ABB REG630 - Three-Phase Residual Overvoltage Protection ROVPTOV

OR
COMMON
OPERATE
U >
ROVPTOV(1)
START
OPERATE
3U
BLOCK
59G
0
U >
ROVPTOV(2)
START
OPERATE
3U
BLOCK
59G
0
I >>
0
DEFHPDEF(1)
START
OPERATEU0
BLOCK
67N-2
ENA_MULT
RCA_CTL
I
0
I >
0
DEFLPDEF(1)
START
OPERATEU0
BLOCK
67N-1
ENA_MULT
RCA_CTL
I
0
DIRECTIONAL EARTH-FAULT PROTECTION
RESIDUAL OVERVOLTAGE PROTECTION
FUSE_FAILURE
FUSE_FAILURE
FUSE_FAILURE
FUSE_FAILURE
GUID-C4EFC490-502C-4B27-A542-1CB2C078A7EB V1 EN
Figure 12: Generator stator earth-fault protection
3.2.6.7 Three-phase residual overvoltage protection ROVPTOV
The residual overvoltage function blocks operate with definite-time characteristics. A
set of three phase voltages, U3P, is connected to the inputs. The configuration includes
two instances of residual overvoltage protection.
A common operate and start signal from both residual overvoltage protection
functions and directional earth fault signals is connected to an OR-gate to form a
combined operate and start signal which provides a LED indication on the LHMI.
1MRS757582 C Section 3
REG630 variants
REG630 35
Application Manual