| Brand | Switchgear parts |
| Numero sa Modelo | 550kV Aluminum libre ring basin insulator |
| Naka nga boltahang rated | 550kV |
| Serye | RN |
Ang 550kV aluminum free ring pot insulator usa ka pangunahon nga komponente sa insulation sa high-voltage GIS equipment, ug ang iyang disenyo nagpadayon sa miniaturization ug environmental protection pinaagi sa structural optimization ug material innovation. Sumala ha una nga teknikal nga analisis:
Core design features
Geometry optimization
Pag-adopt og contour design nga "thick on both sides and thin in the middle", ang maximum electric field strength along the concave surface gikinahanglan isip 25.4% ug ang deformation gikinahanglan isip 29.9%
Pag-optimize sa thickness variables (H ₁, H ₂, etc.) ug contour variables (C ₁ ₂, C ₁ ∝, etc.) pinaagi sa genetic algorithm aron makabalanse ang electrical ug mechanical performance
Advantages of aluminum free ring structure
Pag-cancel sa traditional metal shielding rings aron ma-avoid ang local electric field distortion ug pag-simplify sa manufacturing processes
Pag-reduce sa SF6 gas usage isip 15% ug epoxy composite material usage isip 6.1%
2、 Application of dielectric gradient materials
3D printing+casting process
Paggamit og aluminum oxide/photosensitive resin 3D printing low dielectric constant body (ε=3.98-4.20), titanium dioxide/epoxy resin casting high dielectric constant region (ε=11.32-14.58)
Ang electric field distortion near the grounding flange gibag-o, ug ang flashover voltage naka-increase isip 13.8%
Electric field regulation effect
Humanudto sa optimization, gibana ang high dielectric constant region sa usa ka side sa convex surface near the outer flange of the insulator, nga dako kaayo ang pag-alleviate sa phenomenon of electric field concentration
3、 Performance parameters and validation
Electrical performance
Power frequency withstand voltage 230kV, lightning impulse withstand voltage 550kV, local discharge capacity ≤ 5pC
Kon may metal foreign objects, ang flashover voltage mahimo pa gyud nga mogrow isip 6.7%
Mechanical strength
Ang maximum deformation gireduce isip 0.45mm, ug ang interface stress below 70MPa
Verify reliability through hydraulic failure test (1.5 times rated pressure)
4、 Application and Environmental Benefits
Typical scenario
Suitable for 550kV GIS equipment, sama sa ultra-high voltage transmission projects o high-altitude environments
Mahimo gyud itong molihok sa traditional "R-arc" metal shielding structure ug pag-simplify sa miniaturization transformation of GIS
Environmental Contribution
Pag-reduce sa SF6 gas usage isip 15%, naa sa environmental trends
5、 Patent and tooling technology
Pressure resistant tooling design: adopting a transition tank body ug conductive spring structure, supporting synchronous detection of multiple bowl insulators
Embedded optimization: Ang cylindrical conductive electrode gigamit og arc-shaped protrusions aron mapadako ang sealing ug electric field uniformity