Dry-Type Transformer Insulation Tube: High Dielectric FRP Cylinder for Coil Winding Support

Core Value Proposition: Enabling Safer, More Reliable Transformer Operation

 

In the critical design of dry-type transformers, the performance of the winding insulation support system directly determines the long-term reliability and safety of the equipment. Our high-dielectric FRP insulation tube, developed specifically for the transformer industry, is an innovative solution designed to meet this essential need.

 

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Why Choose Our FRP Insulation Tubes?

 

1. Superior Electrical Insulation Performance

 

· High Dielectric Strength: Utilizes specially formulated epoxy resin and glass fiber composite material, achieving a dielectric strength of ≥20 kV/mm to effectively prevent inter-winding discharge and breakdown.

· Low Dielectric Loss: tanδ < 0.01, ensuring transformer operational efficiency and reduced energy consumption.

· Uniform Electric Field Distribution: Precise roundness and wall thickness control optimizes electric field distribution and extends insulation lifespan.

 

2. Outstanding Mechanical Stability

 

· High-Strength Support: Compressive strength >300 MPa, providing stable mechanical support for windings, preventing deformation and displacement.

· Excellent Thermal Stability: Matched thermal expansion coefficient with copper windings, maintaining dimensional stability during temperature cycling.

· Vibration-Resistant Design: Effectively absorbs and dissipates electromagnetic vibrations during operation, reducing noise.

 

3. Exceptional Thermal Performance

 

· High-Temperature Rating: Continuous operating temperature up to 180°C (Class H insulation), with short-term tolerance of 220°C.

· Superior Heat Dissipation: Optimized material thermal conductivity promotes winding heat dissipation.

· Flame-Retardant Properties: UL94 V-0 rating, complying with stringent fire safety requirements.

 

4. Precise Customization Service

 

· Flexible Dimensions: Inner diameter from 20mm to 500mm, wall thickness from 2mm to 25mm, length customized to requirements.

· Diverse Shapes: Circular, square, and various special cross-sectional shapes available.

· Surface Finishing: Options include smooth, rough, or special textured surfaces to optimize impregnation effects.

· Machining Precision: Tolerance controlled within ±0.1mm, ensuring assembly accuracy.

 

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Key Technical Parameters

 

Performance Indicator Technical Parameter Test Standard

Dielectric Strength ≥20 kV/mm IEC 60243

Compressive Strength 300 MPa ISO 604

Flexural Strength 350 MPa ISO 178

Volume Resistivity 10¹⁴ Ω·cm IEC 60093

Heat Deflection Temp 200°C ISO 75

Flame Retardant Grade UL94 V-0 UL94

 

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Typical Application Scenarios

 

· Various Dry-Type Transformers: Distribution transformers, rectifier transformers, furnace transformers

· Special Transformers: Explosion-proof transformers for mining, marine transformers, traction transformers

· Reactors & Inductors: Filter reactors, current-limiting reactors

· High-Voltage Motors: Insulation support for stator windings in large motors

· New Energy Equipment: Insulation components within wind power converters and PV inverters

 

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Our Manufacturing Advantages

 

1. Professional Production Capabilities

 

· Automated Filament Winding Process: Computer-controlled fiber winding technology ensures precise control of fiber orientation and resin content.

· Fully Automated Curing System: Precise temperature and pressure control guarantees consistent product performance.

· 100% Quality Inspection: Every product undergoes dimensional, visual, and electrical performance testing.

 

2. Strict Quality Control System

 

· Raw Material Management: Uses only internationally renowned brand raw materials.

· Process Control: Comprehensive quality control from raw materials to finished products.

· Traceability: Complete production records and batch tracking system.

 

3. Technical Support & Service

 

· Design Assistance: Provides optimization suggestions for insulation structure design.

· Sample Verification: Free samples available for customer testing and validation.

· Rapid Response: 48-hour response mechanism for urgent orders.

· Technical Training: Offers product application training for customers.

 

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Value Delivered to You

 

· Enhanced Product Reliability: Optimized insulation system design can extend transformer service life by over 30%.

· Reduced Production Costs: Standardized insulation components minimize on-site processing and improve production efficiency.

· Increased Safety: Excellent fire-retardant and insulation properties ensure operational safety.

· Simplified Assembly Process: Precise dimensional control enables fast and accurate installation.

· Environmental Compliance: Halogen-free, low-smoke, non-toxic materials complying with RoHS and REACH requirements.

 

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Quality Commitment & Service Guarantee

 

We are committed to providing FRP insulation tubes that fully meet your technical requirements, offering:

 

· 18-month quality assurance period

· Technical support response time <4 hours

· Priority production scheduling for urgent orders

· Regular quality audits and improvement services

 

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Request Your Custom Solution Today!

Please provide your technical specifications or drawings.Our engineers will deliver a detailed technical proposal and quotation within 24 hours.