Product Overview
Eaton’s cast resin dry-type transformers are a comprehensive range of high-reliability, maintenance-free power distribution solutions covering voltage up to 35kV and rating up to 31.5MVA with BIL up to 200kV. The product line includes 10kV/20kV/35kV distribution transformers (100-3500kVA) and 35kV power transformers (4000-25000kVA), available in both copper and aluminum winding configurations. Built with advanced cast resin technology, the transformers deliver exceptional safety, efficiency, and stability while complying with GB, IEC, and UL standards. With over a century of transformer heritage and global manufacturing facilities, Eaton provides customized solutions with rapid response to customer demands.
Product Characteristics
• Voltage: Up to 35kV
• Rating : Up to 31.5MVA
• BIL : Up to 200kV
Product Advantages
● Zero Maintenance:Maintenance-free design eliminates routine servicing costs and downtime, significantly reducing total cost of ownership compared to oil-immersed alternatives.
● High Efficiency:Low loss, low partial discharge, and low noise design contributes to energy-efficient power distribution and compliant operation in noise-sensitive environments.
● Innovation Leadership:World’s leading three-phase integrated 110kV cast resin technology represents cutting-edge innovation in dry-type transformer design.
● Global Standards Compliance:Customized manufacturing capabilities with compliance to GB, IEC, and UL standards enable global deployment across diverse regulatory markets.
● Global Manufacturing Network:Rapid response to customer demands backed by global transformer factories (US, Turkey, China) and over 100 years of technology heritage.
● Design Flexibility:Optimal layout schemes adapt to various substation configurations. HV tapping links can adjust to system voltage when powered off, providing operational flexibility.
Product Specifications
| Rated Power (kVA) | No-load Loss (kW) | On-load Loss 120℃ (kW) | Short Circuit Impedance (%) | Noise (Lm-1) (dB) | No-load Current (%) | Base Frame Q1×Q2 (mm) | Weight (kg) | Outline Dimension (L×W×H) (mm) | Enclosure Dimension IP20/IP21 (L×W×H) (mm) |
|---|---|---|---|---|---|---|---|---|---|
| 100 | 0.4 | 1.57 | 4 | 47 | 1.5 | 550×660 | 640 | 1020×760×920 | 1600×1200×1400 |
| 125 | 0.47 | 1.85 | 4 | 48 | 1.3 | 550×660 | 700 | 1100×760×960 | 1600×1200×1400 |
| 160 | 0.54 | 2.13 | 4 | 49 | 1.3 | 660×660 | 860 | 1160×760×1000 | 1600×1200×1400 |
| 200 | 0.62 | 2.53 | 4 | 50 | 1.1 | 660×660 | 950 | 1200×760×1080 | 1600×1200×1400 |
| 250 | 0.72 | 2.76 | 4 | 50 | 1.1 | 660×660 | 1120 | 1240×760×1060 | 1600×1300×1500 |
| 315 | 0.88 | 3.47 | 4 | 50 | 1 | 660×660 | 1320 | 1300×760×1060 | 1600×1300×1500 |
| 400 | 0.98 | 3.99 | 4 | 50 | 1 | 660×660 | 1450 | 1400×760×1080 | 1800×1400×1600 |
| 500 | 1.16 | 4.88 | 4 | 50 | 1 | 660×660 | 1690 | 1480×760×1100 | 1800×1400×1600 |
| 630 | 1.34 | 5.88 | 4 | 50 | 0.85 | 660×660 | 2100 | 1500×760×1240 | 1800×1400×1600 |
| 800 | 1.3 | 5.96 | 6 | 50 | 0.85 | 660×660 | 1920 | 1580×760×1080 | 2000×1400×1800 |
| 1000 | 1.52 | 6.96 | 6 | 51 | 0.6 | 820×820 | 2420 | 1680×920×1260 | 2000×1400×1800 |
| 1000 | 1.77 | 8.13 | 6 | 52 | 0.6 | 820×820 | 2760 | 1720×920×1340 | 2100×1400×1800 |
| 1250 | 2.09 | 9.69 | 6 | 54 | 0.5 | 820×820 | 3180 | 1780×920×1400 | 2100×1400×1800 |
| 1600 | 2.45 | 11.73 | 6 | 54 | 0.5 | 820×820 | 3960 | 1940×920×1420 | 2300×1500×2000 |
| 2000 | 3.05 | 14.45 | 6 | 56 | 0.5 | 1070×1070 | 4880 | 2000×1150×1580 | 2300×1500×2000 |
| 2500 | 3.6 | 17.17 | 6 | 60 | 0.5 | 1070×1070 | 5800 | 2120×1150×1680 | 2500×1600×2000 |
| 2500 | 3.05 | 15.96 | 8 | 56 | 0.5 | 1070×1070 | 4950 | 1930×1150×1630 | 2300×1500×2000 |
| 2500 | 3.6 | 18.89 | 8 | 60 | 0.5 | 1070×1070 | 5930 | 2080×1150×1780 | 2500×1600×2200 |
| 3150 | 4.28 | 22.46 | 8 | 62 | 0.5 | 1070×1070 | 7220 | 2180×1150×1840 | 2500×1600×2200 |
| 3500 | 4.63 | 24.31 | 8 | 64 | 0.5 | 1070×1070 | 8040 | 2250×1150×1900 | 2600×1600×2200 |








