Robotic Bonding and Insulation for Live Power Line Maintenance
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Solution Overview
Problem
Existing systems for maintaining power lines require disconnecting or turning off energized power lines for maintenance, leading to expensive downtime and safety risks for operators due to the inability to electrically bond with energized lines.
Innovation Solution
A remotely operated robotic assembly for aerial devices that establishes an electrical connection with energized power lines using robotic arms and electrical bonding cables, allowing for safe operation and communication while maintaining electrical insulation from ground potential.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power lines are disconnected or turned off for maintenance, then operator safety is improved, but productivity deteriorates due to expensive downtime
Solution Approach 1:
The system converts the harmful high-voltage electrical energy into a beneficial bonding reference potential. By electrically bonding the aerial device to the energized power line, the previously dangerous voltage difference is eliminated, allowing operators to work safely on live lines without disconnection, thus maintaining productivity while ensuring safety
2Productivity
If operators work manually on energized power lines, then productivity is improved by avoiding downtime, but safety deteriorates due to electrical shock risks
Solution Approach 1:
The aerial device is electrically bonded to the energized power line to establish equipotential conditions. This eliminates voltage differences between the operator, equipment, and power line, preventing electrical shock while allowing rapid maintenance operations on live lines
3Reliability
If extensive pre-operation inspections are performed to ensure electrical insulation, then safety is improved, but time consumption increases
Solution Approach 1:
Instead of insulating the aerial device from energized lines (traditional approach), the system inverts the approach by bonding the device to the energized line. This eliminates the need for extensive insulation inspections and time-consuming safety procedures, allowing immediate work on live lines
4Reliability
If existing remote systems are used, then operator safety is improved by remote operation, but functionality deteriorates due to inability to electrically bond with energized lines
Solution Approach 1:
The remotely operated aerial device combines multiple functions: it can operate remotely for safety, electrically bond to energized power lines for versatility, and maintain communication across dielectric gaps. This multi-functional capability allows the system to adapt to various maintenance scenarios including work on live lines
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables safe and efficient maintenance of energized power lines by allowing operators to work without disconnecting the lines, reducing downtime and preventing electrical shocks, while ensuring continuous communication and monitoring of electrical bonding conditions.
Implementation Method 1
establishing, via one or more robotic arms of the aerial device, an electrical connection between the energized power line and a portion of the aerial device with an electrical bonding cable to maintain the portion of the aerial device at an electrical potential of the energized power line
Implementation Method 2
transmitting a communication signal across a dielectric gap from the portion of the aerial device to the operator, the communication signal including sensory information associated with the one or more robotic arms
Data Source
AI summary
Systems and methods for establishing and maintaining an electrical bonding connection between remotely operated equipment and an energized power line using one or more robotic arms disposed on the remotely operated equipment. Sensory information is communicated to an operator at a remote location across a dielectric gap to maintain electrical isolation of the remotely operated equipment.