ABB REL650 - Four Step Directional Negative Phase Sequence Overcurrent Protection NS4 PTOC; Identification; Functionality

Function Range or value Accuracy
Inverse time characteristics, see Table 674,
Table 675 and Table 676
16 curve types See Table 674,
Table 675 and
Table 676
Second harmonic blocking
(5–100)% of fundamental ±2.0% of I
r
Minimum polarizing voltage (1–100)% of UBase ±0.5% of U
r
Minimum polarizing current (2-100)% of IBase ±1.0% of I
r
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
-
Operate time, start non-directional at 0 to 2 x
I
set
Min. = 15 ms
Max. = 30 ms
-
Reset time, start non-directional at 2 x I
set
to
0
Min. = 15 ms
Max. = 30 ms
-
Operate time, start non-directional at 0 to 10
x I
set
Min. = 5 ms
Max. = 20 ms
-
Reset time, start 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 -
7.5 Four step directional negative phase sequence
overcurrent protection NS4PTOC
GUID-E8CF8AA2-AF54-4FD1-A379-3E55DCA2FA3A v1
7.5.1 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
7.5.2 Functionality
GUID-485E9D36-0032-4559-9204-101539A32F47 v6
Four step directional negative phase sequence overcurrent protection (NS4PTOC)
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.
Section 7 1MRK 506 382-UEN A
Current protection
204 Line distance protection REL650 2.2 IEC
Technical manual