User Manual

3UG4641 cos phi and active current monitoring relay
12.4 Operation
3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
285
12.4 Operation
Parameters
Parameterization of the devices is possible locally using the display and the three keys.
Parameter information
The table below shows the settable parameter information of the 3UG4641 cos phi and
active current monitoring relays:
Table 12- 2 Parameter information, 3UG4641 cos phi and active current monitoring relay with digital setting
Setting range
Menu
level
Parameters
Minimum value Maximum value
Increment Factory setting
"RUN" Threshold for undershoot (I
res
▼) 0.2 A or OFF 10 A 0.1 A 1 A
"RUN" Threshold for overshoot (I
res
▲) 0.2 A 10 A or OFF 0.1 A 3 A
"RUN" Threshold for undershoot (φ▼) 0.1 or OFF 0,99 0,01 0,2
"RUN" Threshold for overshoot (φ▲) 0,1 0.99 or OFF 0,01 0,5
"SET" Hysteresis (Hyst) 0.1 A 2 A 0.1 mA 0.5 A
"SET" ON-delay time (onDel) 0 s 99 s 1 s Deactivated
(0 s)
"SET" Tripping delay time (Del) 0.1 s 20 s 0.1 s 0.1 s
"SET" Reset response (Mem) no = Autoreset yes = Hand-RESET -- no = Autoreset
"SET" Relay switching behavior
(closed-circuit principle NC /
open-circuit principle NO)
NC or NO -- NC
Note
The monitoring mode "Overshoot" or "Undershoot" is defined with the setting OFF at the
threshold for undershoot or overshoot.
The parameters are described in Chapter "Parameters (Page 351)."
Menu-based operation is described in Chapter "Menu-based operation (Page 36)."