User Manual

DIR 1000587R0002 (L3821)
(17)
L
(t=k/I
2
)     0.4xIn ≤ I
1
≤1xIn  3s≤t
1
≤144s
(1)
,step3s  Releasebetween  ±10%,I
f
≤6In
curvesIEC60255-3      step0.01xIn  t1@3I
1
1.05and1.2xI1±20%,I
f
>6In
S
1
    0.6xIn≤ I
2
≤10xIn  Min,0.05s≤t
2
≤0.8s,step0.01s ±7%,I
g
≤6In Thebestofthetwodata
(t=k)     step0.1xIn  0.10s≤t
2start-up
≤30s,step0.01s ±10%,I
g
>6In ±10%or40ms
     0.6xIn≤ I
2start-up
≤10xIn  0.04s≤t
2sel
≤0.20s,step0.01s  
     step0.1xIn
S
1
    0.6xIn ≤ I
2
≤10xIn  0.05s≤t
2
≤0.8s,  ±7%,I
g
≤6In ±15%,I
g
≤6In
(t=k/I
2
)     step0.1xIn  step0.01at10xIn  ±10%,I
g
>6In ±20%,I
g
>6In
I     1.5xIn≤ I
3
≤ 15xIn  ≤30ms  ±10% 
(t=k)     step0.1xIn      
G
(3)
    0.20xIn≤ I
4
≤1xIn 0.1s≤t
4
≤ 1s,step0.05s    Thebestofthetwodata
(t=k)     step0.02xIn  0.1s≤ t
4start-up
≤1s,step0.02s ±7%  ±10%or40ms
        0.04s≤t
4sel
≤0.2s,step0.01s      
     whenI>I4 
G
(3)
    0.20xIn≤ I
4
≤1xIn 0.1s≤t
4
≤1s,step0.05s  ±7%  ±15%
(t=k/I
2
) step0.02xIn @I
g
>4In
U     2%≤ I
6
≤90%  0.5s≤t
6
≤60s,step0.5s  ±10%Thebestofthetwodata
(t=k)     step1%      ±10%or40ms
OT     Fixed,dened  Instantaneous  ±5°C  _____ 
(temp=k)     byAB
Iinst     Automatic,dened  Instantaneous        
     byAB
MM     1.5xIn≤ I
5
≤ 4xIn  ≤30ms  ±10% 
(t=k)     step0.1xIn
Load control     50%÷100%step0.05xI
1
LC1/LC2
Warning Iw     0,3÷10I
n
step0,05xI
n 
±10% 10÷40ms
3.1.9.9 Summary table of the protection function settings for the LSIG-MM
Protection
Threshold
range
Time Tolerance
(2)
Time
range
Threshold
tolerance
(2)
Disabling Disabling TRIP only Start-up threshold Thermal memory
(1)
Theminimumvalueofthistripis1sregardlessofthetypeofcurveset(self-
protection)
(2)
Thesetolerancesapplyunderthefollowingconditions:
- self-powered relay at full power (without start-up)
- presence of auxiliary power supply
- two-phase or three-phase power supply
-presettriptime≥ 100ms
(3)
 ProtectionGisdisabledforcurrentvaluesgreaterthan4In,whereI4<0.4
In,greaterthan6In,where0.5In≤I4<0.8Inandgreaterthan8InwhereI4
≥0.8In.
Forallcases notcovered by the above assumptions, the following tolerance
valuesapply
Protections Trip threshold Trip time
L Releasebetween1.05and1.25xI1 ±20%
S ±10% ±20%
I ±15% ≤ 60ms
G ±10% ±20%
Others  ±20%
3.1.9.10 Table of measurements
Typeofmeasurement   Tolerance
   Range   %
Phaseandneutralcurrents 0.3...6In  1.5
Internalgroundfaultcurrent 0.3...4In  1.5
(internalsourcegroundreturn) 
Peakfactor  0.3...6In  1.5