ABB Relion Applications Manual page 42

Section 3
REU611 standardized configuration
36
ROVPTOV1
U >(1)
0
59G(1)
U OPERATE
0
BLOCK START
ROVPTOV2
U >(2)
0
59G(2)
U OPERATE
0
BLOCK START
ROVPTOV3
U >(3)
0
59G(3)
U OPERATE
0
BLOCK START
GUID-77BDA0D6-968E-4EF0-84E0-ED91580217A7 V1 EN
Figure 17: Residual overvoltage protection
The residual overvoltage protection ROVPTOV provides earth-fault protection by
detecting abnormal level of residual voltage. It can be used, for example, as a
nonselective backup protection for the selective directional earth-fault functionality.
All operate signals of these residual overvoltage protections are connected to the
master trip and to alarm LED 3.
RESIDUAL OVERVOLTAGE PROTECTION
OSWGAPC9
IN_7
IN_8
OUT
OR
IN_9
1MRS758335 B
SELGAPC4
IN_10 OUT_3
LED 3
REU611
Application Manual