High-Voltage Transmission Line and SF6 Gas-Insulated ... · RADIOGRAPHIC INSPECTION IN GIS...
Transcript of High-Voltage Transmission Line and SF6 Gas-Insulated ... · RADIOGRAPHIC INSPECTION IN GIS...
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BB&E ENGENHEIROS & CONSULTORES ASSOCIADOSSENDCONTROL INSPEÇÕES INDUSTRIAIS
High-Voltage Transmission Line and SF6 Gas-Insulated Substations Inspection Using Computed Radiography
11th European Conference on Non-Destructive Testing
October 6–10, 2014, Prague – Czech Republic
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AUTHOR
Lins, Edmundo Acioli
Biography:
Mechanical Engineer, 30 year working experience on NDT, especially in the area of computed radiography (CR and DR), and in the development of projects and applications of robotic and radiography for inspection of electric power components, mainly high voltage transmission lines in operation, and gas and oil installations. Has over 10 articles published about the subject.
Affiliation:
BB&E ENGENHARIA E CONSULTORIASENDCONTROL INSPEÇÕES INDUSTRIAIS
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OBJECTIVE
Collaborate in ensuring the continuity of transmitting powerbetween local generation and consumption by evaluating the
integrity of equipment and facilities involved in the process
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CURRENT STATE OF THE ART
SUBSTATION
• Visual inspection
• thermography
TRANSMISSION LINES (OHL)
• Visual inspection
• thermography
• Corona effect
• Deflection magnetic field
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PROPOSALS IN DEVELOPMENT FOR INSPECTION OF TRANSMISSION LINES (OHL)
ROBOTIC SYSTEMS
Drones (mono or multi-rotor)
Incorporation into drones:
• Visual inspection
• Thermography
Advantages:
• Easy access and gain in productivity
• Allows inspection of large tracts
• Allows the approximation and detailed inspection of certain
points
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LIMITATIONS
Drones:
• Rules for use of airspace in each country:
• In some countries use permitted only in uninhabited areas
• Brazil: limited use within sight of the operator
• Low flying range
• Low capacity (payload)
Visual inspection
Thermography
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OUR PROPOSAL - COMPUTED RADIOGRAPHY WITH REMOTE ACCESS
OBJECTIVE: To provide a new tool that provides conclusive information that can be added to the information provided by
current techniques.
ON THE GROUND:
Inspections of substation equipment (lightning arresters, circuit breakers, gis)
AIR:
Inspections OHL:
• Positioning in hard to reach places
• Obtaining images in real time (15,0s to 2.0 min after
positioning)
• Detailed analysis by image processing software
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OUR CURRENT STATE OF DEVELOPMENT
Inspection of substations
Inspection of high voltage lines (energized or not)
Note: energized lines (non-electronic system) - Interference of the magnetic field
Positioning infrastructure from the ground
Development of a robotic system for incorporation
Development of transmission of satellite imagery
Development of dynamic radiography system (continued)
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RADIOGRAPHIC INSPECTION IN LIVE LINE 230kV
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RADIOGRAPHIC INSPECTION IN LIVE LINE 230kV
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RADIOGRAPHIC INSPECTION IN LIVE LINE 230kV
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RADIOGRAPHIC INSPECTION IN GIS (Gas-Insulated Substation)
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RADIOGRAPHIC INSPECTION IN GIS (Gas-Insulated Substation)
OBJECTIVE: Assess the integrity of the conductor contacts.
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RADIOGRAPHIC INSPECTION IN GIS (Gas-Insulated Substation)
Fusion plating equipment for discharges caused by problems in contacts
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RADIOGRAPHIC INSPECTION IN GIS (Gas-Insulated Substation)
Fusion plating equipment for discharges caused by problems in contacts
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RADIOGRAPHIC INSPECTION IN GIS (Gas-Insulated Substation)
Positioning of the radiographic inspection equipment
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RADIOGRAPHIC INSPECTION IN GIS (Gas-Insulated Substation)
Radiographic Image
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RADIOGRAPHIC INSPECTION IN GIS (Gas-Insulated Substation)
Radiographic Image - Fragments of the conductor inside
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RADIOGRAPHIC INSPECTION IN OHL (Non-energized)
Positioning of equipment
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RADIOGRAPHIC INSPECTION IN OHL (Non-energized)
Radiographic Image
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THERMOGRAPHY X RADIOGRAPHY
Radiograph showing increased density of the material in the heated point detected by thermographic
Higher density of the material = Increased Heat Absorption
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CONCLUSION
New developments around the world seeking to offer new possibilities inspection that may confer greater safety in the
operation of power transmission systems are extremely
important.
Within this effort we believe that computed radiography by remote control, thanks to the quality and possibility of analysis of
information may come to occupy an important role in providing information that added those provided by other techniques, can
allow a valuable asset valuation.
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CONCLUSION
Thank you for your attention!!!
Contacts:
Edmundo Acioli: [email protected]
Mardonio Carvalho: [email protected]
www.sendcontrol.com.br