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Remote Energy meteringRemote Energy metering
N.H.M. PrabhathN.H.M. Prabhath
080368F080368F
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ContentContent
What is it?What is it?
What are its features??What are its features??What are the
benefits & losses??What are the benefits & losses??
The projects carried outThe projects carried out
Its applicationsIts applications
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What is it??????What is it??????
In Simple words
Remote reading of energy metersRemote reading of energy
meters
Not only for households but also for other uses asNot only for
households but also for other uses aswellwell
Ex: power generationEx: power generation
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FeaturesFeaturesThis contains with 3 units..
1. A metering unit2. A sending unit
3. A processing unit
Asmart meter is used as a metering unit and italso does the
sending part
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What is a smart meter??
It measures the electrical energy usagebimonthly
And sends the data to metering company
Those data is then processed
And Sends the bill to the particularhousehold
F
eatures contd..
F
eatures contd..
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Technology transformation..Technology transformation..
Electronic
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More About Smart meters.More About Smart meters.
Brings intelligence to the cycle
The power to the meter is taken directly by thepower lines.
In the metering unit there is a storing unit whichstore the
current & the past records.
(up to 3 months or 6 months etc..) Using a software we can set
it to save thebimonthly readings to file in the computer.
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Contd.Contd.
We can set the meter to measure energy as often
we like. Has a power consumption of ~1W
Can be easily installed and no need for removingthe current
meter .
To send the data automatically to the meteringcompany they
should also have set up the meter.
Yet to be developed in Sri Lanka.
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A Block diagram of a Smart meterA Block diagram of a Smart
meter
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Benefits & lossesBenefits & losses
Benefits
Accurate Fully automatic
Easier process from meter to bill
Efficient
Easy installation Considerably lower cost
More reliable
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Benefits & lossesBenefits & losses contdcontd
Functional benefits
Remote reading
Real time reading
Tampering detection
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Tampering detectionTampering detection
Due to the increasing cost of electricity, energy
theft is becoming a major concern
A large portion of these revenue losses can berecovered by
installing electronic energy meters
because they can detect tampering conditionsand assure proper
billing.
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Tampering detection contd..Tampering detection contd..
An example
feeding other loads directly from the main lines
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Benefits & lossesBenefits & losses contdcontd
Losses
Considerably higher risk of been broken(may not be capable of
using it for a long time)
There may not be replacements for each item ofthe unit so will
have to replace the whole unit
(So may not be cost effective)
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The projects carried out through thisThe projects carried out
through thisconcept..concept.. ENEL (Italy)
- 27 million smart meters were installed- Remote monitoring
& bimonthly reading
Ontario (Canada)- 800,000 meters by end of 2007
Victoria (Australia) , California etc
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Theapplic
ations of Remote energy
Theapplic
ations of Remote energymeteringmetering
This technology can be used in measurement of
power in power stations This technology can be further used to
accessenergy measurements through mobile phonesusing sms
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Questions??Questions??
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