High Voltage Transformer is a static electrical equipment and the flagship product of Huixing Company. Its core function is to convert alternating current (AC) at one voltage and current level into other voltage and current levels while maintaining the same frequency.
With the development of the transformer industry, transformers have seen continuous upgrades in voltage grades and a steady increase in single-unit capacity. Accordingly, their safety and reliability in application scenarios such as power stations have become an essential requirement.
Huixing power transformers feature high efficiency, superior quality, competitive pricing and considerate after-sales service.
The high voltage transformer enables precise high-voltage step-up and step-down, perfectly meeting the matching requirements of different voltage levels throughout power generation, transmission and distribution.
Based on the principle of high-voltage power transmission, the transformer greatly reduces line transmission current and resistance loss, enabling energy-saving long-distance power delivery.
Designed with electrical isolation between high-voltage and low-voltage sides, it delivers excellent insulation performance. It effectively prevents high voltage from penetrating to the low-voltage side, ensuring stable equipment operation and personnel safety. Meanwhile, it features strong anti-interference capability and high operational stability.
High voltage transformers can be customized for ultra-large capacity specifications. They not only satisfy high-power load demands of national power grids and large industrial bases, but also support long-term continuous and stable operation to adapt to power loads of various scenarios.
Adopting mature oil-immersed and dry-type technologies, the product features high mechanical strength, great heat resistance and long service life. It requires no complicated daily maintenance with low overall maintenance costs.
It supports sectional and zoned power supply layout of the power grid, facilitates flexible allocation of power resources, and improves power supply redundancy as well as the overall operational reliability of the grid.
Adopting world-class product design technology and R&D platforms, our high voltage transformer fully complies with the new energy efficiency standard GB20052-2020. With optimized design and 3D aided design technology, it features a more compact structure and streamlined appearance, along with low noise and high energy efficiency performance.
During the R&D phase, electromagnetic field simulation is adopted to select the optimal solution and standardize product calculation and analysis processes. Advanced international analysis systems for electric field, magnetic field, temperature field and structural strength are widely applied. This ensures superior electrical performance and mechanical strength, and greatly enhances short-circuit withstand capability.
Integrally molded sealing components are adopted to fundamentally eliminate oil leakage from the structural design. It ensures safe and reliable operation while meeting green environmental protection requirements.
High-quality components are adopted with strict quality control implemented for both core and auxiliary parts. This guarantees long-term operational stability and reliability of the complete unit, well adapting to the industry trend of high voltage and large capacity development.
At the power generation end, high voltage transformers step up low-voltage power generated by power plants to meet the requirements of long-distance power transmission. At the power distribution end, they step down voltage at regional substations and deliver power at appropriate voltage levels to urban and rural residential areas, commercial complexes and industrial parks, acting as an essential hub for power transmission and distribution.
For industrial scenarios including mining, metallurgy, chemical production and large manufacturing plants, the transformers provide stable high-voltage power for high-voltage motors, large production equipment and high-voltage distribution rooms, ensuring continuous industrial operation.
They deliver customized special high-voltage power for professional scenarios such as medical facilities (X-ray, CT equipment), environmental protection projects (electrostatic dust removal devices), scientific research (high-voltage test equipment), and special manufacturing (laser devices, ozone generators), fully meeting the operational needs of specialized equipment.
The transformers work with power distribution systems to realize voltage regulation and stabilization. When grid faults occur, they can quickly isolate faulty sections, restrain fault spread, and safeguard the overall safe operation of the power grid.
Widely applied in photovoltaic power stations and wind farms, they collect new energy power and convert voltage levels to enable grid-connected power transmission. For high-speed railways and urban rail transit systems, they supply matched voltage for traction power supply systems and guarantee stable operation of transportation networks.
As indispensable core equipment in power stations, high voltage transformers feature high voltage endurance, large capacity adaptability, and outstanding safety and reliability. They support power conversion and output in power stations, ensuring stable overall power supply of the power system.
