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WIRELESS POWER THEFT MONITERING SYSTEM AND INDICATION AT LOCAL SUBSTATION:

WIRELESS POWER THEFT MONITERING SYSTEM AND INDICATION AT LOCAL SUBSTATION Under the esteemed guidance of Asso Prof. Mr.R.S.Ravi Sankar BATCH NO 07EE07 M.V.G.VARA PRASAD (07L31A0242) M.CHANDINI (07L31A0215) J.RAMA KRISHNA REDDY (07L31A0233) N.SHANMUKHA PAVAN TEJ (07L31A0251) VIGNAN’S INSTITUTE OF INFORMATION TECHNOLOGY DUVVADA

CONTENTS :

CONTENTS INTRODUCTION MODES OF THEFT BLOCK DIAGRAM TRANSMITTING SECTION RECEIVING SECTION DISPLAY SECTION MONITORING MEASURES MERITS CONCLUDING LINES

Slide 3:

Completed TRANSMITTING SECTION RECEIVING SECTION DISPLAY SECTION At to be Completed MONITORING MEASURES Programming for the Micro controller.

MODES OF THEFT::

MODES OF THEFT: It has been seen that there are 4 common methods of power theft as given below :- Bogus seals and tampering of seals. Meter tampering, meter tilting, meter interface and meter bypassing. Changing connection. Direct tapping from line. Due to introduction of modern electronic metering equipments, power thieves are utilizing more technological methods.

Block Diagram:

Block Diagram

Transmitter Circuit:

Transmitter Circuit

Transmitter Circuit consist of:

Transmitter Circuit consist of Power Circuit 89C52 Micro controller ULN Relay Radio Frequency Transmitter 555 Timer

Receiver Circuit:

Receiver Circuit

Receiver Circuit consist of:

Receiver Circuit consist of Power Circuit 89C52 Micro Controller MAX 232 Interface LCD DB9 Female Connector RF Receiver

Operation:

Operation In this section the micro controller gets the input from the power circuit. In the Micro controller a preset load of 60 watts is initialized A hole is made on the top of the energy meter and the light is made to pass through it. LDR is used to sense the rotation of the wheel of energy meter with the help of the light falling on it. The energy meter constant values are taken and are used to calculate the rotations of the wheel for one watt. The power theft detection is checked for the duration of every 10 hours. If the energy meter takes 5 rotations for one watt when there is no power theft which is calculated from the energy meter constant. The Micro controller checks whether there is power theft or not for every 10 hours duration of time by disconnecting the actual load from the energy meter.

Slide 13:

Connecting the preset load to the energy meter with the help of the relay. If the power theft doesn’t occur the Micro controller will not send any information to the sub station. If the power theft occurs the information is sent to the sub station with the help of the transmitter. RF receiver receive the information from the RF transmitter. 89C52 Micro controller is used for displaying the location of the theft with the help of LCD. MAX 232 Interface is used to convert the digital information received from the RF Receiver and convert it into analog information which is displayed on the LCD.

Micro Controller 89C52 Pin Diagram:

Micro Controller 89C52 Pin Diagram

Features:

Features • 8K Bytes of In-system Programmable (ISP) Flash Memory Endurance: 10,000 Write/Erase Cycles • 4.0V to 5.5V Operating Range • Fully Static Operation: 0 Hz to 33 MHz • Three-level Program Memory Lock • 256 x 8-bit Internal RAM • 32 Programmable I/O Lines • Three 16-bit Timer/Counters • Eight Interrupt Sources

Slide 16:

• Full Duplex UART Serial Channel • Low-power Idle and Power-down Modes • Interrupt Recovery from Power-down Mode • Watchdog Timer • Dual Data Pointer • Power-off Flag • Fast Programming Time • Flexible ISP Programming (Byte and Page Mode) • Green (Pb/Halide-free) Packaging Option

ADVANTAGES:

ADVANTAGES Power theft is one of the problem for power loss, we can minimize these losses. It is easy to identify the place where power theft is going on. Economical. Less maintence. We can implement this method in industrial and domestic applications.

DISADVANTAGES:

DISADVANTAGES Interruption of the power supply at the load during the operation. It needs an additional power circuit for the operation of the Micro-Controller at every individual house.

FUTURE SCOPE:

FUTURE SCOPE In future all the energy meters are digital in type where it is free from magnetic parts, so it is easy to implement this method. Instead of implementing this method in individual houses we can implement it for a group of houses or for one street.

Slide 20:

THANK YOU