Parallel Transfer Switches for Compact 400 Amp Power Distribution
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Solution Overview
Problem
Current backup power supply systems require either two separate 200 amp transfer switches or a large single 400 amp transfer switch, which is impractical due to space constraints and inefficiencies in managing primary and secondary power sources.
Innovation Solution
A transfer switch system with a control system that manages a pair of 200 amp contactors, using splitters to divide primary and secondary power sources, allowing a single or dual controller setup to coordinate the connection of either power source to distribution panels, enabling efficient power transfer without the need for large, single 400 amp components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a single 400 amp transfer switch is used to handle the full power service, then the power distribution capability is sufficient, but the device size becomes too large for available installation space
Solution Approach 1:
The patent divides a single 400 amp transfer switch into two separate 200 amp transfer switches, each handling a portion of the total power load. This segmentation allows the system to maintain full power distribution capability while reducing the physical size of each individual transfer switch unit to fit within available installation space.
2Area of stationary object
If two separate 200 amp transfer switches are used, then the device size is reduced to fit available space, but the system complexity increases with separate controllers
Solution Approach 1:
The patent combines the control functions of two separate transfer switches into a single integrated controller. This merging of control logic allows the system to maintain reduced device size with two 200 amp transfer switches while eliminating the complexity of managing separate controllers, as the single controller coordinates both transfer switches to operate as a unified system.
3Area of stationary object
If two separate 200 amp transfer switches with separate controllers are used, then the space requirement is reduced, but the coordination and synchronization between switches becomes more difficult
Solution Approach 1:
By integrating a single controller to manage both 200 amp transfer switches, the patent eliminates coordination difficulties. The unified controller ensures synchronized operation of both switches, maintaining ease of operation while allowing the system to use smaller, space-efficient transfer switch units.
Data Source
AI summary
A backup power management system connectable to a primary power source and a secondary power source, and a method of operating the same. The system includes an enclosed housing that receives a control system including first and second controllers that are connected to a first transfer switch contactor and a second transfer switch contactor within the housing. Both the primary power source and a secondary power source are broken into two separate output supplies. The two separate output supplies from the primary power source and the secondary power source are each provided to one of the first and second transfer switch contactors. The control system sends signals to the first and second transfer switch contactors to control the movement of the contactors between first and second positions. The power management system can also include a load management controller to control the load on the secondary power source.