51N Time-Delayed Earth Fault - Calculated - Siemens 7SR51 Device Manual

Technical Data
10.21 51N Time-Delayed Earth Fault – Calculated
10.21 51N Time-Delayed Earth Fault – Calculated
Reference
I
set
I
char
Tm
t
delay
t
reset
Operate and Reset Level
I
op
534
Parameter
Setting
Applied current (for IDMTL
operate time)
DTL
Characteristic
Time multiplier (IEC/ANSI)
Delay setting
Minimum operate time
Follower DTL
Reset setting
Attribute
Operate level
Reset level
Repeatability
Variation IEC -10 °C to +55 °C
60255-1
f
rated
Value
0.05 to 2.5 ⋅ I
0 to 2 ⋅ I
set
0 to 20 ⋅ I
0 to 5 ⋅ I
set
IEC-NI, -VI, -EI, -LTI;
ANSI-MI, -VI, -EI; DTL
0.025 to 1.6, Δ 0.025
1.6 to 5, Δ 0.1
5 to 100, Δ 1
0 to 20 s, Δ 0.01 s
0 to 20 s, Δ 0.01 s
0 to 20 s, Δ 0.01 s
ANSI decaying
IEC decaying
DTL: 0 to 60 s
Value
105 % I : ± 4% or ± 1 % I
set
≥ 95 % I
op
± 1 %
≤ 5 %
± 5 % ≤ 5 %
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019
, Δ 0.01
rated
(switched)
(switched)
set
(switched)
rated