Abbreviations, and Acronyms
IEEE
Institute of Electrical and Electronics Engineers
IG
Earth current protection - Stage
IG
Ground current
IG
Fault current
IGnom
Nominal ground current
IH1
1st harmonic
IH2
Module Inrush
IH2
2nd harmonic
in.
Inch
incl.
Include, including
InEn
Inadvertent Energization
Info.
Information
Interl.
Interlocking
Intertripping
Intertripping
INV
Inverse characteristic (The tripping time will be calculated depending on the height of the
current)
IR
Calculated ground current
IRIG
Input for time synchronization (Clock)
IRIG-B
IRIG-B-Module
IT
Thermal Characteristic
IX
4th measuring input of the current measuring assembly group (either ground or neutral
current)
J
Joule
kg
Kilogram
kHz
Kilohertz
kV
Kilovolt(s)
kVdc or kVDC
Kilovolt(s) direct current
l/ln
Ratio of current to nominal current.
L1
Phase A
L2
Phase B
L3
Phase C
lb-in
Pound-inch
LED
Light emitting diode
LINV
Long time inverse tripping characteristic
LoE-Z1
Loss of Excitation
LoE-Z2
Loss of Excitation
Logics
Logic
LOP
Loss of Potential
LV
Low voltage
LVRT
Low Voltage Ride Through
m
Meter
mA
Milliampere(s), Milliamp(s)
man.
Manual
max.
Maximum
meas
Measured
min.
Minimum
645
MRU4
DOK-HB-MRU4-2E
