Section 2: Protection Functions; Undercurrent; Reference; Operate And Reset Level - Siemens 7SR18 Solkor Manual

7SR18 Performance Specification

Section 2: Protection Functions

2.1

37 Undercurrent

2.1.1

Reference

Parameter
Is Setting
t Delay setting
d
2.1.2

Operate and Reset Level

Attribute
I Operate level
op
Reset level
Repeatability
-10 °C to +55 °C
Variation
f
nom
2.1.3

Operate and Reset Time

Attribute
t Element basic operate time
basic
t Operate time following delay
op
Repeatability
Overshoot time
Disengaging time
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Value
0.05, 0.10...5.0 xIn
0.00, 0.01...20.00, 20.10... 100, 101... 1000, 1010...
10000, 10100... 14400 s
± 5 %
Value
1.1 to 0.5 xIs: 35 ms, ± 10 ms
t
± 1 % or ± 10 ms
< 40 ms
< 60 ms
Value
100 % Is, ± 5 % or ± 1 % In
£ 105 % I
op
± 1 %
£ 5 %
£ 5 %
, ± 1 % or ± 10 ms
+ t
basic d
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