DSP Digital signal processor
DTT Direct transfer trip scheme
EHV network Extra high voltage network
EIA Electronic Industries Association
EMC Electro magnetic compatibility
EMF Electro motive force
EMI Electro magnetic interference
EnFP End fault protection
ESD Electrostatic discharge
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
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
GI General interrogation command
GIS Gas insulated switchgear
GOOSE Generic object oriented substation event
GPS Global positioning system
GSM GPS time synchronization module
HDLC protocol High level data link control, protocol based on the HDLC
standard
HFBR connector
type
Plastic fiber connector
HMI Human machine interface
HSAR High speed auto reclosing
HV High voltage
HVDC High voltage direct current
IDBS Integrating dead band supervision
IEC International Electrical Committee
IEC 60044-6 IEC Standard, Instrument transformers – Part 6: Requirements
for protective current transformers for transient performance
Section 15
Glossary
RET 670 Operator's manual
1MRK504049-UEN rev. D
87
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