Siemens 7SR224 - Voltage Difference; General Autoreclose Timers; CS;SS;COZ Line and Bus Phase Angle Difference; CS;SS;COZ Slip Frequency

7SR224 Argus Performance Specification
4.1.4 Voltage Difference
Attribute Value
V
op
Operate level
100 % V
diff
, ± 1 % V
n
Reset level
≥ V
op
– 4%
Repeatability
± 2 %
4.1.5 General Autoreclose Timers
Attribute Value
t
basic
Element basic operate time 20ms ±20ms
t
op
t
dlc
/t
dbc
/t
cw
t
op
+ t
basic
±1%
Repeatability ±20ms
4.1.6 CS/SS/COZ Line and Bus Phase Angle Difference
Attribute Value
θ
op
Operate angle
θ
diff
, ±1 º
Reset angle
θ
op
, ±1 º
Repeatability
± 1 º
4.1.7 CS/SS/COZ Slip Frequency
Attribute Value
f
op
Operate frequency f
slip
, ± 10 mHz
Reset frequency f
op
, - 10 mHz
Repeatability
± 10 mHz
4.1.8 CS/SS Timer
Attribute Value
t
op
Operate time ±1 º, +20ms
Note: minimum synchronising time following restoration of voltage from a dead condition is 320ms.
4.1.9 Split Angle Detector
Attribute Value
θ
op
Operate angle
θ
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
©2010 Siemens Protection Devices Limited Chapter 3 Page 48 of 49