High Voltage Switch Segmented Housing Design

Solution Overview

Problem

High-voltage circuit breakers require significant space and insulating gas due to their kettle-shaped housing and multiple poles, which is inefficient and costly.

Innovation Solution

The circuit breaker housing is designed with multiple chambers, each housing a pole, with open front ends covered by dome-like covers, reducing the need for insulating gas by creating a gas connection only at the front ends.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a kettle-shaped housing with multiple poles arranged in one plane or at the corners of a triangle is used, then the circuit breaker can accommodate all poles in a single enclosure, but a lot of space is required and a large amount of insulating gas is needed

Engineering Contradiction:

Improvehousing structureVSAvoidspace requirement

Core Design Contradiction:

Device complexityVSVolume of stationary object

Solution Approach 1:

The housing is divided into multiple separate chambers, each accommodating an individual circuit breaker pole. These chambers are connected only at the front ends, creating a segmented structure that reduces the total volume of insulating gas required while maintaining the ability to house multiple poles in a unified enclosure.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If a kettle-shaped housing with multiple poles arranged in one plane or at the corners of a triangle is used, then the circuit breaker can accommodate all poles in a single enclosure, but a large amount of insulating gas is needed

Engineering Contradiction:

Improvehousing structureVSAvoidinsulating gas amount

Core Design Contradiction:

Device complexityVSQuantity of substance

Solution Approach 1:

The housing is divided into multiple separate chambers, each accommodating an individual circuit breaker pole. These chambers are connected only at the front ends, creating a segmented structure that reduces the total volume of insulating gas required while maintaining the ability to house multiple poles in a unified enclosure.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If circuit breaker poles are arranged in a tank taking up a lot of space, then all poles can be accommodated in one encapsulation, but the amount of insulating gas introduced into the metal enclosure becomes very high

Engineering Contradiction:

Improvepole accommodation capabilityVSAvoidenclosure volume

Core Design Contradiction:

Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The housing is divided into multiple separate chambers, each accommodating an individual circuit breaker pole. These chambers are connected only at the front ends, creating a segmented structure that reduces the total volume of insulating gas required while maintaining the ability to house multiple poles in a unified enclosure.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentEP2273525B1High voltage switch

Publication Date: 2016.06.15 ABB (SCHWEIZ) AG

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AI summary

The circuit-breaker (10) has two power interrupter terminals (11, 12) that are accommodated in a common circuit-breaker housing (21), and two connection outlets. The circuit-breaker housing has chambers corresponding to the number of interrupter terminals, where the chambers are opened at front ends. The interrupter terminals are arranged in the chambers. The opened front ends of the chambers are closed by dome-like covers (22, 23) to allow a gas connection between the individual chambers by connecting areas produced by the covers. An independent claim is also included for a switchboard section comprising a bus bar housing.