Siemens UL 489 - Page 182

9 – 80
Setpoints
The setpoint function can be used to signal or record special events in the power system.
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:
- TD400 and the software "powerconfig"
- the COM modules with a PC with the software “powerconfig” installed  (page 29-2)
- the graphical display (ETU776).
Parameter Range Delay
Phase overcurrent 30 - 10000 A 0 - 255 sec.
Ground overcurrent 30 - 12000 A 0 - 255 sec.
Neutral overcurrent 30 - 10000 A 0 - 255 sec.
phase current unbalance* 5 - 50% 0 - 255 sec.
current demand 30 - 10000 A 0 - 255 sec.
undervoltage 100 - 1100 V 0 - 255 sec.
phase voltage unbalance* 5 - 50% 0 - 255 sec.
overvoltage 100 - 1100 V 0 - 255 sec.
overpower in normal direction 1 - 12000 kW 0 - 255 sec.
KW reverse 1 - 12000 kW 0 - 255 sec.
KW demand 1 - 12000 kW 0 - 255 sec.
KVA demand 1 - 12000 kVA 0 - 255 sec.
KVAR demand 1 - 12000 kVar 0 - 255 sec.
KVAR consumed 1 - 12000 kVar 0 - 255 sec.
KVAR delivered 1 - 12000 kVar 0 - 255 sec.
KVA 1 - 12000 kVA 0 - 255 sec.
overfrequency 40 - 70 Hz 0 - 255 sec.
underfrequency 40 - 70 Hz 0 - 255 sec.
Under-PF (power factor) -0.001 - 0.001 0 - 255 sec.
Over-PF (power factor) -0.001 - 0.001 0 - 255 sec.
current THD 3 - 50% 0 - 255 sec.
voltage THD 3 - 50% 0 - 255 sec.
crest factor 1 - 2.55 0 - 255 sec.
form factor 1 - 2.55 0 - 255 sec.