ABB REB670 - Four Step Directional Negative Phase Sequence Overcurrent Protection NS4 PTOC (46 I2); Identification; Application

HarmBlockx: This is used to enable block of step x from 2
nd
harmonic restrain
function.
tPCrvx, tACrvx, tBCrvx, tCCrvx: Parameters for user programmable of inverse time
characteristic curve. The time characteristic equation is according to equation 36:
[ ]
p
A
t s B TD
i
C
ipickup
= + ×
-
æ ö
ç ÷
ç ÷
ç ÷
æ ö
ç ÷
ç ÷
è ø
è ø
EQUATION1722 V1 EN-US (Equation 36)
Further description can be found in the technical reference manual.
tPRCrvx, tTRCrvx, tCRCrvx: Parameters for user programmable of inverse reset time
characteristic curve. Further description can be found in the technical reference
manual
.
7.4 Four step directional negative phase sequence
overcurrent protection NS4PTOC (46I2)
GUID-E8CF8AA2-AF54-4FD1-A379-3E55DCA2FA3A v1
7.4.1 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
7.4.2 Application
GUID-343023F8-AFE3-41C2-8440-1779DD7F5621 v2
Four step negative sequence overcurrent protection NS4PTOC
(4612) is used in
several applications in the power system. Some applications are:
Section 7 1MRK 505 370-UUS A
Current protection
204 Busbar protection REB670 2.2 ANSI
Application manual