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220kV Post Composite Insulator for High Voltage Substations
Factory: We are a professional manufacturer providing OEM custom production services.
- Product Overview
- Technical Specifications
- Product Structure
- Applications
- Testing Capability
- Packaging & Customization
Product Overview
Wishpower 220kV post composite insulator is an insulating and supporting component used in high voltage power systems. It is suitable for 220kV substations, switchgear, busbar supports, capacitor banks, reactors and other electrical equipment. Compared with traditional porcelain post insulators, composite post insulators offer lighter weight, better seismic performance, stronger pollution resistance and easier installation.
The product is manufactured with a high-strength epoxy fiberglass core rod, high temperature vulcanized silicone rubber housing and hot-dip galvanized metal end fittings. It can maintain reliable electrical insulation performance in high altitude areas, polluted zones, coastal environments, humid climates and strong UV conditions.
Key advantages of Wishpower composite insulators include:
Lightweight design for easier transportation, installation and maintenance.
Silicone rubber housing with excellent hydrophobicity and hydrophobicity transfer.
High-strength fiberglass rod for stable mechanical support.
Suitable for long-term outdoor operation with good UV and aging resistance.
Customizable creepage distance, metal fittings and installation dimensions.
Core Features
High Electrical Insulation Performance
The 220kV post composite insulator effectively separates live conductors from grounded structures and helps ensure safe operation of high voltage equipment.Excellent Pollution Flashover Resistance
The silicone rubber housing provides strong hydrophobic performance, reducing flashover risks in polluted, humid, coastal and industrial environments.Stable Mechanical Strength
The fiberglass core rod offers excellent bending, compression and tensile performance for supporting high voltage busbars and equipment loads.Lightweight Structure
Compared with porcelain insulators, composite post insulators are much lighter, helping reduce transport costs and installation difficulty.Good Seismic Performance
The composite structure provides better flexibility and impact resistance, making it suitable for seismic areas and complex outdoor applications.Low Maintenance Cost
The surface is not easy to accumulate pollution, which helps extend the maintenance cycle and improve power system operating efficiency.
Product Structure
The 220kV post composite insulator generally consists of the following parts:
Fiberglass Core Rod
The main load-bearing component, providing mechanical strength and structural stability.Silicone Rubber Housing
Made of high temperature vulcanized silicone rubber with excellent insulation, weather resistance and hydrophobicity.Shed Profile
The optimized shed design increases creepage distance and improves insulation performance under polluted conditions.Metal End Fittings
Usually made of hot-dip galvanized steel or stainless steel for connection with brackets, equipment bases or busbar structures.Sealing Area
Reliable end sealing helps prevent moisture ingress and improves long-term operating reliability.
Wishpower 220kV post composite insulator is suitable for insulation and mechanical support in high voltage substations and transmission systems. With lightweight design, high mechanical strength, pollution resistance, aging resistance and easy installation, it is widely used in 220kV power projects, wind power booster stations, solar power booster stations, coastal areas and industrial pollution zones. Wishpower can provide both standard products and customized high voltage insulation solutions for power grid projects.
Technical Specifications
| Item | Technical Data |
|---|---|
| Product Name | 220kV Post Composite Insulator |
| Brand | Wishpower |
| Rated Voltage | 220kV |
| Applicable System | High Voltage AC Power System |
| Core Rod Material | Epoxy Fiberglass Rod |
| Housing Material | High Temperature Vulcanized Silicone Rubber |
| End Fittings | Hot-Dip Galvanized Steel / Stainless Steel |
| Structure Type | Composite Post Insulator |
| Installation Method | Vertical / Horizontal / Customized |
| Creepage Distance | Customized According to Pollution Level |
| Color | Grey / Red / Customized |
| Operating Environment | Outdoor, Substation, Polluted Area, Coastal Area |
| Main Function | Insulation, Support, Fixing and Electrical Separation |
| Reference Standards | IEC 62217, IEC 61952, IEC 61462, Project Requirements |
| Customization | Drawings, Dimensions, Fittings and Creepage Distance Available |
Product Structure
Main Applications
The 220kV post composite insulator is widely used in:
220kV high voltage substations
Power transmission and transformation projects
High voltage busbar support systems
Disconnector support structures
Circuit breakers, reactors and capacitor banks
Coastal substations
Industrial pollution areas
High altitude power grid projects
Wind power booster stations
Solar power booster stations
Urban grid upgrade projects
Electrical equipment manufacturing projects
Testing Capability
Wishpower applies strict quality control and testing procedures for 220kV post composite insulators to ensure long-term reliability in high voltage power systems.
Main testing capabilities include:
Appearance and Dimension Inspection
Checks the surface quality, shed profile, fitting dimensions, mounting holes and overall assembly quality.Power Frequency Withstand Voltage Test
Verifies the insulation withstand capability under specified voltage conditions.Lightning Impulse Withstand Test
Tests the ability to withstand transient overvoltage and lightning impulse stress.Mechanical Bending Load Test
Confirms the mechanical support capacity and structural stability of the post composite insulator.Tensile and Torque Test
Evaluates the reliability of the connection between end fittings and the core rod.Hydrophobicity Test
Checks the surface hydrophobic performance of silicone rubber and evaluates pollution flashover resistance.Aging Test
Uses UV, thermal aging and damp heat tests to evaluate long-term weather resistance.Sealing Performance Inspection
Ensures the sealing structure prevents moisture from entering the core rod and fitting connection area.Partial Discharge Test
Evaluates the stability and safety of the internal insulation structure.
Packaging & Transportation
To keep products safe during transportation and storage, we use the following packaging methods:
- Individual Packaging: Each product is wrapped with protective film, packed in a high-strength carton, and cushioned with buffer materials.
- Pallet Packaging: Multiple products are fixed on wooden pallets and wrapped with stretch film, suitable for container shipping.
- Export Packaging: Fumigated wooden cases, moisture-proof treatment, and detailed packing lists are provided according to sea freight requirements.
Customization Service
WishPower can provide the following customization options according to customer requirements:
- Structural Dimensions: Adjust overall height, creepage distance, shed quantity, and shed diameter.
- End Fittings: Customize ball-socket, tongue-clevis, eye, or other interface types according to connection requirements.
- Color: Standard gray, with red, yellow, blue, and other colors available subject to MOQ.
- Special Environments: Formulations for extreme cold (-60 C), strong UV exposure, heavy pollution, and other harsh conditions.
- Voltage Classes: Full-range customization from 10kV to 1000kV.
- Marking: Customer logos or model numbers can be molded or printed on the product.
For specific customization requirements, please contact our sales engineers. We will provide a technical solution within 24 hours.
FAQ
Q: What standards can your products meet?
A: Our products can be designed and tested according to IEC, ANSI, GB and customer-specific technical requirements.
Q: Can you supply complete products for transmission and distribution projects?
A: Yes. We can provide composite insulators, surge arresters, fuse cutouts, insulating bushings and related power insulation products.
Q: What information should I provide for a quotation?
A: Please provide voltage level, product type, quantity, application environment, standard, drawings or technical specifications if available.
Q: How do I choose the right composite insulator for my project?
A: You can provide voltage level, installation type, mechanical load, creepage distance and operating environment. Our team will recommend the suitable model.
Q: Are composite insulators suitable for coastal areas?
A: Yes. Composite insulators with silicone rubber housing provide good hydrophobicity and anti-pollution performance, making them suitable for coastal and polluted environments.
