Customized 35kv class international standard, three-phase double-winding
oil-immersed power transformer
Product feature
SZ11 series on-load voltage regulating power transformers, is applied CAD methods, with
advanced design, reasonable structure, excellent selection of materials, each index complies
to the standard of GB1094/1996 "power transformer" and GB/ t6451/1999 "technical parameters
and requirements of three-phase oil-immersed power transformer", at present is domestic leading
level. Can be widely used in urban and rural industrial and agricultural power grid, great significance
for energy saving and environmental protection.
| Type | Rated Capacit | VoltageCombination | Connecti n | oNo-LoadLoss (kW) | LoadLoss (kW) | No-Load Current(%) | Short- circuit |
| HV | Tapping | LV |
| S11-50/35 | 50 | 35 | (+5%) (+2*2.5%) | 0.4 | YynO Dyn11 | 0.17 | 1.25 | 1.4 | 6.5 |
| S11-80/35 | 80 | 0.22 | 1.65 | 1.3 | 6.5 |
| S11-100/35 | 100 | | 2.03 | 1.25 | 6.5 |
| S11-125/35 | 125 | 0.27 | 2.35 | 1.2 | 6.5 |
| S11-160/35 | 160 | 0.31 | 2.82 | 1.2 | 6.5 |
| S11-200/35 | 200 | 0.36 | 3.30 | 1.1 | 6.5 |
| S11-250/35 | 250 | 0.42 | 3.90 | 1.0 | 6.5 |
| S11-315/35 | 315 | 0.49 | 4.70 | 1.0 | 6.5 |
| S11-400/35 | 400 | 0.6 | 5.70 | 0.9 | 6.5 |
| S11-500/35 | 500 | 0.7 | 6.90 | 0.9 | 6.5 |
| S11-630/35 | 630 | 0.82 | 8.20 | 0.8 | 6.5 |
| S11-800/35 | 800 | 1.0 | 10.00 | 0.7 | 6.5 |
| S11-1000/35 | 1000 | 1.17 | 12.00 | 0.7 | 6.5 |
| S11-1250/35 | 1250 | 1.43 | 14.00 | 0.6 | 6.5 |
| S11-1600/35 | 1600 | 1.72 | 16.50 | 0.6 | 6.5 |
| S11-2000/35 | 2000 | 2.14 | 18.50 | 0.5 | 6.5 |
| S11-2500/35 | 2500 | 2.65 | 20.24 | 0.5 | 6.5 |
SCOPE of application
Because of the need of fire prevention, oil-immersed transformer is usually installed in a single
transformer room or outside, which has the characteristics of large volume, low cost, simple
maintenance, good heat dissipation, strong overload capacity and wide adaptability to the
environment.
In operation of oil-immersed transformer, the heat of winding and iron core is first transmitted
to oil, and then to cooling medium through oil. oil-immersed transformer equipment uses oil as
the main insulation means of transformer, oil-immersed transformers are widely used in power
plants, steel plants, railwaysand other large-scale mechanical manufacturing industries.
oil-immersed transformers rely on oil as cooling medium. It is suitable for power system of
petrochemical, electric power, light textile, metallurgy,machinery, building materials, coal, mine,
city construction, civil aviation, port and other industries and enterprises, as rated frequency 50HZ
rated capacity 30 ~ 1600KVA, rated voltage 10KV on high voltageside, low voltage side rated
voltage 0.4 kv power distribution.
Company profile
Qingdao Hengfengyou Electrical Engineering Co. , Ltd. is one of the large-scale electric complete
sets of manufacturers in China, specializing in oil-immersed transformers, dry-type transformers,
high-voltage Cabinets, low-voltage cabinets and substation manufacturing specialized electrical
enterprises. The company is located in the beautiful coastal city of china-qingdao. The company
has a registered capital of 10 million yuan, 20 senior technical personnel, more than 500 employees,
and a sound sales and service system, annual output value of US $1 billion, the products sell well at
home and abroad.
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