(aliv) multiple transformers oil temperature monitoring with automatic circuit breaker operation...
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Multiple Transformers Oil Temperature Monitoring with Automatic Circuit Breaker Operation with SMS Based AlertsTRANSCRIPT
WelcomeByMd. Abu Jauad Kahn AlivID# 11105137 Student of Bsc.EEE
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Multiple Transformers Oil Temperature Monitoring with
Automatic Circuit Breaker Operation with SMS Based Alerts
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Objective1. Continuous oil temperature reading of multiple
Transformers 2. GSM, SMS based alert 3. LCD display based visual alerts and continuous
monitoring 4. Reliable for industrial needs
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Requirements of Oil Temperature Monitoring
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Hardware Requirement Transformer Temperature Sensor (IC-LM35) Microcontroller (IC-AT89C51) Regulator GSM modem LCD (with driver) & LED
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4 Parts6
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Oil Effects on Transformer
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Why Oil ?
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Function of Transformer OilTo provide dielectric strength of the transformer insulation system
To provide efficient cooling
To protect the transformer core and coil assembly from chemical attack
To prevent the build up of sludge in the transformer
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Importance of Sensor
Measure temperature more accurately than using a thermostatGenerate a higher output voltage than thermocoupleRated for full -55˚ to +150˚C rangeOperates from 4 to 30 voltsLow cost 12
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Regulator
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Importance of Regulator Provided with maximum threshold temperature after which X-former need to turn off Controller also displays the oil temperature over an LCD display Gives Permission to circuit breaker to disconnect the X-former from power line
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Display System
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Getting Information
GSM modem is used for sending the information of critical situation of X-former
Alerts the electricity department through SMS
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Monitoring
Monitored as soon as SMS reached through GPS
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Microcontroller
ADC LCD
ADC
RS 232 INTERFACING
TEMPERATURE SENSOR 1
RELAY DRIVER
RESET
LCD DRIVER
TEMPERATURE SENSOR 2
RELAY
LED INDICATOR
GSM MODEM
Block Diagram
REGULATED POWER SUPPLY
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Summery Initialization of ADC module of Microcontroller
Temperature sensor characteristics
Serial communication protocols
LCD interfacing to Microcontroller21
Question Session
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Thank You
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References www.mycollegeproject.com www.wikipedia.com www.gredesence.com www.energy-seimence.com A Text Book of Electrical Technology
– B.L Theraja
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