220kV Power Transformer
The 220 kV power transformers developed and manufactured by Tian’an Electric adopt the folded-plate oil tank structure used in the 110 kV models, resulting in a more rational product design that facilitates on-site installation and core-exposure inspection. Leveraging the company’s many years of experience in transformer design and manufacturing, the products achieve internationally advanced levels of reliability and performance. Through continuous refinement and improvement, a comprehensive product series has been established, encompassing three-phase dual-winding and three-winding no-load tap-changing transformers, on-load tap-changing transformers, and autotransformers, among others.
Category:
Transformer
Keywords:
220kV Power Transformer
The 220 kV power transformers developed and manufactured by Tian’an Electric adopt the folded-plate oil tank structure used in the 110 kV models, resulting in a more rational product design that facilitates on-site installation and core-exposure inspection. Leveraging the company’s many years of experience in transformer design and manufacturing, the products achieve internationally advanced levels of reliability and performance. Through continuous refinement and improvement, a comprehensive product series has been established, encompassing three-phase dual-winding and three-winding no-load tap-changing transformers, on-load tap-changing transformers, and autotransformers, among others.
Applicable to: Power plants, substations, and large industrial and mining enterprises.
1) Exceptional ability of the transformer to withstand sudden short circuits
2) Reduce load losses through accurate leakage flux calculation.
3) Low partial discharge
4) Low Noise
5) The use of high-quality oxygen-free copper windings, self-bonding transposed conductors, and six-sided core positioning ensures the product’s high mechanical strength.
6) The laminations are made from high-quality, high-performance Hi-B silicon steel sheets, cut using a CNC-controlled GEORG core-cutting line, and subjected to rounding and finishing treatments.
7) Fully enclosed fuel tank with a specially designed sealing structure, ensuring a service life of 30 years and maintenance-free operation.
8) Advanced coal-gas-phase drying equipment is used to thoroughly dry the transformer, and a full-vacuum oil-filling process is employed to ensure the insulation performance of both the insulating components and the transformer oil, thereby significantly enhancing the transformer’s safety and reliability.
(S11 Series 220 kV Three-Phase Dual-Winding No-Excitation Voltage-Regulating Power Transformer)
Rated capacity | Voltage Combination and Tap Range | Connection Group | No-load loss | Load loss (kW) | No-load current | Short-circuit impedance | |
High Voltage HV | Low Voltage LV | ||||||
31500 | 220
242 | 6.3 | Ynd11 | 28 | 128.3 | 0.5 | 12–14 |
40000 | 32.8 | 149.2 | 0.5 | ||||
50000 | 39.2 | 179.6 | 0.45 | ||||
63000 | 46.4 | 209.0 | 0.45 | ||||
75000 | 10.5 | 53.6 | 237.5 | 0.4 | |||
90000 | 61.6 | 273.6 | 0.35 | ||||
120000 | 75.2 | 327.8 | 0.35 | ||||
150000 | 11 | 89.6 | 384.8 | 0.3 | |||
160000 | 93.6 | 403.8 | 0.29 | ||||
180000 | 102.4 | 436.1 | 0.26 | ||||
240000 | 128.0 | 538.7 | 0.22 | ||||
300000 |
| 151.2 | 641.3 | 0.18 | |||
360000 | 173.6 | 735.3 | 0.18 | ||||
370000 | 176.8 | 750.5 | 0.18 | ||||
400000 |
|
|
| 187.2 | 795.2 | 0.15 |
|
420000 |
|
|
| 193.6 | 824.6 | 0.15 |
|
S11 Series 220 kV Three-Phase Three-Winding On-Load Tap-Changing Power Transformer
Rated capacity | Voltage Combination and Tap Range | Connection Group | No-load loss | Load loss (kW) | No-load current | Capacity Allocation (%) | Short-circuit impedance | ||
High Voltage HV | Medium Voltage MV | Low Voltage LV | |||||||
31500 | 220 | 69 | 6.3 | YNyn0d11 | 35.2 | 153.9 | 0.57 | 100/100/100 | High school High-Low Medium-low |
40000 | 41.6 | 179.6 | 0.50 | ||||||
50000 | 48 | 213.8 | 0.43 | ||||||
63000 | 56 | 248.0 | 0.43 | ||||||
90000 | 73.6 | 333.5 | 0.36 | ||||||
120000 | 92 | 410.4 | 0.36 | ||||||
150000 | 10.5 | 108 | 487.4 | 0.29 | |||||
180000 | 124.8 | 598.5 | 0.29 | ||||||
240000 | 154.4 | 741.0 | 0.25 | ||||||
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Address: No. 816 Jinghua Road, Ningbo National High-tech Zone, Zhejiang Province
Phone: +86-0574-87916011 (International)
E-mail: export@tianandl.com
Phone: +86-0574-87900000 (Domestic)
Email: sales@tianandl.com
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