usps of matrix protection releases

7/30/2019 USPs of Matrix Protection Releases

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U-POWER OME

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U-POWER OMEGA ACB + MATRIX protection releases

L&T-EAIC-ESP-Powergear-ACB-Product Marketing Team Page 3

Unique OLED display

Technology - the great enabler of human activities is forever mutating.CRT (cathode ray tube) TVs and computer monitors have made an imposing presence for a very

long time. Today the domination of CRTs is over with the arrival of LCD, Plasma, DLP and LED

screens & monitors. These advances in screens/monitors technology are changing the human

experience & businesses like never before.

Let us begin the comparison between LCD, LED & OLED screens/monitors with an

explanation of fundamental differences.

1) Basic Difference: Unlike CRT monitors that generate their own light through cathoderay incidence on fluorescent materials, both LCD & LED displays rely on external lightingas their display is created through manipulation of light passing through polarized liquidcrystals.

LED and LCD monitors are based on the same basic technology for image display

but differ in the kind of backlighting used. Both LCD & LED monitors/displays have two

layers of glass which are polarized and stuck together. The liquid crystals are held in oneof the layers. These liquid crystals pass, or block the light, to produce images on the

screen when the electric current passes through it, effectively acting as optical switches.

However, the crystals do not produce their own light.

While LCD monitors use Cold Cathode Fluorescent Lamps (CCFL) forbacklighting, LED monitors use light emitting diodes (LED). This is the main difference

between the two display technologies.OLED screens delivery an image to the screen in a very different way to that of

an LCD or LED screen.An organic light emitting diode (OLED) is a light-emitting diode (LED) in which

the emissive electroluminescent layer is a film of organic compounds which emit (red,

green and blue) ldight in response to an electric current. This layer of organicsemiconductor material is situated between two electrodes.

The crystals used in LCD & LED screen do not produce the light by itself; lighting isderived from an external light source at the back of the screen, on the other hand OLEDs

generate their own light, and so OLED displays do not require external backlighting; which

means OLED screens can be made thinner and lighter.

2) Contrast and Black Levels:- Standard LCD screens have a backlight which is constantlyon during use. Dark areas are created by "turning" the light away from the LCD panel,resulting in a low contrast level and poor clarity in dark scenes. With LED screens the

light emitting diodes are dimmed locally to create deeper blacks in specific areas of thescreen, which can also allow for better detail in dark scenes. LED screen offers better

dynamic contrast ratio.In line with LED screens, OLED screens produce the light on demand thus giving

very high contrast ratio even compared with LED screens. Both LED & OLED screen give

true black which LCD cant offer.

3) Power consumption:- In inactive mode LCDs filter the light emitted from a backlight,allowing a small fraction of light through (cannot show true black) thus consume power

when inactive, contrary to that an inactive OLED element does not produce light orconsume power. OLED screen gives rich picture quality & require a lot less power

(generally 20-30% lower power consumption) to operate than LCD screens.


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4) Viewing Angle: - OLED screen offers wider off-axis viewing angle compared to LCDsbecause OLED pixels directly emit light. OLED pixel colours appear correct and un-shifted, even as the viewing angle approaches 90 from normal i.e. (almost 170 0 wide

angle of viewing).

5) Response time: - OLEDs have a faster response time than standard LCD screens.Whereas LCD displays are capable of between 2 and 8 ms response time offering a frame

rate of +/-200 Hz, an OLED can theoretically have less than 0.01 ms response timeenabling 100,000 Hz refresh rates.

6) Eco friendly: - OLED screens are a lot more eco-friendly because mercury is not used intheir production. Being organic polymer OLEDs can be recycled far more easily

compared to LCD screens.

7) Lower cost base: - OLEDs can be manufactured using a simple continuous method atlow temperature, rather than the batch processing in high temperature clean-roomconditions necessary for LCDs. This means that a far lower cost base is attainable for

OLEDs in volume production, compared to LCD and plasma FPDs.

OLED: The principle of OLED technology is that when current flows between a cathode and ananode, an emissive layer of organic molecules (e.g. polyaniline, green in diagram) sandwiched

between these electrodes can become illuminated (electroluminescence). For this to happen

efficiently, a layer known as the conductive layer (orange in diagram), made up of organic

plastic molecules such as polyfluorene, lies between the emissive layer and the anode. Theanode is positively charged and therefore draws electrons from the conductive layer, leaving the

conductive layer with a positive charge that draws electrons from the emissive layer. Light isemitted as a by-product, in a process known as electro-phosphorescence.

The OLED process is explained in the diagram below:


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The OLED layers described above total a thickness of around 100-500 nanometres, which is

around 100 times thinner than human hair. This makes them extremely fragile and hence they

must be supported by an additional substrate layer. This substrate is usually clear plastic, foil orglass of varying thickness, and must be transparent, like the anode, so that the emitted light can

be seen on the OLED monitor screen. The layering of an OLED cell can be seen below:


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The colour of light emitted from the emissive layer of an OLED monitor depends on the exact

organic makeup of the molecules within. As with LCD (liquid crystal display) monitors, OLED

units are made up of pixels of different colours; i.e. various organic molecules make up pixels

within the emissive layer which will emit light of different colours once illuminated. Thebrightness (light intensity) of an OLED monitor is proportional to the current applied to the cell.


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ZigBee wireless communication

Our innovative Matrix releases are designed to let consultants & system designers help theircustomers & end-users gain greater control of, and even improve, their everyday business &

process activities by means ofZigBee wireless communicationcapability.

