Oil Immersed Non-excitation Tap-changing Transformer of 35kV and Below
Tap-changing Transformer of 35kV and Below
This kind of product is applied to power system of three-phase, 50Hz as well as 
35kV and below, it is the main transformer equipment of medium and small-sized 
transformer substation, supplies power distribution, power and illumination for 
the industry and agriculture.
The company introduces in domestic and overseas advanced technique, adopts 
the latest material and optimizes design, which enables the product structure 
more reasonable, and greatly improves the product electric strength, mechanical 
strength and heat-sinking capability. S9 series product has passed the short-circuit 
test prepared by Wuhan High Voltage Research Institute and also the test 
prepared by National Center for Quality Supervision & Test of Transformer.
 
 
 
| Rated capacity (kVA) | Voltage | Connection symbol | Loss(kW) | No-load current (%) | Short circuit impedance (%) | Weight (kg) | |||||
| H.V(Kv) | Tapping range of high voltage | L.V (kV) | Load loss | No-load loss | Oil weight | Total weight | |||||
| (Y) | (D) | ||||||||||
| 30 | 6 6.3 6.6 10 10.5 11 | ±5% ±2×2.5% | 0.4 | Yyno Dyn11 | 0.60 | 0.63 | 0.10 | 2.1 | 4 | 65 | 275 | 
| 50 | 0.87 | 0.91 | 0.13 | 2.0 | 80 | 360 | |||||
| 63 | 1.04 | 1.06 | 0.15 | 1.9 | 87 | 415 | |||||
| 80 | 1.25 | 1.31 | 0.18 | 1.8 | 95 | 470 | |||||
| 100 | 1.50 | 1.58 | 0.20 | 1.6 | 105 | 545 | |||||
| 125 | 1.80 | 1.89 | 0.24 | 1.5 | 120 | 640 | |||||
| 160 | 2.20 | 2.31 | 0.28 | 1.4 | 135 | 745 | |||||
| 200 | 2.6 | 2.73 | 0.33 | 1.3 | 160 | 880 | |||||
| 250 | 3.05 | 3.2 | 0.40 | 1.2 | 200 | 1035 | |||||
| 315 | 3.65 | 3.83 | 0.48 | 1.1 | 235 | 1220 | |||||
| 400 | 4.30 | 4.52 | 0.57 | 1.0 | 260 | 1405 | |||||
| 500 | 5.10 | 5.41 | 0.68 | 1.0 | 295 | 1655 | |||||
| 630 | 6.20 | 6.20 | 0.81 | 0.9 | 4.5 | 360 | 1975 | ||||
| 800 | 7.5 | 7.50 | 0.98 | 0.8 | 430 | 2355 | |||||
| 1000 | 10.30 | 10.30 | 1.15 | 0.70 | 520 | 2715 | |||||
| 1250 | 12.00 | 12.00 | 1.36 | 0.60 | 585 | 3335 | |||||
| 1600 | 14.50 | 14.50 | 1.64 | 0.6 | 660 | 3855 | |||||
 
 
 
 
 
 
 
 
 
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