L&T Electrical & Automation OMEGA, Manual

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29
Matrix
" Redefining Modularity"
MTX4.5
MTX3.5EC
Basic Protection Unit
Communication Modules
(Modbus, Profibus, Zigbee)
Smart Card Module
Power Metering Module
Matrix releases designed for “Flexibility, Scalability & Customization” offer wide variety of withdrawable modules
such as Modbus, Profibus, Zigbee, Smart Configurator & Power metering. To start with one can go for a basic version
of MTX3.5 release and based on future needs and system demands, one can upgrade the protection release with
Power metering & Communication modules.
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30
Matrix
Protection and Control Units
• • •
• •
• •
• •
•
•
•
2 Overload, Short-circuit & I t ON curve for Short-circuit Inbuilt rating-plug through
Instantaneous protection with & Earth-fault protection DIP switches
adjustable current & time- Current Metering in Test button to check the
delay settings MTX1.5G/1.5Gi through health of protection release
Inbuilt Earth-Fault & neutral 3-line O-LED display Self-powered protection
protection in MTX1G/1Gi & Local fault annunciation Inbuilt Zone Selective
MTX1.5G/1.5Gi through LED indication & Interlocking (ZSI) in MTX1Gi
Switchable thermal memory pre-trip alarm & MTX1.5Gi
for cable protection on Front accessible test port
repetitive overloads Query button for last trip
record
Features:
Protection parameters:
Parameters MTX1.0 MTX1G MTX1.5G MTX1.5Gi MTX1Gi
Protection: Enable/Disable
ü ü ü ü ü
OFF- 0.4-0.5-0.6-0.7-0.8-0.85-0.9-0.95-1
2
Pick-up (Ir)=In x... for I t
Instantaneous
Earth-Fault
2
I t OFF (tg)
-
0.1-0.2-0.3-0.4-1
Overload (Neutral)
Delay (tr) in s
-
Same as Overload Phase
Short-Circuit
Delay (ts)
20-100-200-300-400 ms
Overload (Phase)
Pre-alarm
-
0.8 x (fixed) I
N
Pre-alarm
0.9 x (fixed) Ir
Pre-alarm
0.5 x Is (fixed)
-
-
- -
-
Pre-alarm
Short Circuit Enable/Disable
Earth Fault Enable/Disable
0.8 x Ig (fixed)
-
2
I t ON (tg)
0.1-0.2-0.3-0.4
Delay (tr) in sec
0.5-1-2-4-6-12-18-24-30 10
Thermal Memory ON/OFF
ü ü ü ü ü
Protection: Enable/Disable
-
ü ü ü ü
2
I t ON/OFF ü ü ü ü ü
ü Protection: Enable/Disable ü ü ü ü
-
Protection: Enable/Disable ü ü ü ü
-
2 I t : ON/OFF
ü ü
ü
ü ü
ü
ü ü
Protection: Enable/Disable
- - - - -
-
50%-100%-150%-200% Pick-up (I )=Ir x...
N
0.6-1-1.5-2-3-4-6-8-10-12
Pick-up (Is)=In x...
OFF-1.5-2-3-4-6-8-10-12-15 Pick-up (Ip)=In x...
-
OFF-0.2-0.3-0.4-0.5-0.6
Pick-up (Ig)=In x...
Inbuilt-ZSI
- -
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UW-MTX 1.5G
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UW-MTX 1.5Gi
UW-MTX1.0
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UW-MTX1G/1Gi UW-MTX1.5G/1.5Gi
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UW-MTX 1G
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UW-MTX 1Gi