Operate And Reset Level; Operate And Reset Time; Voltage Controlled Overcurrent (Ph-Ph); Reference - Siemens Argus 7SR21 Technical Manual

2.18 51V Voltage Controlled Overcurrent (Ph-Ph)

2.18.1 Reference

Parameter
Vs Setting
m Multiplier
Is Setting

2.18.2 Operate and Reset Level

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
Unrestricted © 2013 Siemens Protection Devices Limited
Value
5, 5.5...199.5, 200 V
0.25, 0.3...0.95, 1
1 xIn
Value
100 % Vs, ± 1 % or ± 0.25 V
£ 105 % V
± 1 %
£ 5 %
-10 °C to +55 °C
f - 3 Hz
nom
to f + 2 Hz
nom
£ 5 %
harmonics to f
cutoff
7SR21 & 7SR22 Performance Specification
op
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