Zigbee modules can be used for monitoring parameters of Matrix releases & its supplementarymodules like Relay, ZSI, E/F etc.

Monitoring parameters include:-1) Metering Data - Voltage, Current, Power, Energy, Power Factor, Online Module Status.2) Status Data - Alarm & Trip Status, Digital Input Output Module & Relay Module Status.3) Record Data - Trip Records, Event Records, Maintenance Records.

Lets first see whats the ZigBee a catchy name for sure, is all about & who needs it? Wealready have Bluetooth- and Wi-Fi enabled devices, and Wi-MAX and Wireless USB proliferation

are at the doorstep. Who needs another wireless standard?

First, lets understand that each wireless technology that makes it to market serves a special

purpose or function. Bluetooth and wireless USB provide short-range connectivity in what is

called a personal-area network (PAN). Bluetooth serves a short-range, moderate-speed, wirereplacer, and wireless USB provides short-range, high-speed device connectivity. Wi-Fi is for

local-area networks (LANs) and WiMAX is designed to provide wide-area networking (WAN) ormetropolitan-area networking (MAN). ZigBee fills yet another niche. It is a PAN technology

based on the IEEE 802.15.4 standard. Unlike Bluetooth or wireless USB devices, ZigBee deviceshave the ability to form a mesh network between nodes.

Meshing is a type of daisy chaining from one device to another. This technique allows the

short range of an individual node to be expanded and multiplied, covering a much larger area.


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One of the primary benefits of mesh architecture is that if an intermediary device fails, is offline,

or is busy, the message can still get through via an alternative path.

Mesh networks look for the most efficient path available and will automatically re-route

messages to avoid any failures. This is why mesh networks are often referred to as self-healing: the network automatically works around problems that it encounters. Mesh networksalso provide self-configuration, in that when a new device is added (or an existing device is

moved) the network automatically works out what type of device it is (e.g. router or enddevice), where its neighbours are, and determines the best path through the network. After

devices are configured, they regularly poll their neighbours to collect information about signalstrength and possible errors, so that they can recalculate transmission routes if required.

There are three categories of ZigBee devices:

ZigBee Network Coordinator. Smart node that automatically initiates the formation of thenetwork.

ZigBee Router. Another smart node that links groups together and provides multi-hopingfor messages. It associates with other routers and end-devices.

ZigBee End Devices. Where the rubber hits the roadsensors, actuators, monitors,switches, dimmers and other controllers.

One ZigBee network can contain more than 65,000 nodes (active devices). The network they

form in cooperation with each other may take the shape of a star, a branching tree or a net(mesh). Whats more, each device can operate for years off of a AA cell. That means that each

node uses little power. If one is looking for wireless monitoring and remote control solutions,

ZigBee may be the answer. Those are the functions for which ZigBee was designed. ZigBeenodes can be used to tie an entire home, office or factory together for safety, security and

control.

In short ZigBee networks provide smart, low-cost, low-power, low-maintenance monitoring and

control systems.


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Zigbee V/s BluetoothZigbee and Bluetooth have lots in common, like both operating in the same frequency

band of 2.4 GHz and belonging to the same wireless private area network (IEEE 802.15). But

even if this is the case, they are not exactly competing technologies. Also, there is a multitude of

differences between the two wireless technologies for personal area networks both in termas of

application and technical base. Whereas Bluetooth is geared towards user mobility andeliminating cabling between short-distanced devices, Zigbee is more oriented towards remotecontrol and automation.

Bluetooth aims at doing away with the cabling between devices that are in close

proximity with each other for example between mobile phone and a laptop or desktop or a

printer and a PC. Users with Bluetooth supported handsets are able to effortlessly exchange

documents, calendar appointments and other files.

Zigbee supports protocols for defining a type of sensor network that controls

applications used in residential, commercial & industrial settings. It harmonizes the application

software layers specified by the ZigBee alliance and the IEEE 802.15 that defines the physicaland MAC protocol layers.

Basic difference between Bluetooth & ZigBee wireless Protocols

Features Bluetooth ZigBee

Aims Mobile connectivity System automation

Standard IEEE 802.15.1 IEEE 802.15.4

Modulation techniqueFrequency Hopping

Spread Spectrum (FHSS)

Direct Sequence Spread

Spectrum (DSSS)

Operating frequency 2.4 GHz ISM868MHz, 902-928MHz,

2.4GHz ISM

Protocol stack size 250K bytes 28K bytes

Maximum network speed 1M bit/sec 250K bit/sec

Network range 10 meters (100+meters

depending on radio)

10-100 meter(extension

upto 400 metersAs per design(Special kit or outdoor)

Typical network join time 3 seconds 30 milliseconds

Network Topology Adhoc PicoNet Adhoc, Star, Mesh hybrid

Nos. of devices per network 8 2 to 65000

Netwrok LatencyNew slave enumeration 20s 30ms

Sleeping slave changing to active 3s 15ms

Active slave channel access time 2ms 15ms

Complexity Complex Simple

Scalability/Extendability Low / No Very High / Yes

Security 64, 128 bits

128 bits AES, &

application layer userdefinable

Power consumption (Durability) High (lasts for Days) Very low (lasts for Years)


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Smart card module

Matrix releases support the Smart card feature. Smart cards can read & write the releaseprotection setting.

In a large electrical installations, where many ACBs are in use; one can copy the release

protection parameters setting on smart card and then copy the parameters on the various

releases. Smart card feature in MTX releases with its ease of use can reduce the gestation periodof the electrical installation.

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