ABB RET650 Applications Manual page 385

1MRK 504 169-UEN A
Transformer protection RET650 2.2 IEC
Application manual
I-GIS
IOM
Instance
IP
IP 20
IP 40
IP 54
IRF
IRIG-B:
ITU
LAN
LIB 520
LCD
LDCM
LDD
LED
LNT
LON
MCB
MCM
MPM
MVAL
MVB
NCC
Intelligent gas-insulated switchgear
Binary input/output module
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 function is identical to
another of the same kind but has a different number 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.
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 reassembly
through the data link layer.
2. Ingression protection, according to IEC 60529
Ingression protection, according to IEC 60529, level 20
Ingression protection, according to IEC 60529, level 40
Ingression protection, according to IEC 60529, level 54
Internal failure signal
InterRange Instrumentation Group Time code format B,
standard 200
International Telecommunications Union
Local area network
High-voltage software module
Liquid crystal display
Line data communication module
Local detection device
Light-emitting diode
LON network tool
Local operating network
Miniature circuit breaker
Mezzanine carrier module
Main processing module
Value of measurement
Multifunction vehicle bus. Standardized serial bus
originally developed for use in trains.
National Control Centre
Section 20
Glossary
379