46 Negative-Sequence Overcurrent Protection
Definite Time Element (46DT)
Reference
Parameter
Value
I
set
Setting
0.05 to 4 ⋅ I
rated
I
Applied current (for operate time)
0 to 2 ⋅ I
set
(switched)
0 to 5 ⋅ I
set
(switched)
t
delay
Delay setting
0 to 20 s, Δ 0.01 s
20 to 100 s, Δ 0.1 s
100 to 1000 s, Δ 1 s
1000 to 10000 s, Δ 10 s
1000 to 14400 s, Δ 100 s
Operate and Reset Level
Attribute
Value
I
op
Operate level
I
set
: ± 5 % or ± 1 % I
rated
Reset level
≥ 95 % I
op
Repeatability
± 1 %
Transient overreach (X/R ≤ 100)
≤ -5 %
Variation IEC
60255-1
-10 °C to +55 °C
≤ 5 %
f
rated
± 5 %
≤ 5 %
Operate and Reset Time
Attribute
Value
t
basic
Element basic operate time
2 ⋅ I
set
: 40 ms ± 10 ms
5 ⋅ I
set
: 30 ms ± 10 ms
t
delay
char = DTL
t
delay
± 1 % or ± 30 ms
Repeatability
± 1 % or ± 10 ms
Overshoot time
< 40 ms
Disengaging time
< 90 ms
Inverse Time Element (46IT)
Reference
Parameter
Value
char
Characteristic setting
IEC-NI, -VI, -EI, -LTI; ANSI-MI, -VI, -EI; DTL
Tm
Time multiplier setting
0.025 to 1.6
I
set
Setting
0.05 to 2.5 ⋅ I
rated
I
Applied current (for operate time) IDMTL
0 to 2 ⋅ I
set
(switched)
t
delay
Delay setting
0 to 20 s
t
reset
Reset setting
ANSI Decaying, 0 to 60 s
10.8
10.8.1
10.8.2
Technical Data
10.8 46 Negative-Sequence Overcurrent Protection
Reyrolle 7SR5, Transformer Protection Device, Device Manual
465
C53000-G7040-C015-1, Edition 11.2019
Содержание Reyrolle 7SR5
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