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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 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
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
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.
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
End-Product Description • Simple attachment to present device • Battery operated Transmitter and Receiver with a range of 150 Ft • Handheld Receiver with LED display
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
Risks and Concerns • Limited amount of time for project completion. • Testing to insure accuracy. • Interference • Ease of use
Evaluation of Project Success • Interface with present unit. • Data input to programmable unit • RF Transmission/Reception • Receiver display interface
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.
Financial Budget Total Cost: $260.00
Human Budget Total Hours: 214 Hours
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
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.