Transformer T-Blade Switch Tool With Rotating Handle Torque Control
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Solution Overview
Problem
Existing actuating tools for T-blade switches on transformers are not ergonomic, leading to potential soft tissue injuries for utility personnel, and can result in the switch mechanism jamming, making it inoperable.
Innovation Solution
An actuating tool with an elongated pole made from electrical insulator fiberglass material, featuring a handle member that can rotate between parallel and perpendicular positions to the pole, allowing for more effective torque application and reduced strain on the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed length substantially round switch stick is used to operate the T-blade switch, then the switch can be actuated, but the utility personnel experience soft tissue injuries in the wrists and shoulders and overextend their back
Solution Approach 1:
The handle member is made movable relative to the pole, allowing it to rotate between a first position substantially parallel to the pole and a second position substantially perpendicular to the pole. This dynamic adjustment enables utility personnel to optimize the torque application angle during operation, improving ergonomics and reducing strain on the body.
Solution Approach 2:
The handle member can rotate from a parallel position to a perpendicular position relative to the pole, adding a rotational dimension to the tool's configuration. This dimensional change allows personnel to apply force more effectively by positioning the handle perpendicular to the pole, creating a longer effective lever arm and reducing physical strain.
2Ease of operation
If the handle member is made movable to rotate between parallel and perpendicular positions, then torque application is more effective and strain is reduced, but the device complexity increases
Solution Approach 1:
The handle member is made movable relative to the pole, allowing it to rotate between a first position substantially parallel to the pole and a second position substantially perpendicular to the pole. This dynamic adjustment enables utility personnel to optimize the torque application angle during operation, improving ergonomics and reducing strain on the body.
3Ease of operation
If the utility personnel rotate the switching stick well past 90 degrees (approximately 130 degrees) to get the actuator into the next position, then the switch position changes, but the mechanism may jam making the switch inoperable
Solution Approach 1:
The handle member's ability to rotate between parallel and perpendicular positions provides dynamic control over the torque application direction. This allows for more precise control during the switching operation, helping to ensure the actuator reaches the correct position without excessive force that could cause jamming.
Data Source
AI summary
An actuating tool for a switch on a transformer is provided. The switch being rotatable between a plurality of positions. The actuating tool includes an elongated pole having a predetermined length having a first end and an opposing second end. An actuator element is arranged on the first end of the pole, the actuator element being configured to engage the switch. A handle member rotatably coupled to the pole between the first end of the second end, the handle member being movably coupled to rotate between a first position substantially parallel to the pole and a second position substantially perpendicular to the pole.