Voltage Controlled Overcurrent; Reference; Operate And Reset Level - Siemens 7SR12 Argus Manual

2.16 51V Voltage Controlled Overcurrent

Reference

2.16.1
Parameter
Vs Setting
m multiplier
Is Setting

Operate and Reset Level

2.16.2
Attribute
V Operate level
op
Reset level
Repeatability
Variation
Operate and Reset Time
As per Phase Fault Shaped Characteristic Element (ANSI 51).
Where Pickup Level = Is for Voltage > Vs
Pickup Level = (Is x m) for Voltage < Vs
©2017 Siemens Protection Devices Limited
Value
60V
0.5
1xIn
Value
100 % Vs, ± 1 % or ± 0.25V
≤ 105 % V
± 1 %
≤ 5 %
-10 °C to +55 °C
f ± 5 %
nom
≤ 5 %
harmonics to f
cutoff
7SR11 & 7SR12 Performance Specification
op
Chapter 3 Page 43 of 56