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Power Loss Details of Tamil Nadu & Microcontroller-Based Power Theft Identification System

Explore the modes of electricity theft including meter tampering and malicious tool usage in Tamil Nadu, countered by a microcontroller-powered theft identification system. Learn about the working principles, block diagram, and advantages of this innovative system.

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Power Loss Details of Tamil Nadu & Microcontroller-Based Power Theft Identification System

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  1. POWER LOSS DETAILS OF SOME REGIONS OF TAMIL NADU

  2. BY T.CHANDAN G.SUNIL V.PRAVEEN KUMAR MICROCONTROLLER BASED POWER THEFT IDENTIFICATION SYSTEM

  3. Bogus seals • Meter tampering • Meter bypassing • Changing connection • Direct tapping from line • Check meter, remote meter readers , tamper alarms. Modes of theft and detecting tools

  4. Revolution-pulses. • Pulses-modulated , multiplexed. • Individually tapped at receiver. • Processing by microcontroller. introduction

  5. Block Diagram ` . . DIFFERENCE OCCURS ALARM . . . .

  6. The sensing unit • Phase locked loop • Cmos analog switch • Buffer • Intermediate frequency transformer Transmitting section

  7. TRANSMITTING SECTION - - - -

  8. Intermediate frequency transformer(100-300) khz • Clipper • phase locked loop Receiving section

  9. RECEIVING SECTION - -

  10. Disc rotation-energy consumed. • Receiver-carrier. • Pulse-counter. • Counts six pulses and gives an output for unit consumed. • Counter-decimal counter-display unit. Counter cum display section

  11. COUNTER - DISPLAY SECTION

  12. Final and most important one. • Manipulation and processing work-microcontroller. • Identification and indication- alarm. NEED FOR MICRO CONTROLLER • Simple system-microprocessor is undesirable. • interfacing. Processing section

  13. AT89c51 is a 40 pin dip IC. • EPROM(electrically programmed read only memory) of 4 kilobytes. • Ram of 128 bytes. • Input output ports(p0,p1,p2,p3). . . Overview of at89c51 . .

  14. Set value-p1 by means of DIP switches. • Pulses from energy meter are given to respective pins of port 3. • Alarm to 39th pin of IC. • No external memory. • Program- continuous counting of units and simultaneous comparisions • error predicted-alarm. Operation of microcontroller

  15. Digital meter–simplifies our work. • Highly accurate , low loss and economical one. • Helps vigilance squad to control theft easily and quickly. • Extent of theft can be identified. • Compact size, reliability, lightweight for quick operation and high accuracy makes the system more effective. merits

  16. Distance coverage-repeaters. • atmospheric noises. • A maintenance staff of highly skilled and high trained personnel are needed. Demerits

  17. Our idea is a boon to electricity board. • The crime of stealing power may be brought to end and there by a new bloom may be expected in the economy of our motherland.

  18. QUERIES

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