VAMP 140
Overcurrent and earth-fault relay
Technical description
VAMP Ltd
6
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.
t
s
t
r
&
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.