GE L90

viii L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
INDEX
Harmonic content .............................................................................. 6-22
Harmonics
actual values ...................................................................................... 6-22
Harmonics metering
specifications ......................................................................... 2-43, 2-44
Heartbeat messages ............................................................ 5-67, 5-70
Help, getting ..............................................................................................1-2
Home page configuration ............................................................. 5-29
HTTP ..........................................................................................................5-100
port, close ..........................................................................................5-100
Humidity specifications ................................................................... 2-51
Hybrid permissive over-reach transfer trip
see Hybrid POTT
Hybrid POTT
application of settings ................................................................... 8-18
FlexLogic operands .......................................................................5-194
logic diagram ...................................................................................5-388
settings ...............................................................................................5-384
Hysteresis ..............................................................................................5-211
I
IAC curves .............................................................................................5-259
ICD file ............................................................................... 5-75, 5-77, 5-78
IEC 60870-5-103 protocol
explained ...........................................................................................5-103
select protocol ................................................................................... 5-52
settings ...............................................................................................5-103
IEC 60870-5-104 protocol
connections remaining ................................................................. 6-10
port, close ..........................................................................................5-102
select protocol ................................................................................... 5-52
settings ...............................................................................................5-101
IEC 61850 protocol
compatibility with previous release ........................................ 5-58
error messages ................................................................................. 7-10
explained ............................................................................................. 5-57
file transfer .......................................................................................... 5-99
heartbeat messages .......................................................... 5-67, 5-70
IID file ..................................................................................................... 11-8
settings in EnerVista ....................................................................... 5-57
specifications ..................................................................................... 2-48
IEC 61850-90-5
actual values ...................................................................................... 6-26
IEC 61850-90-5 protocol
explained ...........................................................................................5-168
settings ...............................................................................................5-172
IEC CID files ............................................................................................. 5-60
IED setup .................................................................................................. 3-51
IEEE C37.94 communications .......................................... 3-44, 3-47
IEEE curves ............................................................................................5-256
IID file ................................................................................. 3-65, 5-60, 11-8
import preferences ......................................................................... 11-9
Import settings file ............................................................................. 3-65
Import settings from SCD or CID file ......................................11-12
In service indicator ................................................................................7-7
In Service LED ........................................................................................ 3-49
Incompatible device order codes or versions ................. 11-14
Incompatible hardware error ..........................................................7-8
Inputs
AC current specifications ..............................................................2-44
AC currents ....................................................................................... 5-137
AC voltage ........................................................................................ 5-138
AC voltage specifications .............................................................2-44
contact input specifications ........................................................2-44
contact inputs ...................................................................5-413, 5-431
DCmA input specifications ...........................................................2-45
DCmA inputs .......................................................................................3-27
direct inputs ..................................................................................... 5-420
IRIG-B .....................................................................................................3-32
IRIG-B specifications .......................................................................2-45
RTD input specifications ................................................................2-45
RTD inputs ............................................................................................3-27
virtual .................................................................................................. 5-415
Installation ........................................................................................ 3-2, 3-5
activate relay ..................................................................................... 3-49
add UR devices with auto discovery .......................................3-61
communications ...............................................................................3-30
CT inputs ...............................................................................................3-14
front panel ........................................................................................ 11-15
RS485 .....................................................................................................3-31
set relay to Programmed ..............................................................3-49
settings ............................................................................................... 5-135
Instantaneous overcurrent
see Phase, Ground, and Neutral IOCs
Interface
front panel ........................................................................................... 4-14
software ...................................................................................................4-1
Internet access .................................................................................. 5-100
Inter-relay communication ..............................................................2-5
Inter-relay communication specifications ...........................2-49
Inverse time undervoltage .......................................................... 5-302
In-zone transformer settings .................................................... 5-148
IOC
see Phase, Ground, and Neutral IOCs
IP address
enter in software ..............................................................................5-46
enter on front panel ............................................................3-53, 4-38
gateway ................................................................................................5-49
view .........................................................................................................5-46
IRIG-B
connection ...........................................................................................3-32
during start-up ............................................................................... 5-146
error messages ....................................................................................7-9
port on rear panel ............................................................................3-11
specifications .....................................................................................2-45
IRIG-B connection ...............................................................................3-11
ISO standards ........................................................................................2-53
K
Keypad ......................................................................................................4-38