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11/22KV Dry-Type Transformer is mainly used for high-rise buildings, power plants, commercial centers, and other places that require fire, explosion, and moisture protection through natural cooling or air cooling. Its iron core and winding have no oil insulation, and the shell is made of stainless steel, cold-rolled sheet or aluminum alloy, with flame retardant, explosion-proof, and no maintenance requirements.
Model Number: SCB10、SCB11、SCB13 Service Voltage: 11KV-22KV
Rated Capacity: 30-800kVA Phase: Three
| 11-22KV Dry-type Transformer | ||||||||
|
Rated Capacity (kVA) |
High Voltage（kV) | Tapping Range | Low Voltage (kV) | Vector Group | No-Load Loss(w) | Load Loss | No-Load Current (%) | Short Circuit Impedance (%) |
| 50 |
11 15 20 22 |
±5%±2×2.5% | 0.4 | Dyn11 or Yyn0 | 345 |
1180 | 2.4 |
6 |
| 100 | 545 | 1910 | 2.2 | |||||
| 160 | 682 |
2780 |
1.8 | |||||
| 200 | 745 | 2820 | 1.8 | |||||
| 250 | 855 |
3280 |
1.6 | |||||
| 315 | 980 | 3910 | 1.6 | |||||
| 400 | 1165 |
4640 |
1.4 | |||||
| 500 | 1365 | 5550 | 1.4 | |||||
| 630 | 1545 |
6550 | 1.2 | |||||
| 800 | 1775 |
8100 |
1.2 | |||||
| 1000 | 2090 |
9370 |
1.0 | |||||
| 1250 | 2410 |
11050 |
1.0 | |||||
The common structures of dry-type transformers include open type, closed type, and cast type, each suitable for different environmental conditions to meet diverse usage needs. The cast winding is made of epoxy resin or other resins to achieve the main insulation function; The closed winding is enclosed in a shell and is not directly connected to the outside atmosphere. This design is mainly used for mining equipment, as its sealing and heat dissipation conditions are relatively poor, but it has explosion-proof characteristics.
Dry type transformers use advanced manufacturing processes and materials, such as cold-rolled silicon steel sheets and epoxy resin, to provide excellent insulation performance and mechanical strength.
The dry-type transformer is equipped with a comprehensive temperature detection and protection system, using intelligent signal temperature control, which can monitor and display the working temperature of the three-phase winding in real time, automatically control the start and stop of the fan, and have functions such as alarm and trip.
