Transcript Leakage Current Detection System for Insulated Boom Trucks

Leakage Current Detection System
for Insulated Boom Trucks
May01-12
Team:
Advisors:
Josh Struble (EE)
Eli Forney (EE)
Chris Hulsebus (EE)
Lynn Nguyen (EE)
Glen Hillesland
John Lamont
Robert Weber
Ralph E. Patterson III
Client:
Skarshaug Testing Laboratory, Ames IA
Presentation Outline
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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.
What you don’t want to happen!!
Design Objectives
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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
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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:
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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:
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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
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Limited amount of
time for project
completion.
Testing to insure
accuracy.
Interference
Ease of use
Technical Approach - Transmitter
Technical Approach - Receiver
Evaluation of Project Success
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Interface with present unit.
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Data input to programmable unit
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RF Transmission/Reception
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Receiver display interface
Further Work
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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
Other Parts
13%
Display Parts
13%
Poster
18%
RF Parts
56%
Total Cost: $260.00
Human Budget
Poster
17%
Other
10%
Meetings
21%
Presentation
8%
Documentation
44%
Total Hours: 214 Hours
What We Have Learned
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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.