Section 4: Control Functions; Check Synchronising; Reference; Live/Dead Line/Bus Detector Elements - Siemens 7SR224 Technical Manual

Section 4: Control Functions

4.1

Check Synchronising

4.1.1

Reference

Parameter
V Nominal Voltage
nom
f Nominal Frequency
n
V Live Setting
live
V Dead Setting
dead
V Line Voltage Setting
sl
Bus Voltage Setting
V
sb
Voltage Differential Setting
V
diff
Θ CS Angle
cs
Θ SS Angle
ss
f COZ Slip
coz
f CS Slip Freq
cs
f SS Slip Freq
ss
t CS Timer
cs
t SS Timer
ss
f Split Slip
sps
t /t DLC/DBC Delays
dlc dbc
t Sync Close Window
cw
4.1.2

Live/Dead Line/Bus Detector Elements

Attribute
V Live operate level
live,act
Live reset level
V Dead operate level
dead,act
Dead reset level
Repeatability
-10 °C to +55 °C
Variation
f
nom
4.1.3

Line and Bus Undervoltage Elements

Attribute
V Operate level
line
Reset level
V Operate level
bus
Reset level
Repeatability
-10 °C to +55 °C
Variation
f
nom
©2010 Siemens Protection Devices Limited
Value
40-160V
50/60Hz
10% - 150%
10% - 150%
10% - 150%
10% - 150%
5% - 95%
1 – 90 º
1 – 90 º
30 mHz – 250 mHz
20 mHz – 250 mHz
10 mHz – 250 mHz
0-100s
0-1s
20 mHz – 250 mHz
0-60s
1 s – 1200s
Value
100 % V
live
, ± 1 % V
V
dead,act
100 % V
dead
, ± 1 % V
V
live,act
± 1 %
≤ 5 %
- 3 Hz
≤ 1 %
to f + 2 Hz
nom
Value
100 % Vsl, ± 1 % V
≤ V
+ 4 %
line
100 % Vsb, ± 1 % V
≤ V
+ 4 %
bus
± 1 %
≤ 5 %
- 3 Hz
≤ 1 %
to f + 2 Hz
nom
7SR224 Argus Performance Specification
, ± 1 % V
n
n
, ± 1 % V
n
n
n
n
Chapter 3 Page 47 of 49