Minimum Order: 0
Quality/Safety Certification: 0.00
220kV on-load-tap-changing power transformer is made of high-quality silicon-steel sheets, and laminated by steps.
220kV on-load-tap-changing power transformer is made of high-quality silicon-steel sheets, and laminated by steps. It is advantageous in low loss, low noise, low voltage partial discharge and high anti short-circuit capacity. The dynamical and thermal stability of this transformer, of which the coils are winded by high-quality oxygen-free copper wire as well as used pre-compressing brackets processes and interior and exterior structure. The transformer tank used wave form shell, has very nice appearance, the core is with D shape yoke and 45 angle seaming. The core and oil box are well fixed and well protected on moving.
31500-420000/220 combined type transformer technical parameter |
Ratedpower (kVA) | Valtage | Connction | 9 loss(kW) | 10 loss(kW) | 11 loss(kW) | No-load Loss(%) | Impedence Voltage(%) | H.V(kV) | L.V(kV) | No-Load Loss | Load Loss | No-Load Loss | Load Loss | No-Load Loss | Load Loss | 31500 | 220 242 ±2×2.5% | 6.3 6.6 10.5 11 | YNd11 | 35 | 135 | 31.5 | 128.3 | 28 | 128.3 | 0.7 | 12-14 | 40000 | 41 | 157 | 36.9 | 149.2 | 32.8 | 149.2 | 0.7 | 50000 | 49 | 189 | 44.1 | 179.6 | 39.2 | 179.6 | 0.65 | 63000 | 58 | 220 | 52.2 | 209 | 46.4 | 209 | 0.65 | 75000 | 10.5 11 13.8 | 67 | 250 | 60.3 | 237.5 | 53.6 | 237.5 | 0.6 | 90000 | 77 | 288 | 69.3 | 273.6 | 61.6 | 273.6 | 0.55 | 120000 | 94 | 345 | 84.6 | 327.8 | 75.2 | 327.8 | 0.55 | 150000 | 112 | 405 | 100.8 | 384.8 | 89.6 | 384.8 | 0.5 | 160000 | 11 13.8 15.75 18 20 | 117 | 425 | 105.3 | 403.8 | 93.6 | 403.8 | 0.49 | 180000 | 128 | 459 | 115.2 | 436.1 | 102.4 | 436.1 | 0.46 | 240000 | 160 | 567 | 144 | 538.7 | 128 | 538.7 | 0.42 | 300000 | 189 | 675 | 170.1 | 641.3 | 151.2 | 641.3 | 0.38 | 360000 | 217 | 774 | 195.3 | 735.3 | 173.6 | 735.3 | 0.38 | 370000 | 15.75 18 20 | 221 | 790 | 198.9 | 750.5 | 176.8 | 750.5 | 0.38 | 400000 | 234 | 837 | 210.6 | 795.2 | 187.2 | 795.2 | 0.35 | 420000 | 242 | 868 | 217.8 | 824.6 | 193.6 | 824.6 | 0.35 |
|