VAMP 140 - Page 36

VAMP 140 Overcurrent and earth-fault relay
Technical description
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Vamp 24h support phone +358 (0)40 573 6316 VM140.EN011
Figure 2.1-1 Principle block diagram of a numerical protection relay.
Figure 2.1-2 Block diagram of a software based function.
ts
tr
&
t
&
&
U
1VUSLOHKO
>
Blocking
Setting
U>s
Delay
Enable
event
Start
Event
register
Trip
Event
register
Figure 2.1-3 Block diagram of a single-phase protection function.