Siemens UL 1066 Operating Instructions Manual page 154

Extended metering functions
The metering function PLUS is used to implement extended protective functions beyond the functionality of the trip units.
Parameter
Undervoltage
Overvoltage
Active power in normal direction
Active power in reverse direction
Overfrequency
Underfrequency
1)
Phase current unbalance
1)
Phase voltage unbalance
Phase rotation
Pickup THD current
Pickup THD voltage
1)
ANSI definition:
Ratio of the largest difference between the phases and the average of all 3 phases.
If one of these parameters exceeds or falls below its default settings, the trip unit is tripped after the adjusted delay via the c.
The parameters can be adjusted via:
- the test socket with the BDA
- the PROFIBUS-DP
- the MODBUS
- the graphical display (ETU776)
9 – 74
Range
100 - 1100 V
200 - 1200 V
1 - 12000 kW
1 - 12000 kW
40 - 70 Hz
40 - 70 Hz
5 - 50%
5 - 50%
3 - 50%
3 - 50%
Delay
0 - 15 sec.
0 - 15 sec.
0 - 15 sec.
0 - 15 sec.
0 - 15 sec.
0 - 15 sec.
0 - 15 sec.
0 - 15 sec.
5 - 15 sec.
5 - 15 sec.