Electronic Test Switch Assembly for Transformer Status Detection
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Solution Overview
Problem
Current test switch assemblies lack the capability to safely determine the status of switches and current/voltage transformers during maintenance and troubleshooting, often requiring specialized equipment and posing safety risks due to the need for short circuiting, which can damage equipment and pose safety hazards.
Innovation Solution
An electronic test switch assembly with individual switches and a circuit board assembly that processes and monitors current and voltage signals, providing intelligent electronics for sensing, detecting, and storing information, which can be sent remotely or used to control circuit breakers, and featuring customizable circuitry for various applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional test switch assemblies are used with transformers, then the short circuit or bypass feature is provided to protect equipment, but the complexity of operation increases and safety risks arise due to the need for manual short circuiting
Solution Approach 1:
The patent replaces the mechanical switch system with an electronic circuit system. The electronic circuit board with processing circuitry automatically detects transformer status and controls switching operations, eliminating the need for manual mechanical short circuiting while maintaining equipment protection.
Solution Approach 2:
The electronic circuit board performs self-diagnosis and automatic protection functions. The processing circuitry monitors transformer conditions and automatically implements protection measures without requiring operator intervention, making the system self-protecting and easier to operate.
2Productivity
If technicians access the front panel for maintenance, then maintenance can be performed without taking devices out of service, but safety risks increase due to inability to determine energized status
Solution Approach 1:
The electronic circuit board provides real-time feedback about the status of switches and transformers through the user interface. This feedback mechanism allows technicians to determine energized status before performing maintenance, enabling safe front-panel access without taking devices out of service.
Solution Approach 2:
The electronic circuit board acts as an intermediary between the high-voltage transformer circuitry and the user interface. It provides isolation and information about energized status, allowing safe interaction with the system during maintenance operations.
3Measurement precision
If specialized test equipment is used during maintenance, then accurate status determination is achieved, but device complexity and cost increase
Solution Approach 1:
The patent merges the test equipment functionality directly into the transformer assembly by integrating the electronic circuit board with processing circuitry, user interface, and status detection capabilities into the existing device. This eliminates the need for separate specialized test equipment while maintaining measurement precision.
Solution Approach 2:
The electronic circuit board serves multiple functions: it monitors transformer status, controls switching operations, provides user interface interactions, and implements protection measures. This multi-functionality replaces what would otherwise require multiple separate specialized devices.
Data Source
AI summary
A test switch assembly electrically coupled with an electronic module. The electronic module is designed with intelligent sophisticated circuitry that facilitates the transmission and/or the detection of currents and/or voltages between a protective relay and current or voltage transformers. In one embodiment, the electronic test switch senses, detects, monitors, analyzes and/or stores electrical signals and outputs this information to standalone displays, computers. RTU, or similar devices, through wired or wireless connections. The electronic module also allows the test switch to accept electrical connectors such as RJ45, USB, RCA, and/or BNC, among others.