Figure 5.2-1 Logic Diagram: Vt Supervision Function (60Vts) - Siemens 7SR224 Description & Operation

(1) Description of Operation 7SR224
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
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V
I
3 Phase Fail
Figure 5.2-1 Logic Diagram: VT Supervision Function (60VTS)
&
&
> 1
&
&
©2009 Siemens Protection Devices Limited
60VTS Delay
&
S
Q
60VTS Operated
R
>1