

It is a high strength FRP structure by using Swiss Ciba-Geigy epoxy resin as insulating material and adopting German HEDRICH vacuum casting equipment to cast epoxy resin in vacuum and curing. The high-voltage coil is wound by copper wire and vacuum cast molding, while the low-voltage coil is wound by copper foil. It has the characteristics of good electrical performance, strong lightning shock resistance, strong short circuit resistance, small size and light weight. Temperature display controller can be installed to display and control the operating temperature of transformer winding to ensure the normal service life of transformer.


| Item | Unit | Parameter | |
| Voltage level | kV | 3.0-3.6 | |
| Capacity range | kVA | 30-20,000 | |
| Frequency | Hz | 50 or 60 | |
| Voltage regulating mode | Off-circuit-tap-changing or on-load-tap-changing | ||
| Tap range | ± 5% or ±2×2.5% | ||
| Phase number | Three-phase, single-phase | ||
| Connection symbol | Y, yn0; D, yn11; as per customer requirements | ||
| Cooling method | AN or AN/AF | ||
| Protection grade | IP00, IP20 (indoor) | ||
| Insulation class | Class F | ||
| Using environment | Rel. Humid. | 100% | |
| Ambient temperature | oC | <= 40 | |
| Temperature limit | oC | 155 | |
| Max. temperature rise | K | 100 | |
| Altitude | m | <=1000 | |
HUIHAI
