Monitored Data; Operation Principle - ABB RED650 Technical Manual

1MRK 505 394-UEN A
Name Values (Range)
DCrv2
PCrv2
CrvSat2
Table 126: OV2PTOV Non group settings (basic)
Name Values (Range)
ConnType
GlobalBaseSel
9.2.6
9.2.7
Line differential protection RED650 2.2 IEC
Technical manual
Unit
0.000 - 60.000 -
0.000 - 3.000 -
0 - 100 %
Unit
PhN DFT -
PhPh DFT
PhN RMS
PhPh RMS
1 - 12 -

Monitored data

Table 127: OV2PTOV Monitored data
Name
UL1
UL2
UL3

Operation principle

Two step overvoltage protection OV2PTOV is used to detect high power system
voltage. OV2PTOV has two steps with separate time delays. If one-, two- or three-
phase voltages increase above the set value, a corresponding START signal is
issued. OV2PTOV can be set to START/TRIP, based on 1 out of 3, 2 out of 3 or 3
out of 3 of the measured voltages, being above 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 individually chosen for the two steps, and can be
either definite time or inverse time delayed.
The voltage related settings are made in percent of the global set base voltage
UBase, which is set in kV, phase-to-phase.
OV2PTOV can be set to measure phase-to-earth fundamental value, phase-to-phase
fundamental value, phase-to-earth RMS value or phase-to-phase RMS value. The
choice of measuring is done by the parameter ConnType.
Step Default
0.001 0.000
0.001 1.000
1 0
Step Default
- PhN DFT
1 1
Type Values (Range)
REAL -
REAL -
REAL -
Section 9
Voltage protection
Description
Parameter D for customer
programmable curve for step 2
Parameter P for customer programmable
curve for step 2
Tuning param for prog. over voltage
IDMT curve, step 2
Description
Group selector for connection type
Selection of one of the Global Base
Value groups
PID-3535-MONITOREDDATA v6
Unit Description
kV Voltage in phase L1
kV Voltage in phase L2
kV Voltage in phase L3
M15330-3 v11
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