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:
| Rated Capacity (kVA) |
Rated Voltage (KV) | Vector Group | Short-Circuit Impedance (%) |
Loss(kW) | No-load Current (%) |
Weight(kg) | Outline Dimension (L×W×H,mm) |
Enclosure Dimension (L×W×H,mm) |
|||
| High voltage (KV) | High voltage tapping range | Low voltage (KV) | No-load Losses | Load Losses | |||||||
| 30 | 6KV 6.3KV 6.6KV 10KV 11KV 13.8KV |
±5% ±2× 2.5% |
0.4 | Dyn11 Yyn0 |
4 | 0.195 | 0.71 | 2.5 | 340 | 780×450×790 | 900×900×1080 |
| 50 | 0.275 | 0.95 | 2.2 | 430 | 840×450×855 | 1000×900×1150 | |||||
| 80 | 0.375 | 1.385 | 2.1 | 560 | 900×600×885 | 1060×1000×1180 | |||||
| 100 | 0.405 | 1.58 | 1.9 | 720 | 920×600×900 | 1080×1000×1200 | |||||
| 125 | 0.475 | 1.895 | 1.8 | 830 | 980×600×960 | 1140×1000×1260 | |||||
| 160 | 0.55 | 2.14 | 1.8 | 940 | 1040×710×1000 | 1240×1050×1300 | |||||
| 200 | 0.63 | 2.54 | 1.6 | 1250 | 1070×710×1200 | 1270×1050×1450 | |||||
| 250 | 0.73 | 2.77 | 1.5 | 1450 | 1140×710×1245 | 1340×1050×1550 | |||||
| 315 | 0.89 | 3.485 | 1.4 | 1600 | 1180×710×1300 | 1360×1050×1600 | |||||
| 400 | 0.99 | 4.01 | 1.4 | 1980 | 1380×960×1425 | 1540×1150×1720 | |||||
| 500 | 1.175 | 4.91 | 1.3 | 2300 | 1400×960×1515 | 1570×1150×1810 | |||||
| 630 | 1.36 | 5.91 | 1.3 | 2570 | 1440×960×1595 | 1610×1150×1900 | |||||
| 630 | Dyn11 Yyn0 |
6 | 1.315 | 5.995 | 1.2 | 2550 | 1500×960×1405 | 1660×1150×1700 | |||
| 800 | 1.54 | 6.99 | 1.2 | 2810 | 1560×960×1575 | 1680×1150×1870 | |||||
| 1000 | 1.79 | 8.17 | 1.1 | 3210 | 1640×960×1685 | 1750×1200×1980 | |||||
| 1250 | 2.115 | 9.75 | 1.1 | 3400 | 1700×1255×1815 | 1850×1400×2120 | |||||
| 1600 | 2.48 | 11.8 | 1 | 4150 | 1800×1255×1980 | 1920×1400×2280 | |||||
| 2000 | 3.36 | 14.535 | 0.9 | 5600 | 940×1255×2110 | 2050×1450×2420 | |||||
| 2500 | 4.05 | 17.27 | 0.8 | 6300 | 2060×1255×2350 | 2170×1450×2750 | |||||
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.
الأسئلة الشائعة
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.
AR 
EN 
FR 
ES 
PT 
IT 
RU