33kv 35kv Dry Type Epoxy Resin Distribution Power Transformer

The SC(B)10 Series 33kV/35kV Dry-Type Epoxy Resin Transformer is designed for heavy-voltage power distribution in tough applications. Its flame-retardant epoxy-insulated windings and advanced cooling system make the transformer a safe, reliable, and environmentally friendly means of working for industrial, commercial, and critical infrastructure applications.

Product Benefits:

Safety & Longevity

Flame Retardant (Class F): Self-extinguishing properties assured by epoxy resin encapsulation, providing better fire safety.

Explosion-Proof Construction: Best suited for hazardous conditions such as offshore platforms and chemical plants.

Zero Maintenance: Pollution-resistant design prevents corrosion, assuring longevity and removing the requirement for regular maintenance.
High Efficiency & Low Loss

Ultra-Low Partial Discharge: Achieved using precision vacuum casting and reinforced glass fiber, ensuring less than 5pC of partial discharge.

Noise Reduction: Silent operation (<60dB), thanks to F-grade core binding and air flow optimization.
Overload Capacity: Accommodates 40% continuous overload with forced-air cooling (AF) for increased flexibility and reliability.
Smart Monitoring & Control

Integrated Thermal Protection: Includes auto-shutdown, fault alarms, and “black box” data logging to monitor continuously.
Remote Management: With RS485 interface, allowing real-time monitoring via SCADA systems to guarantee efficient operation management.
Compact & Versatile

Space-Saving Design: Most appropriate for city area substations, skyscrapers, and underground locations.

Technical Parameters:

Produet Details

Wide Applications:

Industrial: Power plants, steel mills, oil refineries
Urban Infrastructure: Subways, airports, hospitals
Renewable Energy: Wind farms, solar power stations

Design & Manufacturing Excellence

Core Construction:

Material: Imported cold-rolled silicon steel with three-step inclined joints for improved performance.
Loss Reduction: No-load loss is <0.8W/kg, with no-load current <1.2% for minimal energy waste.
Surface Treatment: Anti-corrosion coating on fasteners ensures a prolonged lifespan and reliability.

Windings:

High-Voltage Winding: Vacuum-cast epoxy resin with glass fiber reinforcement ensures durability.
Low-Voltage Winding: Copper foil winding structure for uniform current distribution, featuring axial cooling ducts for efficient heat dissipation.
Partial Discharge: Maintained below 5pC to ensure transformer longevity.
Mechanical Strength: Tested to 250kN short-circuit resistance for superior strength.

Production Process:

Precision CNC Winding: Ensures ±0.1mm coil accuracy for consistent and reliable performance.

Vacuum Impregnation: Air bubbles are eliminated for void-free insulation, ensuring better performance and durability.

Curing & Testing: 24-hour thermal cycling and rigorous testing ensure the transformer meets IEC 60076-11 standards.

FAQ

Q1: What is the price range for a 33kV epoxy resin transformer?
A: Pricing depends on factors such as capacity (kVA), customization (e.g., tap options, cooling method), and order volume. Please contact us directly for a personalized quote.

Q2: Is this transformer suitable for coastal environments?
A: Yes, the epoxy resin encapsulation, along with the IP54 rating, provides excellent resistance to salt spray, humidity, and dust, making it ideal for coastal and challenging environments.

Q3: Can the transformer operate at full load continuously?
A: Yes, under natural cooling (AN), the transformer can handle 100% load continuously. Forced-air cooling (AF) allows for a 40% overload capacity, enhancing operational flexibility.

Q4: What certifications does this transformer hold?
A: This product is compliant with GB/T 10228-2015, GB 6450-1986, and international standards equivalent to IEC 60076, ensuring high quality and global acceptability.

Q5: What is the typical delivery time for these transformers?
A: Standard units are typically shipped within 4–6 weeks. Custom-designed units may require 8–10 weeks for delivery, depending on specifications.

Q6: Do you offer after-sales support?
A: Yes, we provide comprehensive after-sales support, including 24/7 technical assistance, a 1-year warranty, and lifetime maintenance guidance to ensure optimal performance throughout the transformer’s lifespan.

Why Choose Us?

Global Expertise: Over 15 years of experience in power grid solutions, serving more than 50 countries.

Custom Solutions: We offer tailored designs, voltage ratios, enclosures, and monitoring systems to meet specific needs.

Fast Delivery: With an annual capacity of over 10,000 units, we ensure quick delivery without compromising on quality, supported by our ISO、CE-certified quality control processes.