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Introduction to the installation and
commissioning manual
HystAbs
HystRel
IBIAS
IDBS
IDMT
IDMTtmin
IdMin
IDNSMAG
Idunre
ICHARGE
IEC
IEC 186A
IEC 60044-6
IEC 60870-5-103
IEEE
IEEE 802.12
IEEE P1386.1
EMF
IED
I-GIS
IL1RE
IL1IM
IminNegSeq
INAMPL
INSTMAGN
INSTNAME
IOM
IPOSIM
IPOSRE
IP 20
Overexcitation level of absolute hysteresis as a percentage
Overexcitation level of relative hysteresis as a percentage
Magnitude of the bias current common to L1, L2 and L3
Integrating dead-band supervision
Minimum inverse delay time
Inverse delay minimum time in seconds
Operational restrictive characteristic, section 1 sensitivity, multiple Ibase
Magnitude of negative sequence differential current
Unrestrained prot. limit multiple of winding1 rated current
Amount of compensated charging current
International Electrical Committee
IEC Standard, Instrument transformers – Part 6: Requirements for pro-
tective current transformers for transient performance
Communication standard for protective equipment. A serial master/slave
protocol for point-to-point communication
Institute of Electrical and Electronics Engineers
A network technology standard that provides 100 Mbits/s on twisted-pair
or optical fiber cable
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
Electro magnetic force
Intelligent electronic device
Intelligent gas insulated switchgear
Real current component, phase L1
Imaginary current component, phase L1
Negative sequence current must be higher than this to be used
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.
Chapter 1
Introduction
7
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