Compact Transmission Line Structure for Congested Corridor Clearance
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Solution Overview
Problem
In congested transmission line corridors, the spatial constraints caused by multiple intersecting lines pose challenges for maintaining proper clearance, which is essential for safety and reliability, and existing solutions are costly and disruptive when new lines need to be added, leading to potential outages and increased costs.
Innovation Solution
A compact transmission line structure system utilizing modular designs with diamond-shaped insulator assemblies and unique crossarm configurations that allow for efficient arrangement of transmission lines in tight spaces while maintaining necessary clearances, enabling the use of T- and inverted L-shaped structures to support multiple lines without requiring extensive rebuilding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional transmission line structures are used in congested corridors, then proper clearance can be maintained, but the spatial footprint increases and visual impact increases
Solution Approach 1:
The patent applies vertical stacking of transmission lines to transition from horizontal spatial arrangement to vertical arrangement. Multiple transmission lines are stacked vertically on single structures, achieving line compaction in the vertical direction while maintaining proper clearance between phases and between adjacent lines. This dimensional change resolves the contradiction by preserving clearance requirements while dramatically reducing the horizontal spatial footprint in congested corridors.
Solution Approach 2:
The patent implements nested configuration where multiple transmission lines are positioned within a compact vertical structure. The phases of each transmission line are arranged in nested configurations (flat or vertical), and multiple transmission lines are stacked vertically within the same corridor space. This nesting approach maintains necessary clearances while minimizing the overall spatial footprint.
2Area of stationary object
If transmission lines are compacted vertically and horizontally, then spatial constraints are reduced, but structure height and width must still meet safety code requirements
Solution Approach 1:
The patent segments the transmission line structure into modular components: individual transmission lines are divided into phase groups (flat or vertical configurations), and multiple transmission lines are stacked as separate modular units on shared structures. This segmentation allows independent optimization of each module while simplifying the overall system configuration and deployment.
Solution Approach 2:
The patent designs universal support structures that can accommodate multiple transmission lines with different configurations. The same tower structure type can support various combinations of stacked transmission lines, and the phase arrangements (flat or vertical) can be adapted based on specific corridor constraints. This multi-functionality reduces the need for custom-designed structures for each scenario.
3Productivity
If new transmission lines are added to existing corridors, then capacity increases, but extensive rebuilding is required causing outages and increased costs
Solution Approach 1:
The patent prepares corridors in advance by installing compact vertical support structures that are designed to accommodate multiple transmission lines. These pre-positioned structures can subsequently support additional transmission lines without requiring extensive rebuilding. The preliminary placement of versatile support infrastructure enables future capacity expansions to be achieved through simpler attachment operations rather than complete structure replacements.
Solution Approach 2:
The patent creates a dynamic, adaptable transmission infrastructure where support structures can accommodate varying numbers and configurations of transmission lines. The modular design allows the system to evolve from supporting fewer lines to supporting more lines as capacity demands increase, without requiring fundamental structural changes. This dynamic adaptability enables incremental capacity expansion with minimal disruption.
Data Source
AI summary
Devices, systems, and methods are provided for compact transmission lines structure. A compact transmission lines structure may comprise a first subsystem of a pole and a crossarm, wherein the crossarm is stacked above the pole, wherein the crossarm comprises a cantilever end situated away from the pole. The compact transmission lines structure may comprise a second subsystem connected to the cantilever end. The second subsystem comprising a first diamond-shaped insulator assembly supporting a first single three-phase transmission line. The compact transmission lines structure may comprise a third subsystem connected to the cantilever end, the third subsystem comprising a second diamond-shaped insulator assembly supporting a second single three-phase transmission line, wherein the second diamond-shaped insulator assembly mirrors the first diamond-shaped insulator assembly. The compact transmission lines structure may comprise at least two shield wires configured to provide lightning protection.