ABB Relion Applications Manual page 43

1MRS758335 B
REU611
Application Manual
POSITIVE AND NEGATIVE SEQUENCE PROTECTION INDICATION
PSPTUV1
U1<(1)
47U+(1)
3I
BLOCK
PSPTUV2
U1<(2)
47U+(2)
3I
BLOCK
NSPTOV1
U2>(1)
47O-(1)
3I
BLOCK
NSPTOV2
U2>(2)
47O-(2)
3I
BLOCK
GUID-1D8D400A-3ED1-4C24-BE3D-A93EB046013D V1 EN
Figure 18: Unbalance protection
Four unbalance voltage protection functions are available, two stages of positive-
sequence undervoltage protection PSPTUV and two stages of negative-sequence
overvoltage protection NSPTOV.
The operate signals of these unbalance voltage protections are connected to the master
trip and to alarm LED 4.
REU611 standardized configuration
OPERATE
START
OSWGAPC10
OPERATE
IN_12
START
IN_13
OR
IN_14
IN_15
OPERATE
START
OPERATE
START
Section 3
SELGAPC4
IN_11 OUT_4
OUT
LED 4
37