Siemens 7SR18 Solkor - 87 HS High-Set Differential; Reference; Operate and Reset Level; Operate and Reset Time

7SR18 Performance Specification
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2.12 87HS High-Set Differential
2.12.1 Reference
Parameter Value
Setting 1, 2 … 30 xIn
Delay setting 0, 0.005… 60 s
2.12.2 Operate and Reset Level
Attribute Value
I
op
Operate level
± 5 % of setting or ± 0.01In
Reset level ≥ 95 % of I
OP
Repeatability
± 2 %
Transient overreach ≤ 5 %
Variation
-10 °C to +55 °C
f
nom
- 3 Hz to f
nom
+ 2 Hz
2.12.3 Operate and Reset Time
Attribute Value
t
basic
Element basic operate time > 1.1 xIn 30 ms to 50 ms (Typically 30 ms)
2.13 85 Inter-trip Element
2.13.1 Reference
Attribute Value
Delay setting 0, 0.005… 60 s
2.13.2 Operate Time
Attribute Value
Inter-trip base element operate time 10 ms + 20 ms