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Abbreviations
1.4
Table 1.4.1 below lists the abbreviations and acronyms used in this document.
Table 1.4.1 List of abbreviations and acronyms
Abbreviation
Description
ACK
Acknowledgement
Annunciator
ANN
BCU
Bay Control Unit
Bay Control and Protection Unit
BCPU
BIO
Binary Input Output
CB
Circuit Breaker
CPU
Central Processing Unit
DS
Disconnector Switch
DVD
Digital Versatile Disk
ES
Earthing Switch
Ethernet Switch
ESW
EWS
Engineering Workstation
Front End Processor
FEP
GIS
Gas Insulated Switchgear
GPS
Global Positioning System
GUI
Graphical User Interface
GW
Gateway
HDD
Hard Disk Drive
HMI
Human Machine Interface
Intelligent Electronic Device
IED
IFU
Interface Unit
LAN
Local Area Network
LCD
Liquid Crystal Display
LCP
Local Control Panel for GIS
LDC
Load Dispatch Centre
LED
Light Emitting Diode
NA
Not Applicable
OS
Operating System
OWS
Operator Workstation
PC
Personal Computer
Programmable Logic Controller
PLC
15
6F2M2000
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