L&T Electrical & Automation OMEGA, Manual

Page: 35 / 135

33
Matrix
Protection and Control Units
Oscillograph of fault current waveforms UW-MTX4.5
(10 cycles before pick-up/Trip & 5 cycles
Overload, Short-circuit and Earth-fault
after pick-up/Trip)
protection with variable current & time
Metering of sequence components of
delay setting
current waveform, form factor, peak
2 4
I t, I t, SI, LI/VI protection curves
factor
Navigation through Touch-Screen Additional current & voltage based
protections
Bar-graph representation of current,
voltage & power parameters
Protection against temperature rise
Directional & Double Short-circuit Advance protection - ZSI, TCS, REF & EL
protection
Communication through Modbus,
Instantaneous protection Profibus & wireless Zigbee
2 Local & remote fault annunciation &
Selectable I t based curves for Short-
pre-trip alarm
circuit and Earth-fault protection
Dual time-based protection set groups
Switchable neutral overload protection
(50%-200%) in step
Thermal reflectivity & soft rating-plug
of 5%
Self-powered protection
Harmonics metering up to 27th order
Trip & Event recording
of fundamental frequency along with
display of THD percentage
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Simulation Kit for Matrix releases
Generates 3 phase current and voltage with
adjustable phase angles
Graphical display & smart GUI with multi-
functional key operation
Portable & hand held device to simulate faults
Dual Power ON-battery & external supply
Auto sensing of release connectivity
Stores 10 test records
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Universal test kit for all versions of Matrix releases
M X4 UW- T .5
UW-MTX4.5
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?
Basic protection in UW-MTX 3.5/3.5EC/3.5H/4.5 Series
Overload (Phase)
Overload (Neutral)
Short-Circuit
Directional Short-Circuit
Instantaneous
Earth-Fault
Parameter
Protection : Enable/Disable
2 4 Pick-Up (Ir)=In x ...for I t, l t, SI, LI/VI
Delay(tr) in s
Pre-alarm
Thermal Memory ON/OFF
Protection: Enable/Disable
Pick-Up I =Ir x ...
N
Pre-alarm
Delay(tr) in s
Protection: Enable/Disable
Double S/C ON/OFF
2
l t ON/OFF
Pick-Up Lo, ls=In x ...
Pick-Up Hi, ls=In x ...
Delay Hi (ts)
Delay Lo (ts)
Pre-alarm
Cold Pick-Up ON/OFF
Cold Delay
Protection: Enable/Disable
Direction: Top/Bottom
2
l t: ON/OFF
Pick-up(ls): ln x ...
Delay(ts)
Pre-alarm
Cold Pick-Up ON/OFF
Cold Delay
Protection: Enable/Disable
Pick-up(lp)=ln x ...
Protection: Enable/Disable
2 l t: ON/OFF
Pick-Up(lg)=ln x ...
2
l t OFF(tg)
2 l t ON(tg)
Pre-alarm
Cold Pick-Up: ON/OFF
Cold Delay
UW-MTX3.5
0.4 to 1 In in step of 0.05
0.5-1-2-4-6-12-18-24-30
0.5 to 0.95 in step of 0.05 x lr
0.5 to 2 in step of 0.05
0.5 to 0.95 in step of 0.05 x I
N
same as Overload Phase
0.6 to 12 In in step of 0.05
0.6 to 12 In in step of 0.05
20-100-200-300-400 ms
20-100-200-300-400 ms
0.5 to 0.95 in step of 0.05 x ls
100 ms to 10s in step of 100ms
0.6 to 12 In in step of 0.05
20-100-200-300-400 ms
0.5 to 0.95 in step of 0.05 x ls
100 ms 10s in step of 0.05 x ls
1.5 to 10 in step of 0.1; 10 to 15 in step of 1
0.1-0.2-0.3-0.4-0.5-0.6
100 ms to 1s in step of 100 ms
100-200-300-400 ms
0.5 to 0.95 in step of 0.05 x lg
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
100ms to 5sec in step of 100 ms
UW-MTX3.5EC
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
UW-MTX3.5H/4.5
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
34
Matrix
Protection and Control Units
UW-MTX3.5H
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P