FUNCTION CHARACTERISTICS
275
NVA100X-D - Manual - 02 - 2016
Virtual I/O
Preface
By ThySetter and ThyVisor software tools the type of operation and links between outputs (Virtual
Output - VOUT1 ... 16) and virtual inputs (Virtual Inputs - VIN1 ... VIN32) may be defi ned using RPC or
IEC 61850 communication protocols over Ethernet network.
The system allows:
[1]
Availability of sixteen inputs and thirty-two outputs independently programmable by the user
Simplify wiring using one channel as the Ethernet
Eliminate the need to install communication devices and / or external conversion
Signifi cantly reduce costs
Dynamically change from sw connections and associated functions.
Applications
With Pro-N and Pro-XX 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.
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)
Achieve accelerated logic discrimination in which some protection elements can be blocked by the
activation of the downstream protection start; this allows to reduce the clearing time that, in time
logic systems require trip time signifi cantly long in correspondence of the power source.
Circuit breaker commands
Selection of setting profi les
Remote trip
Include I / O in the programmable logic (PLC)
etc. ..
Virtual Outputs:
The
t
V
,
t
F-IPh
and
t
F-IE
timers start when the virtual output becomes active; when the counters expire
the virtual outputs are forced OFF; if the
t
V
,
t
F-IPh
and
t
F-IE
timers are cleared the virtual output fol-
lows the state of the input (Start, Trip, IN).
The setting ranges are:
Start dropout time for voltage protections (
t
V
)
0.00...30.00 s (step 0.01 s)
Start dropout time for phase protections (
t
F -IPh
)
0.00...30.00 s (step 0.01 s)
Start dropout time for ground protections (
t
F -IE
)
0.00...30.00 s (step 0.01 s)
Trip reset (
t
Trip)
0.00...30.00 s (step 0.01 s)
All the parameters are available inside the
Set \ Virtual Outputs \ Settings
menu.
Virtual Inputs:
LinkLoss timer
3.0...60.0 s (step 0.1 s)
When the Virtual input is set for Remote Trip function, in the event of a network crash, when the
counters expire the remote trip is forced.
The parameter is available inside the
Set \ Virtual Inputs \ Settings
menu.
Note 1 For a detailed description please refer to the application notes
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PROTECTION RELAY
Pro-N & Pro-NX
IN32
OUT1
OUT2
OUT...
OUT16
IN...
IN3
IN2
IN1
PROTECTION RELAY
Pro-N & Pro-NX
IN32
OUT1
OUT2
OUT...
OUT16
IN...
IN3
IN2
IN1
freely customizable connections
