Utility Structure Ventilation Using Induction Loop Power Transfer
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Solution Overview
Problem
Existing monitoring systems for electrical utility equipment lack the capability for automatic ventilation of underground structures in response to undesired conditions, which can lead to power outages and compromise network reliability.
Innovation Solution
A system that includes a vented cover with an air movement device, a first induction loop, and a gas sensor, where the gas sensor directs electrical power to the induction loop when a gas level exceeds a threshold, inducing a voltage to activate the air movement device for automatic ventilation, using a high frequency power supply to change the electrical frequency from 60 Hz to 80 kHz for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual inspection and measurement by utility personnel are used to monitor conditions, then equipment can be maintained in operating order, but the response time to undesired conditions is delayed and labor-intensive
Solution Approach 1:
The system enables automatic detection and response to undesired conditions through gas sensors and induction loops that trigger ventilation without human intervention. The utility structure monitors its own conditions and activates ventilation automatically when gas levels exceed thresholds, eliminating the need for continuous manual inspection and reducing response time.
Solution Approach 2:
The patent replaces manual mechanical inspection with an automated electrical sensing and control system. Gas sensors detect harmful gas levels, and the induction loop system automatically activates ventilation equipment, substituting human labor and manual procedures with an automated electromechanical system.
2Reliability
If physical connections are used to power the air movement device, then reliable power supply is achieved, but installation complexity and potential points of failure increase
Solution Approach 1:
The induction loop acts as an intermediary between the power source and the air movement device. Instead of direct physical electrical connections, the system uses electromagnetic induction through loops to transfer power, eliminating the need for wired connections while maintaining reliable power supply to the ventilation equipment.
Solution Approach 2:
The patent replaces physical electrical connections with wireless electromagnetic power transfer. The induction loops create magnetic fields that induce current in the air movement device, substituting mechanical wiring with an electromagnetic field-based power transmission system that reduces installation complexity and potential connection failure points.
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
Enables automatic and efficient ventilation of utility structures, reducing the risk of power outages by diluting harmful gases and enhancing working conditions for personnel by eliminating the need for physical connections, thus improving network reliability and safety.
Implementation Method 1
A first induction loop is electrically coupled to the at least one air movement device, the first induction loop being coupled to the cover. A second induction loop is disposed in the utility structure, the second induction loop being inductively coupled to the first induction loop.
Implementation Method 2
a high frequency power supply electrically coupled to the second induction loop. In addition to one or more of the features described herein, or as an alternative, further embodiments of the system may include the high frequency power supply being configured to change a first frequency of the electrical power to a second frequency. In addition to one or more of the features described herein, or as an alternative, further embodiments of the system may include the first frequency is 60 Hz and the second frequency is about 80 kHz.
Data Source
AI summary
A system and method for ventilating a utility structure enclosed by a vented cover is provided. The system includes at least one air movement device coupled to the cover. A first induction loop is electrically coupled to the at least one air movement device, the first induction loop being coupled to the cover. A second induction loop is disposed in the utility structure, the second induction loop being inductively coupled to the first induction loop. A gas sensor is operably coupled to the second induction loop to direct electrical power to the second induction loop in response to a gas level being equal to or exceeding a predetermined threshold.