Thytronic NC20 User Manual

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NC2 0 - Manual - 01 - 2015
FUNCTION CHARACTERISTICS
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.
[1]
Reset CB Monitor
A change in status of a binary input effects a reset of all counters concerning the circuit breaker
diagnostic:
Breaking Sum phase I
L1
Breaking Sum phase I
L2
Breaking Sum phase I
L3
Breaking SumI
2
t phase I
L1
Breaking SumI
2
t phase I
L2
Breaking SumI
2
t phase I
L3
CB Open counter
52a-52b
The CB position can be acquired by means of binary inputs connected to the auxiliary contacts: the
information is used in the following functions:
CB position (open-closed)
CB diagnostic (N. of operations, trip time)
Breaker Failure (BF)
Note 1 The reset of the total counters is practicable by means ThySetter command with Session Level 1 (available with password)
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TCS2.ai
TRIP
+UAUX
Trip Circuit Supervision - 74TCS with two binary inputs
-UAUX
52a 52b
52
TCS1
TCS2
74TCS logic
74TCS logic
Binary input INx
T0
IN1 t
ON
0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
IN1 t
OFF
Binary input INx
T0
IN1 t
ON
0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
IN1 t
OFF
TCS2.ai
TRIP
+UAUX
Trip Circuit Supervision - 74TCS with two binary inputs
-UAUX
52a 52b
52
TCS1
TCS2
74TCS logic
74TCS logic
Binary input INx
T0
IN1 t
ON
0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
IN1 t
OFF
Binary input INx
T0
IN1 t
ON
0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
IN1 t
OFF
ExtProt.ai
Binary input allocation for trip acquisition from external protection device
Breaker failure (BF)
+UAUX
-UAUX
IN-
IN+
Trip ProtExt
Binary input INx
T0
INx t
ON
T0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
INx t
OFF
ExtProt.ai
Binary input allocation for trip acquisition from external protection device
Breaker failure (BF)
+UAUX
-UAUX
IN-
IN+
Trip ProtExt
Binary input INx
T0
INx t
ON
T0
n.o.
n.c.
IN1 tON
Logic
IN1 tOF F
INx t
OFF
CB-pos.ai
CB position
CB diagnostic
Breaker failure (BF)
74VT
52a
52
52b
UAUX
UAUX
INx
INx
52a
52b
Binary input INx
T0
IN1 t
ON
T0
n.o.
n.c.
INx tON
Logic
INx tOF F
IN1 t
OFF
Binary input INx
T0
IN2 t
ON
T0
n.o.
n.c.
INx tON
Logic
INx tOF F
IN2 t
OFF
Binary input allocation for CB state acquisition
CB-pos.ai
CB position
CB diagnostic
Breaker failure (BF)
74VT
52a
52
52b
UAUX
UAUX
INx
INx
52a
52b
Binary input INx
T0
IN1 t
ON
T0
n.o.
n.c.
INx tON
Logic
INx tOF F
IN1 t
OFF
Binary input INx
T0
IN2 t
ON
T0
n.o.
n.c.
INx tON
Logic
INx tOF F
IN2 t
OFF
Binary input allocation for CB state acquisition

Thytronic NC20 Specifications

General

Brand	Thytronic
Model	NC20
Category	Power distribution unit
Language	English