Technical Data - ABB REL650 series Technical Manual

1MRK 506 335-UUS A
6.7.7
6.8
6.8.1
6.8.2
Technical manual
is longer than the time delay set on tR2 timer. It is possible to disable this condition
by connecting the logical 1 signal to the BLK_SS functional input.
• The INHIBIT internal signal is activated after the time delay, set on tR1 timer, if an
ground-fault appears during the power swing (input IOCHECK is high) and the
power swing has been detected before the ground-fault (activation of the signal
I0CHECK). It is possible to disable this condition by connecting the logical 1 signal
to the BLK_I0 functional input.

Technical data

Table 65: ZMRPSB (68) technical data
Function
Reactive reach
Resistive reach
Timers
Minimum operate current
Automatic switch onto fault logic, voltage and current
based ZCVPSOF
Identification
Function description
Automatic switch onto fault logic,
voltage and current based
Functionality
Automatic switch onto fault logic, voltage and current based ZCVPSOF is a function that
gives an instantaneous trip at closing of breaker onto a fault. A dead line detection check
is provided to activate the function when the line is dead.
Mho distance protections can not operate for switch onto fault condition when the phase
voltages are close to zero. An additional logic based on VI Level shall be configured for
this purpose.
Range or value
(0.10-3000.00) W/phase
(0.10–1000.00) W/phase
(0.000-60.000) s
(5-30)% of IBase
IEC 61850 IEC 60617
identification identification
ZCVPSOF
Section 6
Impedance protection
Accuracy
± 2.0% static accuracy
Conditions:
Voltage range: (0.1-1.1) x V
Current range: (0.5-30) x I
n
Angle: at 0 degrees and 85
degrees
± 0.5% ± 10 ms
± 1.0% of I
n
ANSI/IEEE C37.2
device number
- -
n
183