160
NVA100X-D - Manual - 02 - 2016
FUNCTION CHARACTERISTICS
Residual overcurrent (50N.1/51N.1) - Logic diagram of the blocking signals concerning the second element (IE>>) Sheet 2 of 2
IE1>>BLK1
Start
I
E1
>>
Start
I
E1
>>
Trip
I
E1
>>
Pilot wire output
TR
IP
P
ING
M
ATR
IX
(LED
+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
&
Block2 output
(ON
≡
Enable)
IE1>>BLK2OUT
T
0
t
F-IPh/IE
T
0
t
F-IPh
T
0
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
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
50N-51NS2_BL-diagram.ai
≥
1
≥
1
≥
1
≥
1
t
B-Iph
t
B-IE
BLK1IE1>>
BLK4IN IE1>>
&
&
&
BLK2IN IE1>>
&
&
Enable (ON
≡
Enable)
Block2 input enable (ON
≡
Enable)
Pilot wire input
&
IE1>>BLK2IN
Block1
BLK2IN-Iph
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
Block4
Block1
T
0
t
B-IE
Block2 IE
≥
1
Block1, Block2, Block4
TR
IP
P
ING
M
ATR
IX
(LED
+R
EL
AY
S
)
≥
1
≥
1
I
E1
>> Block2
All other BLK2OUT outputs
of ground elements
(see BLK2OUT chapter)
≥
1
All BLK2OUT outputs
of phase elements
(see BLK2OUT chapter)
≥
1
Start
I
E1
>>
I
E1
>> Block4 I/O
I
E1
>> Block4
IE1>>BLK4
IE1>>BLK4
t
FI-Iph
ST-IE1 BLK4
ST-Iph BLK4
≥
1
t
FI-IE
Block4 OUT
T
0
t
FI-Iph
T
0
t
FI-IE
Block4
Block4
A = IN
B = OFF
C = OUT
B
C
“0”
“0”
A
Block4 enable
A = IN
B = OFF
C = OUT
C
B
A
“0”
“0”
All other BLK4 I/O
of ground elements
(see BLK4 chapter)
≥
1
All BLK4 I/O
of phase elements
(see BLK4chapter)
≥
1