Section 5 Glossary
100BASE-FX A physical medium defined in the IEEE 802.3 Ethernet
standard for local area networks (LANs) that uses fiber
optic cabling
ANSI American National Standards Institute
AVR Automatic voltage regulator
BI/O Binary input/output
BIO Binary input and output
CB Circuit breaker
COMTRADE Common format for transient data exchange for power
systems. Defined by the IEEE Standard.
Connectivity
package
A collection of software and information related to a
specific protection and control IED, providing system
products and tools to connect and interact with the IED
CPU Central processing unit
CT Current transformer
DC 1. Direct current
2. Disconnector
3. Double command
DFT
Discrete Fourier transform
DNP3 A distributed network protocol originally developed by
Westronic. The DNP3 Users Group has the ownership
of the protocol and assumes responsibility for its
evolution.
DT
Definite time
EF Earth fault
EMC Electromagnetic compatibility
Ethernet A standard for connecting a family of frame-based
computer networking technologies into a LAN
GCB 1. GOOSE control block
2. Generator circuit breaker
GOOSE Generic Object-Oriented Substation Event
HMI Human-machine interface
HW Hardware
1MRS757582 C Section 5
Glossary
REG630 55
Application Manual
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