VAMP 140 - Page 30

VAMP 140 Overcurrent and earth-fault relay
Operation and Configuration
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2 Selection of setting values:
Protection stage: Parameter: Setting:
Overcurrent stage I> I>
Curve
1.20pu
DT
t> 0.50 s
Overcurrent stage I>> I>> 1.50pu
t>> 0.20 s
Overcurrent stage I>>> I>>> 2.00pu
t>>> 0.08 s
Residual current stage Io> Io> 0.10pu
t> 0.40 s
Residual current stage Io>> Io>>
Curve
0.20pu
DT
t>> 0.20 s
Residual current stage Io>>> Io>>> 0.30pu
t>>> 0.10 s
3 Blocking matrix
The required blocking of the protection functions are configured
in the BLOCKING menu, see Chapter 5.6.
4 Output relay configuration
The required grouping of output relays and output signals are
configured in the DOUT menu, see Chapter 5.5.
In the example, relay T1 is programmed to open the circuit
breaker with a trip signal (for example I>>) selected in the
DOUT menu.