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NV10P - Manual - 01 - 2015
CHARACTERISTICS
Virtual I/O with Ethernet messages
Eight outputs (Virtual Output - VOUT1 ... 8) and ten virtual inputs (Virtual Inputs - VIN1 ... VIN10) may
be defi ned using RPC or IEC 61850 communication protocols over Ethernet network.
Over Pro-N relay the virtual I / O can be usefully employed for:
Transmit information between protections installed in signifi cant distance where the traditional
connections are critical in terms of reliability. One application is proposed in which the measure-
ment of residual voltage, not being available on the interface relay (high distance from NV10P
relay and VTs installed in MV), is transmitted as start and trip signals by another relay (S1) to the
interface relay (S2).
Making OR logic for opening control of multiple DDI (simultaneous control of all DDI operated by
each SPI) in cases of multiple interface protections (Smart Grids).
Example 1
The diagram shows a solution that uses relays, logic inputs and connections pilot wires to transmit
59N start and trip information to the interface relay (S2) from a relay (S1) installed in MV..
1)
2)
START UE>>
(59N)
NV10P
59N external protection
Trip - DI
A3
A4
A5
K1
A9
A10
A11
K3
K4
A12
A13
A14
K5
K6
A6
A7
A8
K2
+U
AUX
-U
AUX
Consenso f<-f>
A19
A20
IN1
U
AUX
A1
≅
A2
-U
AUX
+U
AUX
L1
L2
L3
B7
B8
Raf(*)
da
dn
N
A
DI
Trip DI (K1)
G ~
Phase-to-phase voltage measurement input with direct connection in the LV side (UR = 400 V versions) with 59N detection and processing
by means of the device away from the NV10P relay and transmission of 59N start via a digital signal connected to IN1 input of NV10P
+U
AUX
-U
AUX
A3
A4
A5
A6
A7
A8
K2
K1
OUTPUT RELAYS
B5
B6
B3
B4
B1
B2
U
L1
U
L2
U
L3
U
E
(*) Raf - antiferroresonance
TRIP - UE>>
Distance from VT to NV10P
considered excessive
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