The Epoxy Resin Cast Dry-Type Power Transformer series is designed to directly reduce the 35kV grid power supply to a 400V distribution supply for end users. By eliminating 10kV power transmission and transformation, these transformers significantly reduce operating costs and minimize multi-level power transformation project requirements, offering substantial social and economic benefits.
Enhanced Design for Reliability
Optimized high-voltage coil structures improve inter-layer voltage and capacitance distribution. This enhancement strengthens the transformer’s ability to withstand atmospheric and operational overvoltage impacts, improves electric field distribution, and effectively reduces partial discharge, ensuring long-term operational reliability.
Standards Compliance
The transformers comply with major international standards to ensure safety and performance:
IEC 60076-11: Power transformers – Part 11: Dry-type transformers
IEC 60529: Degrees of protection provided by enclosures (IP Code)
Key Advantages
These dry-type power distribution transformers offer multiple benefits for modern power systems:
They have low losses and provide efficient power saving, ensuring economical operation. Flame-retardant, explosion-proof, non-polluting, and maintenance-free design allows installation directly in load centers, reducing investment costs. The optimized coil structure results in minimal partial discharge, while the coil’s resistance to moisture and dust ensures high mechanical strength and reliability. Additionally, the transformers are short-circuit resistant and exhibit strong lightning-impact resistance. Optional temperature control and display systems are available for enhanced operational monitoring.
Regular Service Conditions
These transformers are designed to operate under the following conditions:
Elevation: below 1000m above sea level
Ambient temperature:
Highest ambient temperature: +40℃
Highest daily average air temperature: +20℃
Lowest outdoor ambient temperature: -25℃
Dry Resin Cast Transformers FAQ
1. What certificates do your transformers have?
CE, ISO, and test certificates are provided.
2. What is the capacity range of your transformers?
50-20000kVA. Customized solutions are available within this range.
3. What is the warranty period?
We offer a 12-month warranty for all transformers.
4. What is the delivery time?
Production cycle is 15-25 days after receiving advance payment. Transportation time depends on your region and shipping method.
5. Which countries do you export to?
We provide global supply, with exports to over 60 countries across Southeast Asia, the Middle East, South America, Africa, and the Americas.
Type description
Performance parameters
| Ratedcapacity (kVA) | Voltagegroup | Vectorgroup | Impedance voltage (%) | No-loadloss (W) | Loadloss120℃ (W) | No-load current (%) | ||
| HV (kV) | Tap range | LV(kV) | ||||||
| 50 | 33 35 38.5 | ±2×2.5% | 0.4 | YynO or Dyn11 | 6.0 | 450 | 1420 | 2.3 |
| 100 | 680 | 2090 | 2.0 | |||||
| 160 | 790 | 2810 | 1.5 | |||||
| 200 | 880 | 3325 | 1.5 | |||||
| 250 | 990 | 3800 | 1.3 | |||||
| 315 | 1170 | 4510 | 1.3 | |||||
| 400 | 1370 | 5410 | 1.1 | |||||
| 500 | 1520 | 6650 | 1.1 | |||||
| 630 | 1860 | 7690 | 1.0 | |||||
| 800 | 2160 | 9120 | 1.0 | |||||
| 1000 | 2430 | 10400 | 0.75 | |||||
| 1250 | 2830 | 12700 | 0.75 | |||||
| 1600 | 3240 | 15400 | 0.75 | |||||
| 2000 | 3820 | 18200 | 0.75 | |||||
| 2500 | 4450 | 21800 | 0.75 | |||||



 10-30~5000_20 Series Dry-type Transformer.webp)
10, SC(B)11-30~4000_10 Series Dry-Type Transformer.webp)
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