ABB Relion 650 Series Technical Manual page 247

1MRK 506 326-UUS B
Name Values (Range)
t1Min 0.000 - 60.000
TD1 0.05 - 1.10
OperationStep2 Disabled
Enabled
OpMode2 1 out of 3
2 out of 3
3 out of 3
Pickup2 1 - 200
t2 0.000 - 60.000
Table 173: OV2PTOV (59) Non group settings (basic)
Name Values (Range)
GlobalBaseSel 1 - 6
ConnType PhN DFT
PhN RMS
PhPh DFT
PhPh RMS
7.2.6 Monitored data
Table 174: OV2PTOV (59) Monitored data
Name
V_A
V_B
V_C
7.2.7 Operation principle
Two step overvoltage protection OV2PTOV (59) is used to detect high power system voltage.
OV2PTOV (59) has two steps with separate time delays. If one-, two- or three-phase voltages
increase above the set value, a corresponding PICKUP signal is issued. OV2PTOV (59) can be set to
PICKUP/TRIP, based on
the set point. If the voltage remains above the set value for a time period corresponding to the
chosen time delay, the corresponding trip signal is issued.
The time delay characteristic is settable for step 1 and can be either definite or inverse time
delayed. Step 2 is always definite time delayed.
The voltage related settings are made in percent of the global set base voltage
in kV, phase-to-phase.
Line distance protection REL650
Technical manual
Unit Step
s 0.001
- 0.01
- -
- -
%VB 1
s 0.001
Unit Step
- 1
- -
Type Values (Range)
REAL -
REAL -
REAL -
1 out of 3 , 2 out of 3 or 3 out of 3 of the measured voltages, being above
© Copyright 2011 ABB Power Grids. All rights reserved
Default Description
5.000 Minimum operate time for inverse curves
for step 1
0.05 Time multiplier for the inverse time delay
for step 1
Enabled Enable execution of step 2
1 out of 3 Number of phases required to operate (1
of 3, 2 of 3, 3 of 3) from step 2
150 Voltage start value (DT & IDMT) in % of
VBase for step 2
5.000 Definite time delay of step 2
Default Description
1 Selection of one of the Global Base Value
groups
PhN DFT Group selector for connection type
Unit Description
kV Voltage in phase A
kV Voltage in phase B
kV Voltage in phase C
Section 7
Voltage protection
PID-2719-MONITOREDDATA v5
M15330-3 v5
VBase , which is set
241