Switchgear Door Controller for Modular Wiring Configuration

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Solution Overview

Problem

Conventional control and switchgear cabinets for medium-voltage or high-voltage switchgear assemblies face high complexity in design, assembly, and wiring, with a risk of wiring errors and inflexible operation, requiring individual component installation and replacement of hardware for changes.

Innovation Solution

A unified controller is installed in a switchpanel door cutout, combining functionally-related wiring and providing interfaces on the control panel, allowing for compact configuration and modular programming, reducing internal wiring and enabling flexible configuration through dip switches and programmable touchscreen interfaces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If individual components are installed and wired up individually in the switchpanel door, then the control system can be customized for specific functions, but the design, assembly, wiring and documentation complexity increases significantly

Engineering Contradiction:
Improvefunctional customizationVSAvoiddesign and assembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple individual switching devices, feedback indications, alarm state signaling devices, push-button switches, and locking switches into a single integrated controller unit. This merging eliminates the need for separate installation and wiring of each component, significantly reducing design and assembly complexity while maintaining full functional customization capabilities through the integrated controller's programming interface.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated controller is designed to perform multiple functions that previously required separate components. It incorporates switching devices, feedback indications, alarm signaling, push-button switches, and locking switches within a single universal unit, allowing one device to replace numerous individual components while maintaining adaptability through programmable configurations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If individual components are wired up individually, then specific wiring configurations can be achieved, but wiring errors may occur due to non-uniform wiring

Engineering Contradiction:
Improvewiring configuration flexibilityVSAvoidwiring error risk
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

By merging all wiring connections into the single integrated controller, the patent eliminates non-uniform wiring across multiple components. The controller provides standardized, uniform connection points that ensure consistent and reliable wiring, eliminating the risk of wiring errors associated with manual individual component installation while maintaining configuration flexibility through the controller's programmable interfaces.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If hardware replacement is used for configuration changes, then operational changes can be implemented, but the process is inflexible and time-consuming

Engineering Contradiction:
Improveconfiguration change capabilityVSAvoidconfiguration change time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The integrated controller incorporates programmable elements and dip switches that allow dynamic reconfiguration of functions without physical hardware replacement. The system transitions from static hardware-based configuration to dynamic software-based configuration, enabling rapid operational changes through programming while maintaining ease of operation through user-friendly interfaces.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent enables configuration changes by altering programmable parameters within the controller rather than replacing physical hardware. Through dip switches and programming interfaces, users can change operational parameters, switching functions, and control logic without any physical intervention, dramatically reducing configuration change time while maintaining full operational flexibility.

Inventive Principle:
Principle #35Parameter changes

4Adaptability or versatility

If a wide range of variants are implemented through individual solutions, then functional diversity is achieved, but the complexity level increases

Engineering Contradiction:
Improvefunctional variant rangeVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The integrated controller serves as a universal platform that can implement a wide range of functional variants through programmable configurations rather than requiring different hardware for each variant. This multi-functionality approach maintains functional diversity while reducing system complexity by consolidating all variant implementations into a single reconfigurable device.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system achieves functional diversity through dynamic reconfiguration capabilities rather than static hardware variants. The controller can be programmed to perform different functions and configurations as needed, allowing a single device to replace numerous specialized devices while maintaining the full range of functional variants through software-based adaptability.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20090206714A1Control and switchgear cabinet
Publication Date: 2009.08.20 ABB (SCHWEIZ) AG
  • US20090206714A1 patent drawing
  • US20090206714A1 patent drawing

AI summary

The disclosure relates to a control and switchgear for a medium or high-voltage substation. In order to improve a generic control and switchgear by means of a given number of prefabricated wiring elements, the function-related wiring is combined in a uniform control device which is incorporated into a segment of the switchgear door and is provided with the operator panel on the outside and a series of interfaces on the inside.