20kV Dry-Type Power Transformer, Class F Insulation
Applications
The 20kV dry-type power transformer is most commonly placed at airports, train stations, large commercial buildings, high-rise residential buildings, and places where fire hazard is a serious factor to consider.
Standards
IEC60076
GB10094
Features
Optimal electrical performance is due to world-class standards according to which the dry-type power transformer is built. This dry-type distribution transformer is highly safe, reliable, maintenance free, easy to install, cost-saving, and made of fire-rated materials. Typically placed at the load center, the transformer operates pretty well under 100% humidity conditions. It can get started safely without preliminary drying. The metal housing can be customized.
Winding taps are fitted along the winding with a protective cover.
High voltage insulators provides maximum insulation between live conductors and the ground.
Windings are at least 130mm away from the top two yokes. The closer the windings are to the top yoke, the more likely electrical breakdown occurs.
| Rated Capacity (KVA) | Vector Group | Short-circuit Impedance (%) | No-load Loss | Load Loss(w) | Load Current (%) | |||||
| (w) | (120.C) | |||||||||
| H.V | Tapping Range | L.V | SCB9 | SCB10 | SCB9 | SCB10 | ||||
| (kv) | (kv) | |||||||||
| 50 | 380 | 340 | 1300 | 1240 | 2.4 | |||||
| 100 | 600 | 540 | 2100 | 2000 | 2.2 | |||||
| 160 | 750 | 680 | 2600 | 2470 | 1.8 | |||||
| 200 | 820 | 740 | 3100 | 2950 | 1.8 | |||||
| 250 | 940 | 850 | 3600 | 3420 | 1.6 | |||||
| 315 | 1080 | 970 | 4300 | 4090 | 1.6 | |||||
| 400 | 1280 | 1150 | 5100 | 4850 | 1.4 | |||||
| 500 | 1500 | 1350 | 6100 | 5800 | 1.4 | |||||
| 630 | 1700 | 1530 | 7200 | 6840 | 1.2 | |||||
| 800 | 1950 | 1760 | 8700 | 8270 | 1.2 | |||||
| 1000 | 2300 | 2070 | 10300 | 9790 | 1 | |||||
| 1250 | 2650 | 2390 | 12150 | 11540 | 1 | |||||
| 1600 | 20 | 5% | Dyn11 | 6 | 3100 | 2790 | 14600 | 13870 | 1 | |
| 2000 | 3600 | 3240 | 17250 | 16390 | 0.8 | |||||
| 2500 | 22 | 2x2.5% | 0.4 | Yyn0 | 4300 | 3870 | 20400 | 19380 | 0.8 | |
| 2000 | 8 | 3600 | 3240 | 18800 | 17860 | 0.8 | ||||
| 2500 | 24 | 4300 | 3870 | 22400 | 21280 | 0.8 | ||||
