ABB REB670 Applications Manual page 171

1MRK 505 337-UUS -
Application manual
Characteristx: Selection of time characteristic for step x. Definite time delay and different
types of inverse time characteristics are available according to table 26.
Table 26: Inverse time 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 Technical reference manual.
I1>MinEd2Set: Minimum settable operating phase current level for step 1 in % of IBase,
for 61850 Ed.2 settings
I1>MaxEd2Set: Maximum settable operating phase current level for step 1 in % of IBase,
for 61850 Ed.2 settings
I2>MinEd2Set: Minimum settable operating phase current level for step 2 in % of IBase,
for 61850 Ed.2 settings
I2>MaxEd2Set: Maximum settable operating phase current level for step 2 in % of IBase,
for 61850 Ed.2 settings
I3>MinEd2Set: Minimum settable operating phase current level for step 3 in % of IBase,
for 61850 Ed.2 settings
Section 7
Current protection
165