ABB RELION REX640 - 4.5.1.8 Signals; PHPTOV Input signals; PHPTOV Output signals; 4.5.1.9 PHPTOV Settings

It is essential to provide power frequency overvoltage protection, in the form of
time delayed element, either IDMT or DT to prevent equipment damage.
4.5.1.8 Signals
PHPTOV Input signals
Table 782: PHPTOV Input signals
Name Type Default Description
U3P SIGNAL - Three-phase voltages
BLOCK BOOLEAN 0=False Block signal for acti-
vating the blocking
mode
PHPTOV Output signals
Table 783: PHPTOV Output signals
Name Type Description
OPERATE BOOLEAN Operate
START BOOLEAN Start
4.5.1.9 PHPTOV Settings
Table 784: PHPTOV Group settings (Basic)
Parameter
Values (Range) Unit Step Default Description
Start value 0.05...1.60 xUn 0.01 1.10 Start value
Time multiplier 0.025...15.000 0.005 1.000 Time multiplier
in IEC/ANSI IDMT
curves
Operate delay time 40...300000 ms 10 40 Operate delay time
Operating curve
type
5=ANSI Def. Time
15=IEC Def. Time
17=Inv. Curve A
18=Inv. Curve B
19=Inv. Curve C
20=Programmable
15=IEC Def. Time Selection of time
delay curve type
Table 785: PHPTOV Group settings (Advanced)
Parameter
Values (Range) Unit Step Default Description
Type of reset curve
1=Immediate
2=Def time reset
1=Immediate Selection of reset
curve type
Type of time reset
1=Freeze Op timer
2=Decrease Op tim-
er
1=Freeze Op timer Selection of time
reset
Protection functions 1MRS759142 F
856 REX640
Technical Manual