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220kV SZ Series Three-phase Two-winding On-load Tap Changer Power Transformer |
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|
Rated Capacity(kVA) |
Grade 1 Energy Efficiency |
Grade 2 Energy Efficiency |
Grade 3 Energy Efficiency |
Impedance Voltage(%) |
Total Weight(t) |
Overall Dimensions L×W×H(mm) |
|||
|
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
||||
|
50000 |
24 |
161 |
28 |
161 |
34 |
170 |
12～14 |
98 |
6950×5400×7370 |
|
63000 |
28 |
188 |
33 |
188 |
40 |
199 |
115 |
7000×5200×7300 |
|
|
90000 |
35 |
246 |
42 |
246 |
51 |
259 |
128 |
7250×5600×7360 |
|
|
120000 |
43 |
304 |
51 |
304 |
63 |
321 |
140 |
7300×7200×7260 |
|
|
150000 |
51 |
360 |
60 |
360 |
74 |
380 |
175 |
8200×5800×7600 |
|
|
180000 |
59 |
413 |
70 |
413 |
86 |
436 |
184 |
8560×6060×7600 |
|
|
240000 |
77 |
504 |
91 |
504 |
112 |
532 |
230 |
9100×6500×8000 |
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220kV S Series Three-phase Two-winding Off-circuit Tap Changer Power Transformer |
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|
Rated Capacity(kVA) |
Grade 1 Energy Efficiency |
Grade 2 Energy Efficiency |
Grade 3 Energy Efficiency |
Impedance Voltage(%) |
Total Weight(t) |
Overall Dimensions L×W×H(mm) |
|||
|
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
||||
|
50000 |
21 |
161 |
25 |
161 |
31 |
170 |
12～14 |
89.5 |
5800×5700×7300 |
|
63000 |
25 |
188 |
30 |
188 |
37 |
199 |
102 |
5970×5920×7280 |
|
|
75000 |
29 |
213 |
34 |
213 |
42 |
225 |
105 |
5800×5760×7770 |
|
|
90000 |
34 |
246 |
40 |
246 |
49 |
259 |
118 |
6250×6200×7400 |
|
|
120000 |
43 |
304 |
51 |
304 |
63 |
321 |
135 |
6600×6650×7900 |
|
|
150000 |
51 |
360 |
60 |
360 |
74 |
380 |
160 |
7000×7050×8300 |
|
|
180000 |
59 |
413 |
70 |
413 |
86 |
436 |
180 |
7300×7200×8300 |
|
|
240000 |
77 |
504 |
91 |
504 |
112 |
532 |
222 |
7800×7700×8800 |
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220kV SSZ Series Three-Phase Three-Winding On-Load Tap-changer Power Transformer |
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|
Rated Capacity(kVA) |
Grade 1 Energy Efficiency |
Grade 2 Energy Efficiency |
Grade 3 Energy Efficiency |
Impedance Voltage(%) |
Total Weight(t) |
Overall Dimensions L×W×H(mm) |
|||
|
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
||||
|
50000 |
26 |
194 |
31 |
194 |
38 |
205 |
12~14 High-Low 22~24 Medium-Low 7~9 |
102 |
7900×6150×6100 |
|
63000 |
31 |
231 |
36 |
231 |
45 |
244 |
121.6 |
7250×5950×6450 |
|
|
90000 |
40 |
300 |
47 |
305 |
58 |
316 |
134 |
7900×6510×7030 |
|
|
120000 |
51 |
369 |
60 |
369 |
74 |
390 |
166 |
8500×7000×7560 |
|
|
150000 |
59 |
438 |
70 |
438 |
86 |
463 |
196 |
9000×7400×8000 |
|
|
180000 |
68 |
538 |
81 |
538 |
99 |
568 |
215 |
9800×9000×8000 |
|
|
240000 |
85 |
667 |
100 |
667 |
123 |
704 |
243 |
10000×7500×8500 |
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110kV SZ Series Three-phase Two-winding On-load Tap Changer Power Transformer |
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|
