GML-3GPRS BASED METER AND

LOGGERTHREE PHASE METER WITH INBUILT DATA LOGGER

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Visit us at www.embuilt.comOr

For see live demo of energy monitoring system logon to www.emdata.in

GML-3

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•Three phase energy measurement

•GPRS based logging

•No need of computer for logging

•Accuracy class 0.2

•All energy parameter will display on LCD for clear view

•Multifunction meter

•Can view and set real date and time.

• Can store 100 continuous events

• Sent SMS on event and alarm

• Upload event information on server with its date and time

• Input voltage range is 10V to 250 V (Normally) and 999KV with PT.

• Current range is 10 mA to 5 A normally and 999A with CT

•Normal sim card of any provider is used

IntroductionGML-3 is GPRS Based three phase meter with inbuilt data

logger.It measures three phase electrical parameters and logs it

on server.It has inbuilt GSM interface so you don’t need computer

for data logging.It can be accessed by using buttons on it or by visit

www.emdata.in .It has also interfacing with temperature and humidity

sensor.

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FeaturesAnywhere anytime online data access by visit

www.emdata.in .Data is secure on our server.Meter accuracy is 0.2 .Direct SMS and E-mail alerts for alarm notification and data

notification.Unlimited data storage on server.SD Card back for network outage so your data doesn’t lost.

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Analysis of graph data

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Voltage Graph

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In above graph we can see the voltage fluctuation this may be due to use external energy source like generator or ups or main line. If main line in use then we can find the trends that the load at that time is high on the locality.

Voltage Graph 2

In this You can see the maximize graph. Voltage fluctuation and also voltage absence is shown in this graph. It shows the voltage supply is absence between 5:00 to 06:30. So, may be your production will be stopped at this time. The voltage presence and absence called a event and it is available on server. You can also notify for it by SMS and EMAIL.

Voltage AnalysisThe graph shows the values of average voltage.You can see the voltage fluctuations and also

the values at any point.The voltage fail is also shown so you will know

what is the trend of voltage presence at these time.

Set alarm and event for voltage high and low values.

You will get notified by SMS and EMAIL for events and alarms.

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Voltage AnalysisLow voltage can heat up your machines if

using no data logger you will not know if machine burn after some time.

You will know the faulty supply source.If using generators , ups than it is good

equipments for their monitoring.Can download all data an make strategy for

energy consumption based on the report and graph.

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Current Graph

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In above graph the variation of load is shown. The devices which are running are taking different power at different time it may be because of any machine fault or the load on the machine is vary.

Current Graph 2

This graph shows the current trends between 12:30 to 15:00. The current is zero at 13:00 ,It represent that all the equipments get off, its may be due to supply abruption or may be all employees are taking lunch if this its good that no equipment is running for free time. For critical machinery you can note that the machine is off between that time and your production is off so you can take actions for which reason the machine goes turn off.

Current AnalysisThe previous graph shows the total current

variations in three phase.The current fluctuation is shown which shows

the load current consumption.In graph on 15:45 current value is high which

shows at that time maximum load is present.You can limit the current value by switch off

some appliances when current exceeds the limit.

Set alarm to limit value of current and get notified by SMS and EMAIL.

Current AnalysisYou will know when your machine goes turn off

and on and calculate its on duration on excel file.

If current consumption is high at any time you will be notified by SMS and EMAIL.

It also shows that your machine has fault may be it is heated and some part take high energy.

You can generate machine energy consumption report and send to maintenance so they will easily know the problem.

Watt Graph

This shows the load pattern. If GML-3 used at any critical machine the sudden high change in wattage shows the external load on machine is high or machine has any fault. Some machines have load limit so this will be shown here.

Watt AnalysisPrevious graph shows the real time and

previous time energy consumption in wattage.Wattage changes continuously which shows that

equipments are not taking the full energy continuously.

You can manage the energy wastage by turn off some equipments or using equipments which takes less power.

Example using laptops besides computer may save electricity, turning off printers and equipments which are not in use.

Power Factor Graph

The above graph shows the good PF, means there is very less power wastage. The idle PF is 1. but the good power factor for real application is around above 0.8 . If device with low power factor used ,it will take higher current and require larger wire. For linear loads such as induction motor PF can be optimized using network of capacitor and inductor. Here PF is zero at starting because at no load the PF will be show zero.

Power Factor AnalysisPrevious graph shows the power factor which

indicate the difference between actual power used and waste power in form of reactive energy.

PF should above 0.8 when load is on for industrial sector otherwise penalty can be put by Kesco.

Graph shows the power factor is around 0.9 it shows very less power is wastage.

You can improve power factor using APFC panel.Can set alarm for low PF ,so you will be notify by

SMS and EMAIL.

Frequency Graph

The graph shows the frequency variation. In India equipments are made for 50 Hz supply. So sources with high frequency are not compatible in India. In the above graph frequency is around 50 Hz which variation is low , so it is good for equipments to get power in form of voltage and current.

Frequency AnalysisThe frequency of voltage should be around 50

Hz.It shows the frequency is around 50 Hz

which is good for equipments and also heavy machines.

Some energy sources may give voltage at low frequency so you will know at what frequency they are producing voltage.

Can set alarm for frequency so you will be notified by SMS and alarm.

Energy Data in CSV/EXCEL

How to use energy dataThe data in excel file can be downloaded on

www.emdata.in .This shows the energy data of GML-3 with

sample rate of 1 minute.You can find maximum, minimum, and also

average values for your parameter.Can generate graph.Calculate the minimum voltage time,

maximum voltage time and also the other parameters filter values.

Two files will be generated online which you can download.

First file contains voltage ,current, wattage, pf and frequency.

Second file contains KWh, KVAh, KVARh.All values are with date and time.Can be used with other softwares to generate

different charts.

Event Management

Event AnalysisShows every event on www.emdata.in .Event will be updated on real time.Events are logged with date and time.Unlimited events can store on server.GML-3 meter itself save 100 latest events in

his memory.Set production rate or machine fault

according to events.

GML-3 working

Advantage of GML-3 over manual systemGML-3 measures data and logs data at fix

time.It can be installed at any place where human

can not go to take readings.No mistake in take reading ,but human can

mistake to take reading, such as taking reading from a thermometer scale.

It can easily generate graph.

Benefits of GML-3 over Traditional EMS systems

The cost of GML-3 is low comparison to other EMS systems.

The GSM technique is used for data logging, so no wire is used to access data.

No need of computer running for 24 hours for data logging.

Installation complexity is reduce, so anybody can install it at any location.

Can access from anywhere in the world.

ApplicationsIn industries for critical machine monitoring system.Energy management system.Cold chain monitoring.Weather station.small and medium scale energy monitoring.Energy saving field.

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