
APPENDIX
195
NA20 - Manual - 04 - 2022
49 Trip threshold
Dth>
DThe-
taB
1.100 ... 1.300 step = 0.001
Dth> Logical block
Dth>BLK1
OFF | ON
Dth> Input selective block
Dth>BLK2IN
OFF | ON
Dth> Output selective block
Dth>BLK2OUT
OFF | ON
Dth> Breaker failure
Dth>BF
OFF | ON
Disabling Dth> by 50-51 start
Dth>disby50-51
OFF | ON
Dth> Trip relays
Dth>-K
K1 | K2 | K3 | K4 | K5 | K6 |
Dth> Trip LEDs
Dth>-L
START | TRIP | L1 | L2 | L3 | L4 | L5 |
Phase overcurrent - 50/51
I> Element
Setpoints
I> Enable
I> Enable
OFF | ON
I> Curve type
I>Curve
IEC/BS A | IEC/BS B | IEC/BS C | IEC/BS B LI |
ANSI/IEEE MI | ANSI/IEEE VI | ANSI/IEEE EI |
RECTIFIER | I2t | EM | DEFINITE
ICLP> Mode
ICLP> Mode
OFF | ON - Element blocking | ON - Change setting
ICLP> Activation time
Value
s
0.00 ... 9.99 step = 0.01
10.0 ... 100.0 step = 0.1
I> Reset time delay
Value
s
0.00 ... 9.99 step = 0.01
10.0 ... 100.0 step = 0.1
I> Logical block
I>BLK1
OFF | ON
I> Input selective block
I>BLK2IN
OFF | ON
I> Output selective block
I>BLK2OUT
OFF | ON
I> Second harmonic restraint
I>2ndh-REST
OFF | ON
I> Breaker failure
I>BF
OFF | ON
I> Start relays
I>ST-K
K1 | K2 | K3 | K4 | K5 | K6 |
I> Trip relays
I>TR-K
K1 | K2 | K3 | K4 | K5 | K6 |
I> Start LEDs
I>ST-L
START | TRIP | L1 | L2 | L3 | L4 | L5 |
I> Trip LEDs
I>TR-L
START | TRIP | L1 | L2 | L3 | L4 | L5 |
Definite time
50/51 First threshold definite time
State
OFF | ON
Pickup value
In
0.100 ... 0.999 step = 0.001
1.00 ... 9.99 step = 0.01
10.0 ... 40.0 step = 0.1
I>def within CLP
ICLP>def
In
0.100 ... 0.999 step = 0.001
1.00 ... 9.99 step = 0.01
10.0 ... 40.0 step = 0.1
I>def Operating time
Value
s
0.04 ... 9.99 step = 0.01
10.0 ... 99.9 step = 0.1
100 ... 200 step = 1
Inverse time
50/51 First threshold inverse time
State
OFF | ON
Pickup value
In
0.100 ... 0.999 step = 0.001
1.00 ... 20.00 step = 0.01
I>inv within CLP
ICLP>inv
In
0.100 ... 0.999 step = 0.001
1.00 ... 20.00 step = 0.01
I>inv Operating time
t>inv
s
0.02 ... 9.99 step = 0.01
10.0 ... 60.0 step = 0.1
I>> Element
Setpoints
I>> Enable
I>> Enable
OFF | ON
Содержание NA20
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