Rated Capacity(kVA) |
Grade 1 Energy Efficiency |
Grade 2 Energy Efficiency |
Grade 3 Energy Efficiency |
Impedance Voltage(%) |
Total Weight(t) |
Overall Dimensions L×W×H(mm) |
|||
|
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
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|
10000 |
6.2 |
45 |
7.3 |
45 |
9.0 |
48 |
10.5 |
31.3 |
5900×4350×5520 |
|
12500 |
7.4 |
53 |
8.7 |
53 |
10.7 |
56 |
31.8 |
6150×4270×5000 |
|
|
16000 |
8.9 |
66 |
10.5 |
66 |
12.9 |
69 |
38.5 |
5750×4600×4920 |
|
|
20000 |
10.6 |
79 |
12.5 |
79 |
15.4 |
84 |
40.9 |
5290×4700×4650 |
|
|
25000 |
12.5 |
94 |
14.8 |
94 |
18.2 |
99 |
48.3 |
6110×4420×5000 |
|
|
31500 |
14.9 |
111 |
17.6 |
111 |
21.6 |
117 |
56.5 |
6340×4920×4920 |
|
|
40000 |
17.8 |
140 |
21 |
140 |
25.8 |
148 |
78.3 |
6950×5200×5050 |
|
|
50000 |
21 |
175 |
24.8 |
175 |
30.6 |
184 |
82.5 |
6900×5580×5260 |
|
|
63000 |
25 |
209 |
29.5 |
209 |
36.3 |
220 |
93 |
6900×4900×6150 |
|
|
110kV SSZ Series Three-Phase Three-Winding On-Load Tap-changer Power Transformer |
|||||||||
|
Rated Capacity(kVA) |
Grade 1 Energy Efficiency |
Grade 2 Energy Efficiency |
Grade 3 Energy Efficiency |
Impedance Voltage(%) |
Total Weight(t) |
Overall Dimensions L×W×H(mm) |
|||
|
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
||||
|
10000 |
7.5 |
56 |
8.8 |
56 |
10.9 |
59 |
High-Medium
10.5
High-Low
17.5~18.5
Medium-Low
6.5 |
40 |
7000×4500×5000 |
|
12500 |
8.9 |
67 |
10.5 |
67 |
12.9 |
70 |
45 |
6900×4700×5100 |
|
|
16000 |
10.6 |
81 |
12.5 |
81 |
15.4 |
86 |
48 |
6930×4760×4880 |
|
|
20000 |
12.5 |
95 |
14.9 |
95 |
18.2 |
101 |
56 |
6800×5000 |
|
|
25000 |
14.9 |
113 |
17.6 |
113 |
21.6 |
120 |
60 |
6800×5300×5000 |
|
|
31500 |
17.7 |
134 |
20.9 |
134 |
25.7 |
142 |
76 |
7400×5120×5300 |
|
|
40000 |
21.2 |
161 |
25 |
161 |
30.8 |
170 |
87 |
7540×5100×5400 |
|
|
50000 |
25 |
192 |
29.6 |
192 |
36.4 |
202 |
97 |
7800×5400×5800 |
|
|
63000 |
29.8 |
230 |
35.2 |
230 |
43.3 |
243 |
110 |
8000×6100×5650 |
|
|
35kV SZ Series Three-phase Two-winding On-load Tap Changer Power Transformer |
|||||||||
|
Rated Capacity(kVA) |
Grade 1 Energy Efficiency |
Grade 2 Energy Efficiency |
Grade 3 Energy Efficiency |
Impedance Voltage(%) |
Total Weight(t) |
Overall Dimensions L×W×H(mm) |
|||
|
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
No-load Loss(kW) |
Load Loss(75℃,kW) |
||||
|
3150 |
1.8 |
22.2 |
2.1 |
22.2 |
2.6 |
23.5 |
7 |
11 |
3700×3000×2700 |
|
4000 |
2.1 |
26.2 |
2.5 |
26.2 |
3.1 |
27.6 |
12.7 |
3800×3150×2900 |
|
|
5000 |
2.6 |
30.8 |
3.0 |
30.8 |
3.7 |
32.5 |
14 |
4100×3400×3050 |
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Address
Building 603, Wangjingyuan, Chaoyang District, Beijing，China
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If you have any enquiry about quotation or cooperation, please feel free to email us at baigang@huixingelectric.com or use the following inquiry form.Our sales representative will contact you within 24 hours. Thank you for your interest in our products.
