21Lb Load Blinder; Phase Load Blinder (21Lb-3P); Single Phase Load Blinder (21Lb-1P) - Siemens Reyrolle 7SR5 Manual

10.2

21LB Load Blinder

3 Phase Load Blinder (21LB‑3P)
10.2.1
Reference
I
2 set
V
2 set
φ+ set
φ- set
Z
set
Operate and Reset Level
V
op
I
op
Operate Angle
φ
op
10.2.2 Single Phase Load Blinder (21LB‑1P)
Reference
I
0 set
V
1 set
φ+ set
φ- set
Z
set
Operate and Reset Level
V
op
I
op
Reyrolle 7SR5, Transformer Protection Device, Device Manual
C53000-G7040-C015-1, Edition 11.2019
Parameter
I level setting
2
V level setting
2
Angle +ve setting
Angle –ve setting
Impedance setting
Attribute
V operate level
1
V reset level
1
I operate level
2
Impedance
Repeatability
Attribute
Operating angle Forward
Reverse
Parameter
I level setting
0
V level setting
1
Angle +ve setting
Angle –ve setting
Impedance setting
Attribute
V operate level
1
V reset level
1
I operate level
0
Impedance
Repeatability
10.2 21LB Load Blinder
Value
0.05 ⋅ I to 5 ⋅ I
rated rated
1 V to 110 V
5° to 85°
5° to 85°
1 Ω to 100 Ω
Value
V : ± 2 % or ± 0.5 V
set
110 % V : ± 5 % V
1 op rated
I : ± 5 % or ± 1 % I
set rated
Z : ± 5 % or ± 0.1 Ω
set
± 1 %
Value
φ+ set ± 5° to
φ- set ± 5°
(180° - φ+ set) ± 5° to
(180° + φ- set) ± 5°
Value
0.05 ⋅ I to 5 ⋅ I
rated rated
1 V to 110 V
5° to 85°
5° to 85°
1 Ω to 100 Ω
Value
V : ± 2 % or ± 0.5 V
set
110 % V : ± 5 % V
1 op rated
I : ± 5 % or ± 1 % I
set rated
Z : ± 5 % or ± 0.1 Ω
set
± 1 %
Technical Data
457