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POWER LOSS DETAILS OF SOME REGIONS OF TAMIL NADU

POWER LOSS DETAILS OF SOME REGIONS OF TAMIL NADU. BY T.CHANDAN G.SUNIL V.PRAVEEN KUMAR. MICROCONTROLLER BASED POWER THEFT IDENTIFICATION SYSTEM. Bogus seals Meter tampering Meter bypassing Changing connection Direct tapping from line

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POWER LOSS DETAILS OF SOME REGIONS OF TAMIL NADU

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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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