Thytronic NC20 - Page 62

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62
NC2 0 - Manual - 01 - 2015
FUNCTION CHARACTERISTICS
Logic diagram concerning the second threshold (I2>>) of the phase balance element - 46
46S2_BL-diagram.ai
Binary input INx
T0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Binary input INx
T0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Binary input INx
T0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Binary input INx
T0
Logic
INx t
ON
INx t
ON
INx t
OFF
T0
n.o.
n.c.
INx t
OFF
Block2 IPh
Block2 IPh/IE
ModeBLIN1
T0
t
B-Iph
≥1
≥1
≥1
≥1
≥1
t
B-Iph
t
B-IE
BLK1I2>
&
&
BLK2IN I2>
&
&
Enable (ON≡Enable)
I2>>BLK1
Block2 input enable (ON≡Enable)
Pilot wire input
&
I2>>BLK2IN
Block1
BLK2IN-Iph
Start I
2
>
Trip I
2
>
Iph Block2
IE Block2
BLK2IN-IE
tB timeout
Block2 input
tB-K
tB-L
Block1
FROM EARTH FAULT PROTECTIONS
FROM ANY PROTECTIONS
OFF
ON IPh
ON IPh/IE
ON IE
BLIN1
Block1
T0
t
B-IE
Block2 IE
Block1, Block2
TRIPPING MATRIX (LED+RELAYS)
≥1
≥1
Pilot wire output
TRIPPING MATRIX (LED+RELAYS)
ModeBLOUT1
A
B
C
D
BLOUT1
Block2 output
≥1
t
F-IPh
t
F-IPh/IE
t
F-IE
ST-Iph BLK2
ST-IE BLK2
T0
t
F-IPh/IE
T0
t
F-IPh
T0
t
F-IE
BLK2OUT-Iph
BLK2OUT-Iph/IE
BLK2OUT-IE
A = OFF
B = ON IPh
C = ON IPh/IE
D = ON IE
BLK2OUT-IPh-K
BLK2OUT-IPh-L
BLK2OUT-IPh/IE-K
BLK2OUT-IPh/IE-L
BLK2OUT-IE-K
BLK2OUT-IE-L
&
Block2 output
(ON≡Enable)
I2>>BLK2OUT
I2>>
≥1
I
E
>> Block2 OUT
I
E
> Block2 OUT
I
E
>>> Block2 OUT
≥1
I>
RMS
Block2 OUT
I
N
> Block2 OUT
I
N
>> Block2 OUT
I>> Block2 OUT
I>>> Block2 OUT
DthAL1 Block2 OUT
DthAL2 Block2 OUT
Dth Block2 OUT
I
2
> Block2 OUT
I
2
>> Block2 OUT