Segmented Distribution Board Breaker Units for Independent Maintenance
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Solution Overview
Problem
Conventional distribution boards require stopping irrelevant systems when inspecting or changing a specific breaker, leading to inefficiencies in maintenance operations due to the need to handle and stop non-maintained load systems.
Innovation Solution
The distribution board design allows for individual insertion and removal of breaker units along a vertical bus, enabling independent electrical connection and disconnection, thereby facilitating the inspection or replacement of specific breakers without affecting other systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple breakers are mounted in one distribution board unit, then the device complexity is reduced and installation is simplified, but maintenance requires stopping irrelevant systems and increases operation time
Solution Approach 1:
The distribution board is segmented into multiple independent distribution board units, each housing a single breaker. These units can be individually removed from the rack body without affecting other units. This segmentation allows maintenance personnel to access and replace only the specific breaker unit that requires maintenance, eliminating the need to stop other load systems and significantly reducing maintenance operation time.
2Device complexity
If multiple breakers are mounted in one distribution board unit, then the device complexity is reduced, but the ease of operation for maintenance deteriorates
Solution Approach 1:
Each breaker is isolated in its own distribution board unit that can be independently removed from the rack body. This segmentation transforms the maintenance operation from a complex multi-step process involving multiple breakers to a simple single-unit removal and replacement operation, significantly improving ease of operation.
Solution Approach 2:
The breaker units are designed to be extractable from the rack body without affecting the remaining system. The connection portions allow each unit to be electrically connected to the bus bar only when inserted into the rack body, enabling easy extraction for maintenance while maintaining system operation for other units.
3Device complexity
If a conventional distribution board unit is used, then the device complexity is low, but the productivity during maintenance deteriorates due to system downtime
Solution Approach 1:
The distribution board is divided into multiple independent units that can be maintained separately. This segmentation enables parallel operation where most of the system remains productive while only the specific unit requiring maintenance is removed, thereby maintaining high overall productivity during maintenance activities.
Solution Approach 2:
The ability to extract individual breaker units from the rack body without affecting other units allows maintenance to be performed on a single breaker while the rest of the system continues to operate, eliminating unnecessary productivity loss and maintaining high maintenance efficiency.
Data Source
AI summary
Provided is a distribution board which includes a plurality of breaker units which are disposed so as to be inserted and removed, through a front side of a housing, in a front-rear direction, relative to a vertical bus disposed on an inner depth side of the housing so as to extend in an up-down direction, the plurality of breaker units being electrically connected to and disconnected from the vertical bus by insertion and removal operation. In the distribution board, the breaker units include a first breaker unit and a second breaker unit that are aligned in line in a horizontal direction and that can be individually inserted and removed, and the vertical bus includes a first vertical bus corresponding to the first breaker unit and a second vertical bus corresponding to the second breaker unit.