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en07000022_ansi.vsd
PU_A
PU_B
PU_C
OR
PICKUP
BLKH_A
BLKH_B
BLKH_C
OR
BLKH
ANSI07000022 V1 EN
Figure 59:
Generator differential logic diagram 3.
en07000023_ansi.vsd
TRIPRES_A
TRIPRES_B
TRIPRES_C
OR
TRIPRES
TRIPUNRE_A
TRIPUNRE_B
TRIPUNRE_C
OR
TRIPUNRE
OR
TRIP
TRNSUNR
TRNSSENS
ANSI07000023 V1 EN
Figure 60:
Generator differential logic diagram 4.
6.4.7
Technical data
Table 49:
GENPDIF (87G)technical data
Function
Range or value
Accuracy
Unrestrained differential current limit
(1-50)p.u. of
IBase
± 1.0% of set value
Reset ratio
> 90%
-
Base sensitivity function
(0.10–1.00)p.u. of
IBase
± 1.0% of I
n
Negative sequence current level
(0.02–0.4)p.u. of
IBase
± 1.0% of I
n
Operate time, restrained function
40 ms typically at 0 to 2
x set level
-
Reset time, restrained function
40 ms typically at 2 to 0
x set level
-
Table continues on next page
Section 6
1MRK 502 048-UUS A
Differential protection
148
Technical manual
Summary of Contents for 650 series
Page 1: ...Relion 650 series Generator protection REG650 ANSI Technical manual ...
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