Load Blinder (21Lb - 1P); Reference; Operate Level; Operate Angle - Siemens Argus 7SR21 Technical Manual

3.9 Load Blinder (21LB – 1P)
3.9.1

Reference

Parameter
Φ Angle + ve setting
Φ Angle – ve setting
Z Impedance
V Vpps Level
pps
I Izps Level
zps
3.9.2

Operate Level

Attribute
V Voltage PPS operate level
PPS
Voltage PPS reset level
I Current ZPS operate level
ZPS
Impedance
Repeatability
3.9.3

Operate Angle

Attribute
Operating angle
Unrestricted © 2013 Siemens Protection Devices Limited
Value
5 Deg to 85 Deg
5 Deg to 85 Deg
1 Ohm to 100 Ohms
1 V to 110 V
0.05 xIn to 5 xIn
Value
100 % Vs, ± 2 % or ± 0.5 V
110 % V
100 % Is, ± 5 % or ± 1% In
100 % Zs, ± 5 % or ± 0.1 Ω
± 1 %
Value
(21LB-1P Angle +ve°) ± 5° to (21LB-1P Angle –ve°) ± 5°
forward
(180° - 21LB-1P Angle +ve°) ± 5° to (180° + 21LB-1P Angle –ve°) ± 5°
reverse
7SR21 & 7SR22 Performance Specification
, ± 5 % Vn
PPSop
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