GE L90 User Manual

L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL i
L90 Line Current Differential System
Abbreviations
Abbreviati ons
AAmpere
AC Alternating Current
A/D Analog to Digital
AE Accidental Energization, Application Entity
AMP Ampere
ANG Angle
ANSI American National Standards Institute
AR Automatic Reclosure
ARP Address Resolution Protocol
ASDU Application-layer Service Data Unit
ASYM Asymmetry
AUTO Automatic
AUX Auxiliary
AVG Average
AWG American Wire Gauge
BCS Best Clock Selector
BER Bit Error Rate
BF Breaker Fail
BFI Breaker Failure Initiate
BKR Breaker
BLK Block
BLKG Blocking
BNC Bayonet Neill-Concelman
BPNT Breakpoint of a characteristic
BRKR Breaker
CA Certificate Authority
CAP Capacitor
CC Coupling Capacitor
CCVT Coupling Capacitor Voltage Transformer
CFG Configure / Configurable
.CFG Filename extension for oscillography files
CHK Check
CHNL Channel
CID Configured IED Description
CLS Close
CLSD Closed
CMND Command
CMPRSN Comparison
CO Contact Output
COM Communication
COMM Communications
COMP Compensated, Comparison
CONN Connection
CONT Continuous, Contact
CO-ORD Coordination
CPU Central Processing Unit
CRC Cyclic Redundancy Code/Check
CRL Certificate Revocation List
CRT, CRNT Current
CSA Canadian Standards Association
CT Current Transformer
CVT Capacitive Voltage Transformer
D/A Digital to Analog
DC (dc) Direct Current
DCE Data Communications Equipment
DCS Distributed Control System
DD Disturbance Detector
DFLT Default
DGNST Diagnostics
DIFF Differential
DIR Directional
DISCREP Discrepancy
DIST Distance
DMD Demand
DNP Distributed Network Protocol
DPO Dropout
DPS Double-Point Status
DSP Digital Signal Processor
DST Daylight Savings Time
dt Rate of Change
DTT Direct Transfer Trip
DUTT Direct Under-reaching Transfer Trip
EGD Ethernet Global Data
ENCRMNT Encroachment
EPRI Electric Power Research Institute
.EVT Filename extension for event recorder files
EXT Extension, External
F Field
FAIL Failure
FD Fault Detector
FDH Fault Detector high-set
FDL Fault Detector low-set
FLA Full Load Current
FO Fiber Optic
FPGA Field-programmable Gate Array
FREQ Frequency
FSK Frequency-Shift Keying
FTP File Transfer Protocol
FxE FlexElement™
FWD Forward
Glossary

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