................................................................................6-23
6.4.6 Tracking frequency............................................................................................................6-24
6.4.7 Frequency rate of change..............................................................................................6-24
6.4.8 FlexElements.........................................................................................................................6-24
6.4.9 RxGOOSE analogs ..............................................................................................................6-25
6.4.10 Wattmetric ground fault.................................................................................................6-25
6.4.11 Phasor Measurement Unit .............................................................................................6-25
6.4.12 PMU aggregator..................................................................................................................6-26
6.4.13 Volts per hertz......................................................................................................................6-26
6.4.14 Restricted ground fault....................................................................................................6-27
6.4.15 Transducer inputs and outputs ...................................................................................6-27
6.4.16 Distance..................................................................................................................................6-27
6.5 Records .................................................................................................................. 6-29
6.5.1 Fault reports .........................................................................................................................6-29
6.5.2 Event records .......................................................................................................................6-30
6.5.3 Oscillography........................................................................................................................6-32
6.5.4 Data logger ...........................................................................................................................6-32
6.5.5 Phasor Measurement Unit records............................................................................6-33

GE L90 Specifications

General

Communication	Ethernet, Serial
Mounting	Panel Mount
Frequency	50/60 Hz
Inputs	Digital, Analog
Outputs	Relay
Control	Local, Remote
Communication Interface	IEC 61850, DNP3, Modbus
Protection Functions	Differential, Ground Fault
Standards Compliance	IEC, IEEE