
FUNCTION CHARACTERISTICS
66
NA20 - Manual - 04 - 2022
Thermal image (49) - Logic diagram of the blocking signals concerning the trip element
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Binary input INx
T
0
Logic
INx
t
ON
INx
t
ON
INx
t
OFF
T
0
n.o.
n.c.
INx
t
OFF
Block2 IPh
Block2 IPh/IE
ModeBLIN1
T
0
t
B-Iph
49_BL-diagram.ai
≥
1
≥
1
≥
1
≥
1
t
B-Iph
t
B-IE
BLK1Dth>
&
BLK2IN Dth>
&
&
Enable (ON
≡
Enable)
Dth>BLK1
Block2 input enable (ON
≡
Enable)
Pilot wire input
&
DTh>BLK2IN
Block1
BLK2IN-Iph
Dth>
Iph Block2
IE Block2
BLK2IN-IE
tB timeout
Block2 input
tB-K
tB-L
Block1
FROM GROUND PROTECTIONS
FROM PHASE PROTECTIONS
FROM ANY PROTECTIONS
OFF
ON IPh
ON IPh/IE
ON IE
BLIN1
Block1
T
0
t
B-IE
Block2 IE
≥
1
Block1, Block2
TR
IP
PIN
G
M
AT
RIX
(
LE
D+R
EL
AY
S)
≥
1
≥
1
&
Block2 output
(ON
≡
Enable)
Dth>BLK2OUT
Dth>
Pilot wire output
TR
IP
PIN
G
M
AT
RIX
(
LE
D+R
EL
AY
S)
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
≥
1
T
0
t
F-IPh/IE
T
0
t
F-IPh
T
0
t
F-IE
I
> Block2 OUT
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
I
>> Block2 OUT
I
2> Block2 OUT
I
2>> Block2 OUT
I
>>> Block2 OUT
DthAL1
Block2 OUT
DthAL2
Block2 OUT
Dth
Block2 OUT
≥
1
I
E
>> Block2 OUT
I
E
> Block2 OUT
I
E
>>> Block2 OUT
Содержание NA20
Страница 207: ...APPENDIX 207 NA20 Manual 04 2022...