ABB REL 551-C1*2.5 Technical Reference Manual page 19

Protect line differential protection terminal
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10
Introduction to the technical reference manual
INAMPL
INSTMAGN
INSTNAME
IOM
IPOSIM
IPOSRE
IP 20
IP 40
IP 54
Ip>block
IRVBLK
IRV
ITU
k2
kForIEEE
LAN
LIB 520
LCD
LDCM
LDD
LED
LNT
LON
MAGN
MCB
MCM
MIM
MIP
MPPS
MPM
MV
Present magnitude of residual current
Magnitude of instantaneous value
Instance name in signal matrix tool
Binary Input/Output module
Imaginary part of positive sequence current
Real component of positve sequence current
Enclosure protects against solid foreign objects 12.5mm in diameter and
larger but no protection against ingression of liquid according to
IEC60529. Equivalent to NEMA type 1.
Enclosure protects against solid foreign objects 1.0mm in diameter or
larger but no protection against ingression of liquid according to
IEC60529.
Degrees of protection provided by enclosures (IP code) according to
IEC 60529. Dust protected. Protected against splashing water. Equiva-
lent to NEMA type 12.
Block of the function at high phase current in percentage of base
Block of current reversal function
Activation of current reversal logic
International Telecommunications Union
Time multiplier in IDMT mode
Time multiplier for IEEE inverse type curve
Local area network
Liquid chrystal display
Line differential communication module
Local detection device
Light emitting diode
LON network tool
Local operating network
Magnitude of deadband value
Miniature circuit breaker
Mezzanine carrier module
Milliampere Input Module
Main processing module
Medium voltage
Chapter 1
Introduction

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