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Leakage Current Detection System for Insulated Boom Trucks

Leakage Current Detection System for Insulated Boom Trucks. Team: Josh Struble (EE) Eli Forney (EE) Chris Hulsebus (EE) Lynn Nguyen (EE). May01-12. Advisors: Glen Hillesland John Lamont Robert Weber Ralph E. Patterson III. Client: Skarshaug Testing Laboratory, Ames IA.

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Leakage Current Detection System for Insulated Boom Trucks

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  1. Leakage Current Detection System for Insulated Boom Trucks Team: Josh Struble (EE) Eli Forney (EE) Chris Hulsebus (EE) Lynn Nguyen (EE) May01-12 Advisors: Glen Hillesland John Lamont Robert Weber Ralph E. Patterson III Client: Skarshaug Testing Laboratory, Ames IA

  2. Presentation Outline • Problem Statement • Design Objectives • End-Product Description • Assumptions and Limitations • Project Risks and Concerns • Technical Approach • Evaluation of Project Success • Recommendations for Further Work • Human and Financial Budgets • Lessons Learned • Closing Summary • Questions

  3. Problem Statement To design a system for testing the insulation integrity of boom trucks to assure workmen they are insulated from ground when working from the bucket.

  4. What you don’t want to happen!!

  5. Design Objectives • To View Current Remotely • Use Existing Current Sensing System and Techniques • Process Current Using State of the Art Components • Produce Read Out on Hand Held LED • Eliminate Pull Cord • Low Battery Detection

  6. End-Product Description • Simple attachment to present device • Battery operated Transmitter and Receiver with a range of 150 Ft • Handheld Receiver with LED display

  7. Assumptions and Limitations Assumptions: • The leakage current will not exceed 2000 micro amps • The boom truck will only be in contact with one line at a time • The kV value and allowable current for the line is known • The appropriate safety procedures are followed Limitations: • The current will range from 0 to 2000 micro amps • The receiver will be within 150 ft of the boom truck • Will only work in fair weather conditions • The duty cycle is limited to the battery life

  8. Risks and Concerns • Limited amount of time for project completion. • Testing to insure accuracy. • Interference • Ease of use

  9. Technical Approach - Transmitter

  10. Technical Approach - Receiver

  11. Evaluation of Project Success • Interface with present unit. • Data input to programmable unit • RF Transmission/Reception • Receiver display interface

  12. Further Work • Adding a speaker or light system • Resizing the probe assembly to make it smaller. • Design a stationary mounting point for the receiver on the truck. • Find lower cost devices for mass production.

  13. Financial Budget Total Cost: $260.00

  14. Human Budget Total Hours: 214 Hours

  15. What We Have Learned • Meet with team members and advisors regularly • Review parts to be ordered carefully • Keep group members involved • Basic Stamp Technology • RF Communications • Testing procedures for Boom Trucks

  16. Summary and Questions??? Our wireless detection system will make it easier and safer for linemen to determine the insulation integrity of a boom truck to insure their safety.

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