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NV10P - Manual - 01 - 2015
CHARACTERISTICS
The diagram shows an example that uses the virtual I / O circuits where the S1 relay transmits the
information relating to the 59N function to relay S2, S3 and S4 and simultaneously the OR logic for the
command of the interface devices is achieved.
S1 outputs
The VOUT1 and VOUT2 outputs must be programmed as in Example 1 to transmit information about to
the 59N protection, processed by the S1 relay to relay S2, S3 and S4 where the measure of residual
voltage is missing:
Start, used as a start signal of the second threshold of 59N protection (S1) in order to activate the fi rst
threshold of under and over frequency (81U and 81O) of the protections S2, S3 and S4.
Trip, used in Example as trip signal of the second threshold of 59N protection (S1) in order to control
the opening of the interface device by means of remote tripping of protections S2, S3 and S4
S2, S3 e S4 inputs
The enable of the fi rst threshold of under and over frequency (81U and 81O) is set to the occurrence
of an earth fault (start UE >> active on S1 protection) on the VIN1 virtual input and the remote trip on
the VIN2 virtual input protection on S2, S3 and S4 relays that drive the circuit breaker interface.
S2, S3 and S4 outputs
The output VOUT2 must be set to carry out the logical OR for the opening command of all the circuit
breaker interfaces (simultaneous control of all the CBs function from each NV10P):
Trip, used in the example as a trip signal of the protection functions of S1 in order to control the
opening of the interface device by means of remote tripping of protections S2, S3 and S4
Links (virtual pilot wires)
After defi ning the input and output circuits the virtual links must be created.
A unique IP address for each relay must be assigned.
To transmit information to a group of devices the
Multicast
communication mode is available.
•
•
•
S1
S2
DDI
TRIP -
UE>>
START -
UE>>
Ethernet
Telescatto DDI
S3
DDI
S4
DDI
IP: 222.2.2.101
VIN2
VOUT2
VIN1
PROTECTION RELAY
NV
10P
UE>>
(Abilita f<,f>)
Remote trip
Trip NV10P
D1
IP: 222.2.2.102
VIN2
VOUT2
VIN1
PROTECTION RELAY
NV
10P
UE>>
(Abilita f<,f>)
Remote trip
Trip NV10P
D1
IP: 222.2.2.103
VIN2
VOUT2
VIN1
PROTECTION RELAY
NV
10P
UE>>
(Abilita f<,f>)
Remote trip
Trip NV10P
D1
IP: 222.2.2.100
D1
PROTECTION RELAY
NV
10P
VOUT2
TRIP -
UE>>
VOUT1
START UE>>
TRIP -
UE>>
START -
UE>>