ABB Relion 670 series - Functionality; Identification

Function Range or value Accuracy
Real part of source Z used for current
polarization
(0.50-1000.00) W/phase
-
Imaginary part of source Z used for
current polarization
(0.50–3000.00) W/phase
-
Trip time, pickup non-directional at 0 to 2
x I
set
Min. = 15 ms
Max. = 30 ms
-
*Reset time, pickup non-directional at 2 x
I
set
to 0
Min. = 15 ms
Max. = 30 ms
-
Trip time, pickup non-directional at 0 to
10 x I
set
Min. = 5 ms
Max. = 20 ms
-
*Reset time, pickup non-directional at 10 x
I
set
to 0
Min. = 20 ms
Max. = 35 ms
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Impulse margin time 15 ms typically -
*Note: Operate time and reset time are only valid if harmonic blocking is turned off for a step.
8.5 Four step directional negative phase sequence
overcurrent protection NS4PTOC (46I2)
GUID-E8CF8AA2-AF54-4FD1-A379-3E55DCA2FA3A v1
8.5.1 Identification
GUID-E1720ADA-7F80-4F2C-82A1-EF2C9EF6A4B4 v1
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Four step negative sequence
overcurrent protection
NS4PTOC
I2
4
4
alt
IEC10000053 V1 EN-US
46I2
8.5.2 Functionality
GUID-485E9D36-0032-4559-9204-101539A32F47 v5
Four step negative sequence overcurrent protection (NS4PTOC, (4612) ) has an inverse or definite
time delay independent for each step separately.
All IEC and ANSI time delayed characteristics are available together with an optional user defined
characteristic.
The directional function is voltage polarized.
NS4PTOC (4612) can be set directional or non-directional independently for each of the steps.
NS4PTOC (4612) can be used as main protection for unsymmetrical fault; phase-phase short
circuits, phase-phase-ground short circuits and single phase ground faults.
1MRK 502 066-UUS B Section 8
Current protection
491
Technical manual