Sensitive Directional Residual Overcurrent And Power Protection Sdepsde; Identification - ABB Relion REC670 Applications Manual

1MRK 511 358-UEN A
IEC10000031 V1 EN-US
Figure 62: Relay characteristic angle given in degree
In a transmission network a normal value of RCA is about 80°.
UPolMin : Minimum polarization (reference) voltage % of UBase .
I>Dir : Operate residual current level for directional comparison scheme. The setting is given in
% of IBase . The start forward or start reverse signals can be used in a communication scheme.
The appropriate signal must be configured to the communication scheme block.
7.6 Sensitive directional residual overcurrent and power
protection SDEPSDE
7.6.1

Identification

Function description
Sensitive directional residual over
current and power protection
Application manual
Reverse
Area
AngleRCA
Iop = I2
Forward
Area
IEC 61850 IEC 60617
identification identification
SDEPSDE -
Current protection
Upol=-U2
IEC10000031-1-en.vsd
ANSI/IEEE C37.2
device number
67N
Section 7
SEMOD171436-1 v4
SEMOD172025-2 v4
133