Figure 5.2-1 Logic Diagram: Vt Supervision Function (60Vts) - Siemens 7SR224 Technical Manual

Enabled
Disabled
60VTS Inhibit
1 or 2 Phase Fail
V0
VL1
Phase
V1
VL2 Seq.
Filter
V2
VL3
I0
IL1
Phase
I1
IL2 Seq.
Filter
I2
IL3
I1
I1
V1
External Trigger
60VTS Ext_Trig
External Reset
60VTS Ext_Reset

Figure 5.2-1 Logic Diagram: VT Supervision Function (60VTS)

©2010 Siemens Protection Devices Limited
&
V
&
I
3 Phase Fail
&
7SR224 Argus Description of Operation
60VTS Delay
&
> 1
S
Q
R
& >1
Chapter 1 Page 58 of 70
60VTS Operated