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Heavy Duty Enamelled Wire for Oil-Immersed Transformer Applications
Product Spotlights
High-temp enamelled copper wire engineered for oil-immersed transformers. Features Class 180 thermal rating, exceptional oil resistance, and customizable diameters (0.05-5.0mm). Manufactured under ISO9001/14000 with global logistics support. Enhances transformer efficiency and longevity while reducing maintenance costs.
US$ 4.25
500 - 4999 Kilograms
US$ 4.20
≥5000 Kilograms
Key Specifications
Get Latest Price
Application:
Other, Oil-immersed power transformers
Material:
High-purity copper conductor
Insulation Type:
High-temperature enamel coating
Payment & Shipping
Payment Methods:
Port of Shipment:
Qingdao
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Oil-immersed power transformers
Material
High-purity copper conductor
Insulation Type
High-temperature enamel coating
Thermal Class
Class 180 (H) rating
Certifications
ISO9001, ISO14000, OHSAS18001
Diameter Range
0.05mm - 5.0mm (customizable)
Packaging
Wooden spools or carton boxes
Resistance Properties
Excellent oil and chemical resistance
Since 1970, Shandong Huilong Electrical Material has specialized in manufacturing premium electrical components for global power industries. Our heavy-duty enamelled wire is engineered specifically for oil-immersed transformers, combining five decades of metallurgical expertise with advanced insulation technology to deliver unmatched reliability in demanding applications.
Core Technical Advantages:
- Superior Thermal Endurance: Withstands continuous operation at 180°C (Class H rating), maintaining insulation integrity in high-load transformer environments
- Enhanced Dielectric Strength: Multi-layer enamel coating provides >8kV breakdown voltage, preventing inter-turn shorts
- Oil Resistance: Special polymer formulation resists degradation in mineral oil, ester fluids, and silicone-based coolants
- Mechanical Durability: 3X higher abrasion resistance than standard wires, surviving winding tension up to 15N
| Parameter | Specification | Test Standard |
|---|---|---|
| Conductivity | >101% IACS | IEC 60468 |
| Elongation | ≥35% | ASTM B3 |
| Heat Shock | No cracks at 2.5d bend | IEC 60851 |
| Solderability | JIS C3003 |
Manufactured in our 20,000m² facility with automated vertical winding systems, each batch undergoes:
- In-line laser diameter measurement (±0.001mm precision)
- Partial discharge testing at 2.5x operating voltage
- 72-hour oil immersion compatibility testing
Frequently Asked Questions:
-
Q: What makes this wire suitable for oil-filled transformers?
A: Our proprietary enamel formulation maintains dielectric properties after 5,000+ hours in transformer oil at 130°C. -
Q: Can you supply wires with rectangular cross-sections?
A: Yes, rectangular profiles from 1.5mm x 4.0mm to 5.0mm x 10mm are available. -
Q: What's the lead time for customized orders?
A: Standard diameters ship in 15 days; custom formulations require 25-30 days. -
Q: Do you provide technical support for winding processes?
A: Our engineering team offers tension optimization guides and coil design consultations. -
Q: How does thermal cycling affect performance?
A: Tested for 500 cycles (-40°C to 180°C) with -
Q: What packaging prevents shipping damage?
A: Reinforced wooden spools with corner protectors and moisture barrier wrapping.
Trusted by transformer manufacturers across 6 continents, we've delivered over $100M in specialized winding materials annually through major ports including Qingdao and Shanghai. Our ISO-certified production systems and 51-100 dedicated technical staff ensure consistent quality meeting IEC 60317-0-1 and NEMA MW 1000-C standards. Contact us today for samples - enhance your transformer's efficiency and service life with Huilong's oil-optimized winding solution.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
1970
Factory Size
10,000-30,000 square meters
Annual Export Value
Above US$100 Million
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