Instrument Transformer Particle Insulation for Automated Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing instrument transformers face challenges with manual kraft paper wrapping for insulation, which is time-consuming, costly, and prone to human errors, making automation difficult and increasing production faults.
Innovation Solution
Utilizing particles, such as paper material or cellulose, in powder form, impregnated with insulating fluids like mineral oil, for automated insulation within the instrument transformer housing, enhancing electrical isolation and reducing production time and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual kraft paper wrapping is used for insulation, then electrical isolation is achieved, but production time increases and costs rise
Solution Approach 1:
The invention changes the physical state of the insulation material from solid sheets (kraft paper) to particles (powder form). This parameter change enables automated filling processes while maintaining effective electrical isolation, thereby reducing production time and costs without compromising insulation reliability.
2Reliability
If manual kraft paper wrapping is used for insulation, then electrical isolation is achieved, but production costs increase due to manpower
Solution Approach 1:
The invention replaces the manual mechanical wrapping process with an automated particle filling system. The particle-filled insulation can be automatically dispensed and distributed within the housing, eliminating the need for manual labor while achieving the same electrical isolation effect, thus reducing production costs.
3Reliability
If manual kraft paper wrapping is used for insulation, then electrical isolation is achieved, but human errors increase and automation becomes difficult
Solution Approach 1:
By changing the insulation material from sheets to particles, the invention enables automated handling and filling processes. Particles can be easily conveyed, measured, and distributed by automated equipment, eliminating the complexity of automating manual wrapping operations while ensuring consistent electrical isolation quality.
4Productivity
If particles are used for insulation, then automation and production efficiency improve, but impregnation time may increase
Solution Approach 1:
The invention performs the impregnation process before filling the particles into the housing. By pre-impregnating the particles with insulating fluid, the actual filling and assembly process is accelerated, and the overall production time is reduced despite the additional impregnation step. This preliminary action ensures that particles are ready for immediate installation without requiring lengthy on-site impregnation.
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 use of particles provides efficient, cost-effective insulation with high fill factor and surface-to-volume ratio, minimizing human intervention and reducing faults, thus improving production efficiency and electrical isolation.
Implementation Method 1
Particles are impregnated by an insulating fluid. The insulating fluid can be or can comprise oil, particularly mineral oil and/or a synthetic oil, and/or ester, particularly vegetable esters.
Implementation Method 2
The active part is electrically insulated by an isolation material from the housing of the instrument transformer. These materials are good isolation materials, especially at high voltages up to 1200 kV.
Data Source
Figure 1
Figure 2~3
AI summary
The present invention relates to an instrument transformer (1) for high current and/or high voltage conversion, comprising a housing and at least an active part, which is electrically insulated by an isolation material. The isolation material comprises particles (14). A method for the instrument transformer (1) comprises the filling of a housing of the instrument transformer (1) with particles (14), particularly with particles (14) of paper material and/or cellulose, which were impregnated by an insulating fluid (10), particularly mineral oil and/or a synthetic oil, and/or ester, particularly vegetable esters.