Clean-Air High-Voltage Transducer Insulation at Elevated Pressure
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Solution Overview
Problem
Gas-insulated high-voltage transducers using sulfur hexafluoride (SF6) and alternative gases face challenges such as high sealing and handling costs, environmental risks, and health hazards due to their global warming potential and hazardous nature, especially during disposal or repairs.
Innovation Solution
A high-voltage transducer utilizing clean air as the insulating gas, maintained at a pressure range of 6 to 15 bar, with a mechanically stable housing design that includes a support insulator and a pressurized gas vessel made from materials like steel or aluminum, featuring a bursting disk for safe pressure relief and reduced environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sulfur hexafluoride (SF6) is used as insulating gas, then electrical insulation properties are improved, but environmental harm and health hazards increase
Solution Approach 1:
The patent changes the chemical composition parameter of the insulating gas from SF6 to clean air (purified atmospheric air). This parameter change eliminates the environmental and health hazards associated with SF6 while maintaining adequate electrical insulation properties through pressure optimization.
Solution Approach 2:
The patent creates an inert-protected environment by using purified and dried clean air as the insulating medium. The purification process removes contaminants that could compromise insulation, while the controlled atmosphere eliminates harmful effects on environment and health.
2Reliability
If SF6 or alternative gases are used as insulating gas, then electrical insulation is improved, but sealing expenditure and handling costs increase
Solution Approach 1:
The patent adopts clean air, which is abundant, inexpensive, and requires no special handling infrastructure. Unlike SF6 that requires specialized sealing, monitoring, and disposal systems, clean air can be readily replenished from atmospheric sources, eliminating complex gas handling infrastructure.
Solution Approach 2:
The system uses clean air that can be easily replenished from the atmosphere without requiring complex external gas supply infrastructure. The housing design with pressure monitoring allows automatic or simple manual refilling, reducing the need for sophisticated gas management systems.
3Object-affected harmful factors
If clean air is used as insulating gas, then environmental risks and handling costs are reduced, but electrical insulation effectiveness may decrease
Solution Approach 1:
The patent compensates for the lower insulation properties of air compared to SF6 by changing the pressure parameter. By operating at elevated pressures (6-15 bar), the dielectric strength of clean air is sufficiently enhanced to maintain effective electrical insulation while retaining environmental benefits.
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 reduces sealing and handling costs, minimizes environmental risks, and provides effective electrical insulation while being environmentally friendly, as clean air eliminates the hazards associated with SF6 and alternative gases.
Implementation Method 1
The insulating gas is clean air, or clean air is used as insulating gas... This pressure range ensures sufficient electrical insulation of electrical parts
Implementation Method 2
The housing may comprise a support insulator... and a pressurized gas vessel... featuring a bursting disk for safe pressure relief
Data Source
AI summary
A high-voltage transducer includes a housing, which spatially encloses at least one electrical measuring device and an insulating gas. The insulating gas is clean air, with which electrical insulation in the housing of the high-voltage transducer is carried out. A method for measuring with the high-voltage transducer is also provided.