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Siemens Argus 7SR22 - Load Blinder (21 LB - 1 P); Reference; Operate Level; Operate Angle

Siemens Argus 7SR22
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7SR21 & 7SR22 Performance Specification
Unrestricted © 2013 Siemens Protection Devices Limited Page 65 of 68
3.9 Load Blinder (21LB – 1P)
3.9.1 Reference
Parameter Value
Φ Angle + ve setting 5 Deg to 85 Deg
Φ Angle – ve setting 5 Deg to 85 Deg
Z Impedance 1 Ohm to 100 Ohms
V
pps
Vpps Level 1 V to 110 V
I
zps
Izps Level 0.05 xIn to 5 xIn
3.9.2 Operate Level
Attribute Value
V
PPS
Voltage PPS operate level
100 % Vs, ± 2 % or ± 0.5 V
Voltage PPS reset level
110 % V
PPSop
, ± 5 % Vn
I
ZPS
Current ZPS operate level
100 % Is, ± 5 % or ± 1% In
Impedance
100 % Zs, ± 5 % or ± 0.1
Repeatability
± 1 %
3.9.3 Operate Angle
Attribute Value
Operating angle
forward
(21LB-1P Angle +ve°) ± 5° to (21LB-1P Angle –ve°) ± 5°
reverse
(180° - 21LB-1P Angle +ve°) ± 5° to (180° + 21LB-1P Angle –ve°) ± 5°

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