Place of Origin: | China |
Brand Name: | Tianan Power |
Certification: | ISO9001,IEC |
Model Number: | TA-1547 |
Minimum Order Quantity: | 10 unit |
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Price: | Pending |
Packaging Details: | Wooden Case |
Delivery Time: | 60 work days |
Payment Terms: | L/C, T/T |
Supply Ability: | 100 sets/year |
Transformer Type: | Oil Immersed Power Transformer | Frequency Characteristics: | High Frequency |
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Cooling Method: | ONAF/ONAN | Product Name: | 220kV Three-phase Two-winding Off-circuit Tap-changing Power Transformer |
Connection: | YNd11 | Phase Number: | 3 |
High Light: | 220kV phase converter transformer Off circuit,phase converter transformer YNd11,off load tap changing transformer iec |
220kV Three-phase Two-winding Off-circuit Tap-changing Power Transformer
The 220KV transformer adopted the full folding plate tank structure of 110KV transformer, making its structure more rational, easier for site installation and inspection. Combining our many years of design and manufacture experiences, the reliability and performance of the product have reached international advanced level.
Through continuous improvement and alteration, our products are with characteristics of low loss, low noise, low partial discharge, high short circuit withstand capacity, high impedance, and fully-enclosed structure. The series covers two-winding and three-winding off-circuit tap changing power transformer, on-load tap changing transformer and tap-changing auto transformer. Main features as follows:
1. 220kV Three-phase Two-winding Off-circuit Tap-changing Power Transformer Product Features
1.1 Product standards
GB1094.1~2-2013
GB1094.3-2003
GB1094.5-2008
GB/T6451-2008
IEC60076
1.2 Low loss
Optimization of electromagnetic calculations, using combined technology of electrical shielding and magnetic circuit, effectively controlled leakage, s0 as to reduce the load loss and to avoid partial overheating.
1.3 Low partial discharge
To ensure the safe and steady operation of the transformer under continuous rated voltage, our Electric Power Research Institute conducted loads of research to develop a more reasonable insulation structure, plus the strict technology specifications and technical staff experience, ensured the low partial discharge of our products.
1.4 High strength
Adoption of six-side positioning method for the body, meets the transportation requirements of, horizontal acceleration not more than 0.3g, vertical direction not greater than 0.1 5g.
2 220kV Three-phase Two-winding Off-circuit Tap-changing Power Transformer Product Features Technology Features
2.1 Transformer oil tank sealed structure adopted Tianan typical design, with strict control of sealing material and the compression coefficient of the sealing rings, a formal leakage test would be carried out after the completion of assembly process, so as to ensure the tank is leakage-free.
2.2 Changed the traditional process of coil assembly. use pre- assembly structural design, with the technology and craft, to avoid decrease of mechanical strength caused by the overall contraction during the drying process.
Use imported laminated wood at coil ends, with good mechanical and electrical quality.
Constant pressure device is used during the transformer assembly process, to apply axial pretightening force on the three-phase coil and insulation parts.
3. 220kV Three-phase Two-winding Off-circuit Tap-changing Power Transformer Product Features Parameter sheet
Rated Capacity | Voltage and tap range | Connection | No-load loss(kW) | Load loss (kW) | No-load current (%) | Impedance (%) | |
HV kV | LV kV | ||||||
31500 |
220±2x2.5%
242±2x2.5% |
6.3 6.6 10.5 11 |
YNd11 |
35 | 135 | 0.70 |
12~14 |
40000 | 41 | 157 | 0.70 | ||||
50000 | 49 | 189 | 0.65 | ||||
63000 | 58 | 220 | 0.65 | ||||
75000 |
10.5 11 13.8 |
67 | 250 | 0.60 | |||
90000 | 77 | 288 | 0.55 | ||||
120000 | 94 | 345 | 0.55 | ||||
150000 |
11 13.8 15.75 18 20 |
112 | 405 | 0.50 | |||
160000 | 117 | 425 | 0.49 | ||||
180000 | 128 | 459 | 0.46 | ||||
240000 | 160 | 567 | 0.42 | ||||
300000 |
15.75 18 20 |
189 | 675 | 0.38 | |||
360000 | 217 | 774 | 0.38 | ||||
370000 | 221 | 790 | 0.38 | ||||
400000 | 234 | 837 | 0.35 | ||||
420000 | 242 | 868 | 0.35 |
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Tel: +8613858385873