persentation slide design emplementation and performance test of a prepaid energy meter
TRANSCRIPT
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DESIGN, IMPLEMENTATION AND PERFORMANCE TEST OF A PREPAID ENERGY METER.
Submitted by:Md.Chand Siddique (ET-111102)
Md.Saimun Sarif (ET-111018)
Department of Electrical and Electronic EngineeringInternational Islamic University Chittagong
June 2015
Under the supervision ofEngr. Shafait Ahmed.Lecturer EEE,IIUC
Design, implementation and performance test of a prepaid energy meter
Project Outlines
IntroductionMotivationObjectiveHistory of metering systemWhy prepaid energy meter- from customer point of view?Block DiagramProject ToolsCircuit DiagramFull device overviewPractical data for prepaid energy meterLimitationsFuture scopeconclusion
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Design, implementation and performance test of a prepaid energy meter
Introduction
Prepaid energy meter which is based on the concept “Pay first and then use it”.
Prepaid energy meter also reduces the error made by humans while taking readings to a large extent and there is no need to take reading in it.
The prepaid energy meter uses a recharge card which is available in the prepayment electricity vending station.
In our project we are using keypad through which we can done our recharge.
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Design, implementation and performance test of a prepaid energy meter
Motivation
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Eliminate the billing delay.
The prepaid energy meter save the man power.
Save electrical power.
Save our money and time.
Design, implementation and performance test of a prepaid energy meter
Objectives
The main objective of our project is to minimise the cost of our
project which we design.
To overcome the problems or error in meter reading.
To overcome in the problems of traditional billing systems this
project is designed.
To reduce the loss of power and revenue.
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Design, implementation and performance test of a prepaid energy meter
History of metering system
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PAST
ELECTRO-MECHANICALLow AccuracyControl – NILCommunications – Unidirectional Theft Detection – Poor
PRESENT
DIGITAL SOLID STATEHigh Accuracy Control – LIMITEDCommunications – UnidirectionalTheft Detection – Low
Next gener.
PREPAID ENERGY METERVery High AccuracyControl – FULLCommunications – BidirectionalTheft Detection – High
Design, implementation and performance test of a prepaid energy meter
Why Prepaid energy meter – From Customer point of view?
Pay to suit your income status.
Reduce waste – conserve energy
No billing errors
No unacceptable disconnections. etc
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Design, implementation and performance test of a prepaid energy meter
Block Diagram
Microcontroller
Voltage and current
controlling unit
keypadRelay
Buzzer
LCD display
Figure:1 Block Diagram of a prepaid energy meter.
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Main supply
Design, implementation and performance test of a prepaid energy meter
Project ToolsTransformer(220/6V)Relay (12v)Capacitor(1000µf to 220 and 330µf to 100µf)LCD (2×16)Key pad(3×4 matrix)Crystal oscillatorDiodeTransistor (NPN)C828Microcontroller(MCU PIC16F876A)BuzzerVaro boardVariable Resistor(4.7kohm)Plastic wood sheet200W bulb
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Design, implementation and performance test of a prepaid energy meter
Full Device Overview
Load LCD
Relay
Buzzer
Keypad
Load switch
PIC16F876A
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Design, implementation and performance test of a prepaid energy meter
Practical data for prepaid energy meter
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No.of
observ-
ation
Load
(watt)
Amount
recharge
(tk)
Unit
taken
Time
(mint)
Line
voltage
(v)
Line
current
(A)
Power used
(Wh)
1 60 200tk 40 25.11 228 0.22 50.16
2 100 200tk 40 14.54 229 0.37 84.73
3 120 200tk 40 12.25 225 0.45 101.2
4 160 200tk 40 9.17 226 0.60 135.6
5 200 200tk 40 7.20 225 0.74 166.5
Design, implementation and performance test of a prepaid energy meter
Chart of practical data
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1 2 3 4 50
50
100
150
200
250
60
100
120
160
200
50.16
84.73101.2
135.6
166.5
9.84 15.27 18.8 24.433.5
Chart for practical data
LOAD CONSUMED POWER POWER LOSS
Design, implementation and performance test of a prepaid energy meter
Future Scope
A mini printer can be interfaced to get a printed bill or details of billing.
Remote recharging can be implemented through telephone line or wireless network.
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Design, implementation and performance test of a prepaid energy meter
Limitations
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Because of experimental design our device is not suitable for practical use
now.
Lack of emergency balance.
Limitation of load.
Design, implementation and performance test of a prepaid energy meter
ConclusionIn this our report it is intended to present an overview of prepaid energy meter,
which can control the usage of electricity on consumer side to avoid wastage of power.
Prepaid energy meter is a concept to minimize the Electricity theft with a cost efficient manner.
In Bangladesh and other Asian country peoples are using more post-paid energy meter so here we are courage to peoples about the prepaid energy meter.
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