Table 25. 1Ph High impedance differential protection HZPDIF
Function
Range or value
Accuracy
Operate voltage
(20-400) V
I=U/R
± 1.0% of I
r
Reset ratio
>95%
-
Maximum continuous power
U>Trip
2
/SeriesResistor ≤200 W
-
Operate time
10 ms typically at 0 to 10 x U
d
-
Reset time
100 ms typically at 10 to 0 x U
d
-
Critical impulse time
2 ms typically at 0 to 10 x U
d
-
Table 26. Generator differential protection GENPDIF
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
r
Negative sequence current level
(0.02–0.4)p.u. of
IBase
± 1.0% of I
r
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
-
Operate time, unrestrained function
20 ms typically at 0 to 5 x
set level
-
Reset time, unrestrained function
40 ms typically at 5 to 0 x
set level
-
Operate time, negative sequence
unrestrained function
15 ms typically at 0 to 5 x
set level
-
Critical impulse time, unrestrained function
3 ms typically at 0 to 5 x
set level
-
Generator protection REG650
1MRK 502 050-BEN B
Product version: 1.3
40
ABB
Содержание REG650 ANSI
Страница 1: ...Relion 650 series Generator protection REG650 Product guide...
Страница 72: ...72...
