Dual Compartment Switchgear Module for Arc Isolation
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Solution Overview
Problem
The existing switchgear/board cabinet construction methods are difficult to modify or produce quickly, and they face challenges with arcing between phase conductors, which can cause damage and safety hazards.
Innovation Solution
A dual compartment module is introduced, featuring an equipment compartment and a bus compartment with interphase barriers to isolate connection buses of each phase, making it easier to construct switchgear/board cabinets of varying heights and reducing the risk of arcing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual compartments are assembled separately and then connected, then the cabinet can be constructed with modular components, but it is difficult to modify or produce quickly according to customer specifications
Solution Approach 1:
The cabinet is divided into standardized dual-compartment modules (equipment compartment + bus compartment), each being a complete functional unit that can be independently manufactured and then stacked/connected to form cabinets of various specifications, enabling both quick assembly and customization
Solution Approach 2:
The dual-compartment module design creates a universal building block that can be used to construct different types and sizes of switchgear cabinets by stacking multiple identical modules, allowing one module design to serve multiple cabinet configuration needs
2Ease of manufacture
If compartments are individually assembled and connected, then modular construction is achieved, but the complexity of assembly and modification increases
Solution Approach 1:
The equipment compartment and bus compartment are merged into a single integrated dual-compartment module with pre-established connections and barriers, reducing the number of separate assembly steps required compared to connecting individual compartments separately
3Volume of stationary object
If phase conductors are placed in the same compartment, then space is utilized efficiently, but arcing between phase conductors can occur causing damage and safety hazards
Solution Approach 1:
The harmful effect of potential arcing is extracted from the system by introducing non-conductive barriers that separate phase conductors, removing the danger while preserving the compact compartment design
Solution Approach 2:
Non-conductive barriers are introduced as intermediary elements between phase conductors, preventing direct contact and arcing while allowing the conductors to remain in close proximity for efficient space utilization
Data Source
AI summary
A switchgear/board cabinet is constructed using a dual compartment module (100) that includes an equipment compartment (200) and a bus compartment (300) arranged behind the equipment compartment. The bus compartment includes line connection buses (310) and load connection buses (320) for a plurality of phases, spaced-apart vertical interphase barriers (330), a horizontal support barrier (340) and a rear barrier (350) forming a back wall. Each of the vertical interphase barriers extends from a front to a back of the bus compartment, and isolates the load connection bus and line connection bus of each phase from the load connection bus and line connection bus of the other of the phases. The horizontal support barrier extends from the front to the back of the bus compartment, and supports the line connection buses. Any number of dual compartment modules may be constructed and stacked to provide a customized switchgear/board cabinet.