EMI Electromagnetic interference
EnFP End fault protection
EPA Enhanced performance architecture
ESD Electrostatic discharge
F-SMA Type of optical fiber connector
FAN Fault number
FCB Flow control bit; Frame count bit
FOX 20 Modular 20 channel telecommunication system for speech, data and
protection signals
FOX 512/515 Access multiplexer
FOX 6Plus Compact time-division multiplexer for the transmission of up to seven
duplex channels of digital data over optical fibers
FPN Flexible product naming
FTP File Transfer Protocol
FUN Function type
G.703 Electrical and functional description for digital lines used by local
telephone companies. Can be transported over balanced and
unbalanced lines
GCM Communication interface module with carrier of GPS receiver module
GDE Graphical display editor within PCM600
GI General interrogation command
GIS Gas-insulated switchgear
GOOSE Generic object-oriented substation event
GPS Global positioning system
GSAL Generic security application
GSE Generic substation event
HDLC protocol High-level data link control, protocol based on the HDLC standard
HFBR connector type Plastic fiber connector
HLV circuit Hazardous Live Voltage according to IEC60255-27
HMI Human-machine interface
HSAR High speed autoreclosing
HSR High-availability Seamless Redundancy
HV High-voltage
HVDC High-voltage direct current
IDBS Integrating deadband supervision
IEC International Electrical Committee
IEC 60044-6 IEC Standard, Instrument transformers – Part 6: Requirements for
protective current transformers for transient performance
IEC 60870-5-103 Communication standard for protection equipment. A serial master/
slave protocol for point-to-point communication
IEC 61850 Substation automation communication standard
IEC 61850–8–1 Communication protocol standard
1MRK 505 370-UEN D Section 22
Glossary
Busbar protection REB670 463
Application manual
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