ABB Switzerland Ltd REG 316*4 1MRB520049-Uen / Rev. F
3-80
D. Inverse time overcurrent settings - Current-Inv
Summary of parameters:
Text Unit Default Min. Max. Step
ParSet4..1 P1 (Select)
Trip 00000000
c-Setting 1.00 (Select)
k1-Setting s 013.5 0.01 200.0 0.01
I-Start IB 1.10 1.00 4.00 0.01
t-min s 00.00 0.0 10.0 0.1
NrOfPhases 1 1 3 2
CurrentInp CT/VT-Addr 0
IB-Setting IN 1.00 0.045 2.50 0.01
BlockInp BinaryAddr F
Trip SignalAddr ER
Start SignalAddr ER
Explanation of parameters:
ParSet 4..1
Parameter for determining in which set of parameters a par-
ticular function is active (see Section 5.11.).
Trip
defines the tripping channel activated by the tripping O/P of
the function (matrix tripping logic).
c-Setting
Setting for the exponential factor determining the shape of
the operating characteristic according to BS 142 or for se-
lecting the RXIDG characteristic.
k1-Setting
Constant determining the parallel shift of the characteristic
(time grading).
I-Start
Pick-up current at which the characteristic becomes effective.
t-min
Definite minimum tripping time.
NrOfPhases
defines the number of phases measured.