Permanent Short-Circuit Device Radial Deformation
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Solution Overview
Problem
Existing high-voltage power transmission systems face challenges in achieving a reliable and fast permanent short-circuit with low resistance, particularly in safely accelerating and controlling the forces induced by high currents during explosive-based methods.
Innovation Solution
A permanent short-circuit device with a detonation zone where the amount of material between the first and second surfaces is lower, allowing explosives to deform the body radially and create a galvanic connection between two conductive bodies, simplifying the short-circuiting process by minimizing additional components and control factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If explosives are used to accelerate a mass axially to close a switch, then the short-circuiting is fast and reliable, but the device complexity and control requirements increase due to needing to manage multiple bodies and axial travel
Solution Approach 1:
The invention extracts and eliminates the projectile mass from the system, using only the first and second bodies. The explosives are applied directly to the first body to deform it radially inward, removing the need for axial acceleration and travel of a separate mass, thereby simplifying the device while maintaining reliability
Solution Approach 2:
Instead of accelerating a mass axially to close a switch (conventional approach), the invention inverts the mechanism by using radial deformation of the first body toward the second body. This inversion eliminates the need for axial travel and complex positioning, reducing device complexity while achieving the same short-circuiting function
2Reliability
If a projectile is accelerated axially to obtain radial contact for short-circuiting, then electric contact is ensured, but safe acceleration and travel of the mass becomes challenging
Solution Approach 1:
The invention replaces the mechanical system of axial projectile acceleration with a direct explosive deformation mechanism. The explosives are applied to the first body to create radial deformation inward toward the second body, eliminating the need for mass acceleration and travel, thereby avoiding the harmful forces and safety issues associated with high-velocity mass movement
3Use of energy by moving object
If material is removed or reduced in the detonation zone, then explosive efficiency increases and deformation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The invention applies local quality by creating a detonation zone with reduced material thickness specifically in the region where explosives are applied. This localized modification allows the explosive wave to efficiently deform the first body radially inward without requiring high precision throughout the entire structure, as only the detonation zone needs the specific geometric characteristics
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
The solution enables fast and reliable short-circuiting with low resistance, reducing complexity and cost by ensuring direct deformation of the body without axial mass travel, allowing for efficient explosive use and potential zero-resistance connections.
Implementation Method 1
The first body has at least one detonation zone in the area where the explosives are applied... the amount of first body material between the first and second surfaces is lower in the detonation zone than in the rest of the first body
Implementation Method 2
allowing explosives to deform the body radially and create a galvanic connection between two conductive bodies
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention concerns a permanent short-circuit device comprising an enclosure with a first and second fixed electrically conducting body (34, 40), each connected to a respective conductor leaving the enclosure, the first and second bodies body (34, 40) each having a first and a second surface (36, 38, 42, 44) on opposite sides of the respective body, where the first surface (36) of the first body (34) faces the first surface (42) of the second body (40) and is separated therefrom by a gap with width d and the second surface (38) of the first body (34) is provided with explosives (46) connected to a detonator (48) for deforming the first body (34) towards the first surface (42) of the second body (40) such that the first surface (36) of the first body (34) crosses the gap and galvanically connects to the first surface (42) of the second body (40).