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Glossary Chapter 14
Glossary
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 fibre 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 Comittee
IEC 60044-6 IEC Standard, Instrument transformers – Part 6: Requirements for pro-
tective current transformers for transient performance
IEC 60870-5-103 Communication standard for protective equipment. A serial master/slave
protocol for point-to-point communication
IEC 61850 Substation Automation Communication Standard
IEEE Institute of Electrical and Electronics Engineers
IEEE 802.12 A network technology standard that provides 100 Mbits/s on twisted-pair
or optical fiber cable
IEEE P1386.1 PCI Mezzanine Card (PMC) standard for local bus modules. References
the CMC (IEEE P1386, also known as Common Mezzanine Card) stan-
dard for the mechanics and the PCI specifications from the PCI SIG
(Special Interest Group) for the electrical EMF Electro Motive Force.
EMF Electro Motive Force
IED Intelligent Electronic Device
I-GIS Intelligent gas insulated switchgear
IOM Binary Input/Output module
Instance When several occurrences of the same function are available in the IED
they are referred to as instances of that function. One instance of a func-
tion is identical to another of the same kind but will have a different num-
ber in the IED user interfaces. The word instance is sometimes defined
as an item of information that is representative of a type. In the same
way an instance of a function in the IED is representative of a type of
function.
IP 1. Internet protocol. The network layer for the TCP/IP protocol suite
widely used on Ethernet networks. IP is a connectionless, best-effort
packet switching protocol. It provides packet routing, fragmentation and
re-assembly through the data link layer.
2. Ingression protection according to IEC standard
IP 20 Ingression Protection, According to IEC standard, level 20
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