Siemens Argus 7SR21 - Split Angle Detector; Split Slip Frequency Detector; Live;Dead; Reference

7SR21 & 7SR22 Performance Specification
Unrestricted Page 68 of 68 © 2013 Siemens Protection Devices Limited
4.1.9 Split Angle Detector
Attribute Value
q
op
Operate angle
q
split
, ± 1 °
4.1.10 Split Slip Frequency Detector
Attribute Value
f
op
Operate frequency f
slip
, ± 10 mHz
Reset frequency f
op
, - 10 mHz
Repeatability
± 10 mHz
4.2 Live/Dead
4.2.1 Reference
Parameter Value
V
s
Setting (ABC side) 5, 5.5…200 V
V
s
Setting (XYZ side) 5, 5.5…120 V
4.2.2 Live/Dead Detector Elements
Attribute Value
V
live,act
Live operate level
100 % V
live
, ± 1 % V
n
Live reset level
V
dead,act
, ± 1 % V
n
V
dead,act
Dead operate level
100 % V
dead
, ± 1 % V
n
Dead reset level
V
live,act
, ± 1 % V
n
Repeatability
± 1 %
Variation
-10 °C to +55 °C
£ 5 %
f
nom
± 5 %
£ 1 %