OR
UNDER VOLTAGE PROTECTION
COMMON
OPERATE
3U<
PHPTUV(1)
START
OPERATE
3U
BLOCK
27
3U<
PHPTUV(2)
START
OPERATE
3U
BLOCK
27
OR
OVER VOLTAGE PROTECTION
COMMON
OPERATE
3U>
PHPTOV(1)
START
OPERATE
3U
BLOCK
59
3U>
PHPTOV(2)
START
OPERATE
3U
BLOCK
59
FUSE_FAILURE
FUSE_FAILURE
GUID-76AA70CF-0312-4163-96D9-2883C9CDAB00 V1 EN
Figure 13:
Generator voltage protection
3.2.6.10
Overfrequency protection DAPTOF
Overfrequency protection function is used for protecting a network component from
possible damage caused by overfrequency conditions. Two instances of
overfrequency functions are used with DT characteristic. The set of three phase
voltages, U3P, is connected to the inputs.
A common operate and start signal from the both overfrequency protection functions
is connected to an OR-gate to form a combined overfrequency operate and start signal,
which provides a LED indication on the LHMI. Also a separate start signal from the
both instances is connected to the disturbance recorder. However, the operate signal
from both stages is connected to the OR-gate to form a combined overfrequency
operate signal, and connected to the disturbance recorder.
1MRS757582 C
Section 3
REG630 variants
REG630
37
Application Manual
Summary of Contents for Relion 630 Series
Page 1: ...RELION 630 SERIES Generator Protection and Control REG630 Application Manual...
Page 2: ......
Page 16: ...10...
Page 63: ...57...