Wireless Sensor Monitoring Substation Disconnects
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Solution Overview
Problem
Current methods for monitoring substation disconnects and transmission line switches are inadequate as they rely on mechanical stops for closure verification, leading to potential overheating and degradation due to high resistance connections, and infrared inspections are infrequent and ineffective in detecting small temperature differences.
Innovation Solution
A wireless sensor apparatus equipped with a temperature measurement device, processor, and transmitter is positioned on or near the disconnect or switch to continuously monitor temperature and arm position, transmitting data to a remote receiver for real-time analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If infrared inspections are performed one or two times per year, then inspection frequency is maintained at manageable levels, but the ability to detect small temperature differences and early degradation is severely limited
Solution Approach 1:
The patent implements continuous temperature monitoring using wireless sensors that continuously measure and transmit temperature data from disconnects and switches. This continuous monitoring eliminates the periodic gaps in traditional infrared inspections, enabling immediate detection of temperature anomalies and small temperature differences as they develop, thereby resolving the contradiction between detection precision and inspection frequency.
2Reliability
If mechanical stops are used for closure verification, then the device structure remains simple, but improper closing and high resistance connections occur undetected
Solution Approach 1:
The patent replaces mechanical closure verification methods with electronic sensing and wireless communication systems. Temperature sensors, accelerometers, and other electronic devices monitor the actual closure status and thermal conditions, providing reliable verification of proper closing without relying solely on mechanical stops. This substitution increases reliability while the modular wireless sensor design keeps the added complexity manageable.
3Productivity
If high resistance connections are allowed to develop, then operational continuity is maintained, but overheating and catastrophic failure eventually occur
Solution Approach 1:
The patent implements a feedback system where wireless sensors continuously monitor temperature and transmission the data to remote receivers. When temperature exceeds predetermined thresholds or abnormal patterns are detected, the system generates alerts that enable operators to address issues before they lead to catastrophic failure. This feedback mechanism maintains operational continuity by enabling proactive maintenance while preventing dangerous temperature increases.
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
This solution enables continuous monitoring of substation disconnects and transmission line switches, preventing overheating and degradation by ensuring proper closure and identifying potential issues before they lead to catastrophic failures.
Implementation Method 1
positioning the temperature measurement device in thermal contact with the disconnect or switch
Data Source
AI summary
An apparatus and method for continuously monitoring substation disconnects and transmission line switches to detect improper closing of the disconnects or switches is disclosed. The method includes the step of providing an apparatus adapted to measure, process, and transmit data associated with a disconnect or switch. The method further includes the steps of positioning the apparatus on or in close proximity to the disconnect or switch, using the apparatus to collect data of the disconnect or switch and processing the data for transmission to a remote receiver, and transmitting the processed data to a remote receiver.