82 6LE008146B
Measurement functions
6.3 Min/max measurements
The sentinel Energy trip unit calculates the real-time maximum and minimum values reached
since the last reset.
Certain values are time stamped.
All of these values take into account the positive and negative values.
For example, if the previous maximum value was 25 and a value of -30 is measured, the new
maximum value becomes -30.
Monitored value
Time stamp 3-pole
version
4-pole
version
Current
Maximum instantaneous - for I1, I2 and I3
-
■
-
- for I1, I2, I3 and IN
- -
■
since reset - for each phase
■ ■ ■
- for IN
■
-
■
- for current maximums
- for minimum of I1, I2 and I3
- for average current
- for IG
-
■ ■
- for IN unbalance
- -
■
- for unbalance per phase
- for maximum unbalance
-
■ ■
Minimum instantaneous - for I1, I2 and I3
-
■ ■
since reset - for each phase
-
■ ■
- for IN
- -
■
- for current maximums
- for minimum of I1, I2 and I3
- for average current
- for IG
-
■ ■
- for IN unbalance
- -
■
- for unbalance per phase
- for maximum unbalance
-
■ ■
Voltage
Maximum instantaneous - of three single voltages
- -
■
- of three phase voltages
-
■ ■
since reset - of each single voltage
■
-
■
- of each three phase voltage
■ ■ ■
- for unbalance of each single
voltage
- for maximum single phase
unbalances
- -
■
- for unbalance of each three
phase voltage
- for minimums of three phase
unbalances
- for average voltage
-
■ ■
Minimum instantaneous - of three single voltages
- -
■
- of three phase voltages
-
■ ■