CHARACTERISTICS
30
NV10B - Manual - 04 - 2022
Block1
A change in status of a binary input effects a block for a length of time equal to the activation of the
input[1]; the element pickup that wish be blocked must be enabled (the
Block1
parameter must be
set to
ON
in the concerning menu).
[2]
The application of the IN1 binary input for the acquisition of the Block1 (logic block) coming from
external signal is shown in the following figure; in the example the block signal is ORed with Block2
(selective block) to block the generic (xxx) element.
TCS1 and TCS2
Trip Circuit Supervision.
Supervision with one or two binary input can be performed.
The exhaustive treatment of the TCS function is described in the concerning paragraph.
Trip ProtExt
The binary input detects a trip coming from an external protective relay: the information is available
for the breaker failure function (BF).
Reset counters
A change in status of a binary input effects a reset of all start/trip partial counters.
[3]
Reset CB Monitor
A change in status of a binary input effects a reset of all counters concerning the circuit breaker
diagnostic: CB Open counter
Note 1 The Block1 (logic block) keeps block of the protection for the whole time when the input is active.
Note 2 The activation of one binary input produces indiscriminately a block of all protective elements programmed for being blocked from Block1
Note 3 The reset of the total counters is practicable by means ThyVisor command with Session Level 1 (available with password)
Block1.ai
xxxx Block1
Enable (ON
≡
Enable)
Block1 input (ON
≡
Block)
Block1
&
Block1
Block1
Binary input IN1
Binary input allocation for logic block
(Block1)
Blocking
T
0
IN1
t
ON
T
0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
IN1
t
OFF
TCS2.ai
TRIP
+
U
AUX
Trip Circuit Supervision - 74TCS with two binary inputs
-
U
AUX
52a
52b
52
TCS1
TCS2
74TCS logic
74TCS logic
Binary input IN1
T
0
IN1
t
ON
0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
IN1
t
OFF
Binary input IN1
T
0
IN1
t
ON
0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
IN1
t
OFF
ExtProt.ai
Breaker failure (BF)
+
U
AUX
-
U
AUX
IN-
IN+
Trip ProtExt
Binary input IN1
T
0
IN1
t
ON
T
0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
IN1
t
OFF
Binary input allocation for trip acquisition from external protection device