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SME2-IS - Manual - 06 - 2021
FUNCTIONAL CHARACTERISTICS
Virtual I/O
Foreword
The Thyvisor and ThyVisor applications allow you to dene the type of operation of and the connec-
tions between the virtual outputs (Virtual Output - VOUT1...16) and inputs (Virtual Inputs - VIN1...VIN32)
using the RPC or IEC 61850 protocols over Ethernet.
The system:
[1]
• Provides sixteen outputs and thirty two inputs, all independently programmable by the user
• Simplies cabling, since it uses Ethernet as the single channel
• Does away with the need to install external communications and conversion equipment
• Signicantly reduces costs
• Enables dynamic modication of the connections and their associated functions in software.
Applications
The SME-2I's virtual I/O can be used for:
1) Transmitting information between protections at large distances from each other, for which con-
ventional signal connections would have critical reliability issues.
2) Implementing accelerated logical selectivity, in which certain protection functions may be blocked
by the activation of the start output of downline protections
3) Operating the circuit breaker
4) Selecting regulation banks
5) Remote tripping
6) Inserting I/O into programmable logic (PLC)
7) etc.
Virtual Outputs:
Timers t
V
, t
F-IPh
and t
F-IE
start when the virtual output is activated; at the end of the count, the virtual
outputs are deactivated (OFF); if the timers t
V
, t
F-IPh
and t
F-IE
set to zero, the virtual output follows the
state of the associated signal (start, trip, IN).
The operational ranges are:
Voltage protection start drop-out time (t
V
) 0.00...30.00 s (step 0.01 s)
Phase protection start drop-out time (t
F-IPh
) 0.00...30.00 s (step 0.01 s)
Ground protection start drop-out time (t
F-IE
) 0.00...30.00 s (step 0.01 s)
Tripping drop-out time (t
Trip)
0.00...30.00 s (step 0.01 s)
All parameters are available in the menu Set \ Virtual Outputs \ Settings.
Virtual inputs
LinkLoss timer 3.0...60.0 s (step 0.1 s)
When a virtual input is set to remote tripping, the remote trip is commanded if the communications
network fails, once the counter has counted down.
All parameters are available in the menu Set \ Virtual Inputs \ Settings.
Note 1 Given the numerous possible applications, refer to the application notes for detailed information
- Funzioni di protezione e controllo
27 Minima tensione
27V1 Minima tensione di sequenza diretta
59 Massima tensione
59V2 Massima tensione di sequenza inversa
59N Massima tensione residua
59Uavg Massima tensione mediata
81O Massima frequenza
81U Minima frequenza
81R Derivata di frequenza
BF Mancata apertura interruttore
74TCS Monitoraggio del circuito
di apertura dell’interruttore
ARF Richiusura automatica per fotovoltaico
(opzionale)
PROTECTION RELAY
Thytronic
IN32
OUT1
OUT2
OUT...
OUT16
IN...
IN3
IN2
IN1
PROTECTION RELAY
Thytronic
IN32
OUT1
OUT2
OUT...
OUT16
IN...
IN3
IN2
IN1
freely customizable connections