Settings For Each Step (X = 1-4) - ABB REB670 Applications Manual

Section 7
Current protection
7.2.3.1
176
2ndHarmStab: Operate level of 2
current. The setting range is 5-100% of IBase in steps of 1%. Default setting is 20%.
HarmRestrainx: Disabled/Enabled, enables blocking from harmonic restrain.

Settings for each step (x = 1-4)

Characteristx: Selection of time delay characteristic for step x. Definite time delay and
different types of inverse time delay characteristics are available according to table 28.
Table 28: Inverse time delay characteristics
Curve name
ANSI Extremely Inverse
ANSI Very Inverse
ANSI Normal Inverse
ANSI Moderately Inverse
ANSI/IEEE Definite time
ANSI Long Time Extremely Inverse
ANSI Long Time Very Inverse
ANSI Long Time Inverse
IEC Normal Inverse
IEC Very Inverse
IEC Inverse
IEC Extremely Inverse
IEC Short Time Inverse
IEC Long Time Inverse
IEC Definite Time
User Programmable
ASEA RI
RXIDG (logarithmic)
The different characteristics are described in the "Technical reference manual".
Ix>: Operation phase current level for step x given in % of IBase.
tx: Definite time delay for step x. Used if definite time characteristic is chosen. Setting
range: 0.000-60.000 s in step of 0.001 s. Note that the value set is the time between
activation of the start and the trip outputs.
kx: Time multiplier for the dependent (inverse) characteristic.
nd
harmonic current restrain set in % of the fundamental
1MRK 505 337-UUS -
Application manual