Gas Circuit Breaker Nozzle Material Evaluation Under Dynamic Arcing
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Solution Overview
Problem
Existing methods for evaluating nozzle materials in environmentally-friendly gas circuit breakers are costly, time-consuming, and fail to accurately simulate real-world conditions, particularly for mixed gases like C4F7N, leading to inconsistent performance assessments.
Innovation Solution
A method using a combination-weighted multi-parameter dynamic decision factor to evaluate nozzle materials based on current, voltage, air pressure, and temperature data during arcing tests, classifying performance into four levels: unqualified, qualified, good, and excellent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional expensive testing devices and long experiment periods are used to evaluate nozzle material, then measurement precision and reliability are improved, but test cost and loss of time increase significantly
Solution Approach 1:
The patent transforms the evaluation from traditional static testing to dynamic multi-parameter monitoring. By measuring current, voltage, air pressure, and temperature simultaneously during arcing tests, the system captures comprehensive material performance data without extending test duration. The dynamic decision factor integrates these parameters to provide accurate evaluation rapidly.
Solution Approach 2:
The patent replaces expensive physical testing devices with an electrical measurement system. By using current, voltage, and sensor data to evaluate nozzle material performance, the system eliminates the need for costly traditional testing equipment while maintaining or improving measurement precision.
2Reliability
If traditional testing methods are used to evaluate nozzle material under high temperature and high pressure, then reliability is improved, but test cost and device complexity increase
Solution Approach 1:
The patent creates a multi-functional evaluation system where a single test setup simultaneously measures current, voltage, air pressure, and temperature. This universal system evaluates nozzle material performance under various conditions without requiring separate specialized equipment for each parameter, reducing overall device complexity while maintaining reliability.
Solution Approach 2:
The patent combines multiple measurement functions into one integrated system. By merging current sensing, voltage sensing, air pressure sensing, and temperature detection into a unified evaluation framework, the system achieves reliable high-temperature and high-pressure performance assessment without the complexity of multiple separate testing devices.
3Device complexity
If traditional single-parameter testing is used for nozzle material evaluation, then device complexity is reduced, but measurement precision and evaluation accuracy deteriorate
Solution Approach 1:
The patent transitions from static single-parameter testing to dynamic multi-parameter monitoring. By continuously measuring current, voltage, air pressure, and temperature during the arcing process, the system captures the dynamic behavior of nozzle materials under actual operating conditions, significantly improving evaluation accuracy without requiring complex equipment.
Solution Approach 2:
The patent introduces a dynamic decision factor as an intermediary that integrates multiple measurement parameters. This intermediary synthesizes current, voltage, air pressure, and temperature data into a comprehensive evaluation metric, achieving high measurement precision while keeping the test system relatively simple through data integration rather than physical complexity.
4Measurement precision
If frequent replacement of test material is performed to ensure adequate testing, then measurement precision is improved, but loss of substance and test cost increase
Solution Approach 1:
The patent enables continuous evaluation of nozzle material through dynamic multi-parameter monitoring during the arcing process. By capturing comprehensive data throughout the test duration, the system maximizes information extraction from each test run, reducing the need for frequent material replacement while maintaining high measurement precision through continuous data collection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method provides a comprehensive and accurate evaluation of nozzle materials by considering multiple parameters, reducing test complexity and cost while ensuring the performance reflects practical application conditions.
Implementation Method 1
carrying out an arcing test on the nozzle material through the current signal to form an electric arc
Implementation Method 2
receiving and processing a sensing electric signal of the nozzle material, and obtaining current data, voltage data
Implementation Method 3
a sensing electric signal includes a current-sensing electric signal and an air pressure-sensing electric signal
Implementation Method 4
detecting temperature data of the nozzle material
Data Source
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AI summary
The example of the present invention discloses a method for evaluating a nozzle material of an environmentally-friendly gas circuit breaker on the basis of a combination-weighted multiparameter dynamic decision factor. The method specifically includes: outputting a current signal; carrying out an arcing test on the nozzle material through the current signal to form an electric arc; receiving and processing a sensing electric signal of the nozzle material, and obtaining current data, voltage data, and air pressure data, where the sensing electric signal includes a current-sensing electric signal and an air pressure-sensing electric signal; detecting temperature data of the nozzle material; and evaluating the nozzle material of the environmentally-friendly gas circuit breaker through the current data, the voltage data, the air pressure data, and the temperature data of the nozzle material in the formation process for the electric arc under the actions of different output currents. According to the present invention, dynamic changes of the nozzle material and a surrounding environment of the nozzle material in the arcing process are directly reflected through the temperature data, the current data, the voltage data, and the air pressure data, so that the performance of the nozzle material can be more comprehensively and accurately evaluated.