Rotatable Conductor Latch for Tool-Aligned Disconnect Installation
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Solution Overview
Problem
Conventional in-line disconnect switches require utility lineman intervention for conductor connection and alignment with the motion of installing the disconnect switch, necessitating a reduction in components and improved alignment using an extendable reach tool.
Innovation Solution
An electrical disconnect assembly with rotatable conductor clamps and a biasing member that allows for self-alignment and secure connection of electrical conductors using an extendable reach tool, reducing the need for manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional conductor connection methods are used, then the disconnect switch can be installed, but manual intervention by utility linemen is required which reduces productivity
Solution Approach 1:
The conductor clamp is designed to automatically engage and secure the conductor through its own mechanical action when the disconnect switch is installed, eliminating the need for manual intervention by utility linemen. The clamp's rotation and engagement mechanisms self-adjust to secure the conductor without human assistance.
Solution Approach 2:
The conductor clamp transitions from a static component to a dynamic one that can rotate and move between different positions (open, engaged, locked). This dynamic capability allows the clamp to automatically align and secure the conductor during installation, improving both productivity and ease of operation.
2Device complexity
If conventional conductor connection methods are used, then the disconnect switch can be installed, but alignment with extendable reach tool motion is difficult requiring additional components
Solution Approach 1:
The conductor clamp serves multiple functions: it guides the conductor during installation, secures the conductor through engagement, and locks into position automatically. This multi-functionality eliminates the need for separate alignment components or additional manual steps, reducing device complexity while improving ease of operation.
Solution Approach 2:
The conductor clamp is pre-configured with engagement surfaces and geometric features that automatically align with the conductor and the disconnect switch body during installation. This preliminary configuration ensures proper alignment occurs naturally as the switch is installed with an extendable reach tool, without requiring additional alignment components.
3Reliability
If the conductor clamp is always engaged, then secure connection is maintained, but the disconnect switch cannot be installed or maintained
Solution Approach 1:
The conductor clamp is designed as a movable component that can rotate between an engaged position (securing the conductor) and a disengaged position (allowing installation and maintenance). This dynamic design maintains reliable conductor connection during normal operation while enabling easy installation and maintenance when needed.
Solution Approach 2:
Instead of having a fixed clamp that requires manual release, the design inverts the approach by having an automatically engaging clamp that can be easily opened through its rotation mechanism. The clamp's natural tendency to engage provides security, while its rotational capability provides easy access for installation and maintenance.
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
Facilitates secure and efficient connection of electrical conductors without manual intervention, enhancing the usability and efficiency of in-line disconnect switches in power distribution systems.
Implementation Method 1
a conductor clamp that is rotatably movable between a clamping position and an open position
Implementation Method 2
a first conductor engaging surface of the first clamp arm is positioned to engage a conductor within the first conductor channel
Data Source
AI summary
An in-line power disconnect assembly for electrical power distribution systems is provided. The in-line power disconnect assembly includes a first end section, a second end section, at least one insulator positioned between the first end section and the second end section, and a switch assembly positioned between the first end section and the second end section. Each of the first and second end sections include a conductor clamp that can be rotated or twisted relative to a longitudinal axis of the first or second end section between a clamping position and an open position.