ABB RELION 630 Series Applications Manual page 39

1MRS757582 C
REG630
Application Manual
VOLTAGE CONTROLLED OVERCURRENT PROTECTION
FUSE_FAILURE
FUSE_FAILURE
NON-DIRECTIONAL OVERCURRENT PROTECTION
NEQATIVE SEQ. CURRENT PROTECTION
GUID-C23D57F9-CE42-4F19-870D-6A05053411DC V1 EN
Figure 11: Generator overcurrent protection
PHPVOC(1)
I(U)>
51V
3I START
OPERATE
3U
BLOCK
ENA_MULT
OR
PHPVOC(2)
I(U)>
51V
3I START
OPERATE
3U
BLOCK
ENA_MULT
PHLPTOC(1)
3I>
51P-1
3I_N START
BLOCK OPERATE
ENA_MULT
OR
PHHPTOC(1)
3I>>
51P-2
3I_N START
BLOCK OPERATE
ENA_MULT
MNSPTOC(1)
I >
2
46G/46M
3I_N START
BLOCK OPERATE
ENA_MULT
OR
MNSPTOC(2)
I >
2
46G/46M
3I_N START
BLOCK OPERATE
ENA_MULT
Section 3
REG630 variants
COMMON
OPERATE
COMMON
OPERATE
COMMON
OPERATE
33